OEE Formula Explained — A Real Factory Story on Calculating OEE the Right Way (and Why Paper Logs Mislead You)

11 Nov, 2025

    Introduction

    OEE Formula Explained — How sfHawk Helped a Tier-2 Auto Supplier Find Its True Efficiency Discover how a Tier-2 auto-component supplier uncovered its real OEE (63%) after years of believing it was 88%. Learn the correct OEE formula, real-world calculations, and why automated OEE monitoring like sfHawk delivers honest performance insights. 
     

    What you will learn:

     

    When We Walked Into the Plant 

    When our team at sfHawk visited a Tier-2 supplier for a major Indian auto OEM, the floor looked picture-perfect. Machines ran steadily, operators filled logbooks with care, and a whiteboard proudly displayed: Yesterday’s OEE — 88.4 % The production head smiled, “We’ve been holding 85-plus for months.” But years of field visits had taught us one thing: paper OEE numbers often hide more than they reveal. 

    The Paper-Based Illusion 

    The company manufactured precision shafts — tight-tolerance components for steering assemblies. Operators noted start and stop times in logbooks, and supervisors compiled OEE at shift end. When we asked, “Do you track short stops too?” one operator chuckled, “No, sir. Only when the machine is down for more than 10 minutes.” That simple sentence explained everything. Those few-minute pauses for tool change, material fetch, or inspection may seem trivial — but across shifts, they steal hours. 

    The OEE Formula Refresher 

    Before challenging their numbers, we revisited the basics with their engineers:
    OEE = Availability × Performance × Quality 
    • Availability = Running Time / Planned Production Time 
    • Performance = (Total Parts × Ideal Cycle Time) / Running Time or No.of parts produced/ No.of parts which could be produced 
    • Quality = Good Parts / Total Parts 
    Simple math — but only if the data beneath it is honest. 

    What the Paper Showed 

    For one CNC turning center (24 hours, 3 shifts):  
    Parameter Value
    Planned Production Time 1440 min (3 × 8 h)
    Breaks 90 min
    Planned Time after Breaks 1350 min
    Reported Downtime 150 min
    Reported Running Time 1200 min
    Standard Cycle Time 2.5 min/part
    Parts Produced 480
    Rejections 8

    Availability = 1200 / 1350 = 88.9 %
    Performance = (480 × 2.5) / 1 200 = 100 %
    Quality = (472 / 480) = 98.3 %
    OEE = 0.889 × 1.00 × 0.983 = 0.873 ≈ 87.3 %
    Eighty-seven percent — almost world-class, on paper. 

    What the System Found 

    We connected sfHawk’s real-time OEE monitoring system to the same machine for a week. By day two, the story changed.
    Parameter value
    Planned Production Time 1350 min
    Actual Running Time 930 min
    Hidden Micro-Stops (< 5 min each) 120 min
    Long Downtimes 300 min (tool changes, material wait)
    Standard Cycle Time 2.5 min/part
    Parts Produced 360
    Rejections 15
    Now recalculate: Availability = 930 / 1 350 = 68.9 % Performance = (360 × 2.5) / 930 = 96.8 % Quality = (345 / 360) = 95.8 % OEE = 0.689 × 0.968 × 0.958 = 0.639 ≈ 63.9 % The “88 % machine” was actually running at 63.9 % OEE ,nearly one-third of capacity lost every day.  

    Comparison between Paper OEE and Real OEE

     

    The Unseen Losses, Now Visible

    With automated tracking, the plant saw what had always slipped through:
    • Micro-stops: Frequent 2–3 min gaps during tool and gauge checks. 
    • Setup delays: Slow start-ups at shift changes. 
    • Inspection queues: Machines waiting while parts sat for approval. 
    • Material waits: 15–20 min intervals during part changeovers. 
    The production head looked at the dashboard, stunned: “No one ever wrote these down; they didn’t even feel like downtime.” That was week one, the wake-up call. 

    Turning Data Into Action 

    Once the team had transparent data, they went after low-hanging fruit:
    • Tooling Setup Standardization : reduced average setup time by 18 %. 
    • Pre-shift Material Staging : no more waiting for raw bars. 
    • Parallel Inspection Flow : operators could load next job while QC checked previous one. 
    Within four weeks, the same machine’s metrics looked like this:
    Parameter Week 1 (Before) Week 4 (After)
    Availability 68.9 % 80.2 %
    Performance 96.8 % 97.5 %
    Quality 95.8 % 96.5 %
    OEE 63.9 % 75.3 %
     

    From Logs to Live Dashboards 

    Now, instead of notebooks, every machine streamed live data into sfHawk’s OEE dashboard. Color-coded tiles showed Availability, Performance, and Quality in real time. Supervisors could pinpoint issues instantly —no waiting for reports, no guesswork. Downtime reasons auto-tagged as:
    • Tool Change 
    • Material Wait 
    • Quality Hold 
    • Power Fluctuation 
    For the first time, the team wasn’tcollecting data — they were acting on it. 

    The 30-Day Turnaround 

    After a month, the factory’s average OEE jumped from 63.9 % to 75.3 %. That’s the equivalent of adding almost one extra productive shift per week — without buying a new machine.
    • Micro-stoppages ↓ by 35 % 
    • Setup time ↓ by 20 % 
    • Output ↑ by 12 % 
    The plant head summed it up perfectly: “For years we believed we were at 85 %. sfHawk showed us the truth — and the truth helped us improve.” 

    Why System-Based OEE Always Wins 

    Manual OEE tracking is like checking your car’s mileage once a month — you miss the real-time story. Automated OEE monitoring, on the other hand:
    • Captures every second of machine activity. 
    • Standardizes definitions of downtime and cycle time. 
    • Delivers live dashboards for instant decisions. 
    • Removes human bias and guesswork. 
    When you measure accurately, improvement becomes inevitable. 

    Final Thoughts 

    OEE isn’t just a KPI — it’s your factory’s heartbeat. But to hear it clearly, you need clean, real-time data.  A system-based OEE calculation is always more reliable than a paper-and-pen approach. It eliminates human error, updates data in real time, and helps you make informed decisions instantly.  If you’d like to see how automated OEE tracking can reveal your factory’s true potential, reach us at www.sfhawk.com inquiry@sfhawk.com Call: +91120 98351  

    How to Calculate Cycle Time in Manufacturing

    3 Nov, 2025

      Introduction

      Have you ever had the impression that despite your machines’ best efforts, they are not running as efficiently as they could? Here’s where knowing cycle time is useful. This blog post will explain how to calculate cycle time step-by-step, give examples from real-world situations, and describe how sfHawk Solutions can help you find inefficiencies and boost overall production performance.

      Overview

      Cycle time is similar to your factory’s speedometer; the more precisely you read it, the more efficiently your production process will run.

      There are two main ways to figure out cycle time:

      High-Speed Production: When the start and end times of a cycle are unclear, use the total time divided by the number of parts or parts per minute.

      Longer Cycle Time: For slower and more accurate processes, such as CNC machining, measure the start and end times of the cycle directly.

      It’s critical to distinguish between productive and non-productive time; process, inspection, setup, idle, and queue time must all be taken into account to obtain a realistic view of your efficiency. sfHawk Solutions does the heavy lifting, serving as a cycle time calculator that automatically tracks trends, bottlenecks, and downtime. You can find small changes that lead to significant gains in productivity and profitability by understanding how to calculate cycle time. With sfHawk Solutions, even minor adjustments, like reducing idle time or tool change times, can have a significant impact. Over hundreds of cycles and machines, these small improvements add up to a significant increase in output.  

      What you will learn:

      How to calculate cycle time?

      Understanding cycle time is key to optimizing your manufacturing process. It helps you measure how long it takes to produce one unit of your product, and by tracking it, you can identify areas where you can improve efficiency and increase output. There are two common methods to calculate cycle time, depending on the production process. Let’s break it down in simpler terms with different examples to make it easier to understand.

      Method 1 High-Speed Production (When You Don’t Track Each Cycle)

      When to Use:

      This method is perfect for fast-paced production environments, like packaging or assembly lines, where the cycle start and end times aren’t easy to track. If you know the production rate, you can calculate the cycle time without tracking every cycle. Formula:
      • Cycle Time per part = Total Time Taken / Number of Parts Produced
       
      • Alternatively, if you know the parts per minute (ppm), use: Cycle Time (in seconds) = 60 / Parts per Minute (ppm)

      Example: Imagine you’re running a machine that produces 150 parts per minute.

      To calculate the cycle time:
      • Cycle Time = 60 / 150 = 0.4 seconds per part
      This means that every 0.4 seconds, your machine produces one part.

      Why This Works:

      This method works well for high-speed machines like conveyors or molding machines where it’s impractical to measure the start and end time for each part. Instead, by knowing the rate of production (e.g., 150 parts per minute), you can calculate how much time it takes to produce each part without tracking every individual cycle.

      Method 2Longer Cycle Time (When You Can Measure Start and End Times)

      When to Use:

      This method is best for slower production processes like CNC machining or assembling complex parts, where each cycle is more deliberate and measurable. You can track the exact time a cycle starts and ends, making it easier to calculate cycle time accurately. Formula:
      • Cycle Time = Cycle End Time – Cycle Start Time
      Example: Let’s say you’re using a CNC machine to machine a part. The cycle start time is 08:10:30, and the cycle end time is 08:20:00. To calculate the cycle time:
      • Cycle Time = 08:20:00 – 08:10:30 = 9 minutes 30 seconds
      This means it took 9 minutes and 30 seconds to complete one cycle of machining.

      Why This Works:

      This method is great for processes that take more time and involve multiple steps (like machining, assembly, or molding). By tracking the start and end times of each cycle, you get a precise measurement of how long it takes to complete one unit.  

      Real-World Examples of Cycle Time Calculation

      Example 1: High-Speed Production (Parts Per Minute) In a factory that produces plastic bottle caps, the production line is running 6 injection molding machines. On one shift, the supervisor observes that Machine 4 produced 18,000 caps in 60 minutes. To calculate the cycle time for Machine 4:
      • Cycle Time = 60 × 60 seconds / 18,000
      • Cycle Time = 12 seconds per cap
      This means every 12 seconds, Machine 4 produces one cap. The supervisor can use this information to benchmark the machine’s performance and ensure it’s running at full capacity.

      Why This Helps:

      By knowing the cycle time (12 seconds per part), the supervisor can spot if the machine is running slower than expected. For instance, if Machine 4 starts producing caps every 15 seconds, they’ll know there’s a problem and can act quickly to fix it. Example 2: Longer Cycle Time (Start-End Measurement) In a CNC workshop, a machine is being used to make steel shafts for automobile gearboxes. The operator measures one full cycle of machining:
      • Start Time: 09:00:00
      • End Time: 09:20:00
      To calculate the cycle time:
      • Cycle Time = 09:20:00 – 09:00:00 = 20 minutes
      This means it takes 20 minutes to machine one shaft.

      Why This Helps:

      Knowing this cycle time allows the operator to plan the shift more efficiently. For instance, during an 8-hour shift, they’ll know that the machine can produce approximately 24 shafts (if there’s no downtime). If another machine can produce a shaft in 18 minutes, it might indicate that Machine 2 is running more efficiently, and Machine 1 needs adjustments.

      Tracking Cycle Time: Why It’s Important

      Calculating cycle time helps you measure the performance of your machines and identify areas of improvement. Whether you’re using the high-speed production method (based on parts per minute) or the longer cycle time method (by tracking start and end times), knowing your cycle time allows you to:
      • Identify inefficiencies: Are your machines slowing down? Are there bottlenecks in your production?
      • Set benchmarks: By knowing how long it should take to produce a part, you can compare the performance of different machines or operators.
      • Optimize productivity: Small adjustments like reducing tool change times or eliminating idle time can lead to big improvements in output and efficiency.
       

      How Does sfHawk Solutions Help Monitor Cycle Time?

      Cycle time is a vital metric on the shop floor, but only if it’s tracked accurately. Relying on manual tracking with stopwatches, operator notes, or spreadsheets often leads to errors and incomplete data. This is where real-time machine monitoring software like sfHawk Solutions comes in. Automatic Cycle Event Capture sfHawk Solutions integrates directly with your CNC machines to record every cycle start and stop signal in real time. This means you get the precise cycle time and no estimates, no operator errors. Breaking Down Productive vs. Non-Productive Time sfHawk Solutions doesn’t just provide one overall number. It divides cycle time into:
      • Processing time (actual cutting/machining)
      • Inspection time (quality checks)
      • Setup or changeover time
      • Idle or queue time
      This detailed breakdown allows you to see exactly where time is spent, not just the total cycle time. Real-Time Monitoring Dashboards display live cycle times versus target cycle times. If a cycle time suddenly exceeds the expected range, sfHawk Solutions sends alerts, allowing supervisors to resolve the issue before it becomes a bigger problem. Historical Insights and Trends sfHawk Solutions stores all cycle time data, enabling you to:
      • Compare performance across shifts, machines, or operators
      • Identify bottlenecks (e.g., excessive tool change or setup times)
      • Track improvements after process adjustments
      Knowing how to compute cycle time is the first step if you’re serious about increasing productivity. But there will always be gaps if you track it manually. With sfHawk Solutions, you get profound insights into cycle time rather than just calculating it. You know where time is lost, why each part takes so long, and how to fix it. These minor adjustments accumulate over time to produce notable increases in productivity, machine utilization, and profitability.  

      Effective Strategies to Boost Production Capacity in Manufacturing

      27 Oct, 2025

        Introduction

        Increasing production capacity is a primary goal for manufacturers who need to meet rising demand while still maintaining or improving product quality. Achieving this involves optimizing current operations, implementing smarter workflows, and upgrading technology. In this blog, we’ll explore the strategies and tools that manufacturers can use to effectively increase their production capacity without breaking the bank.  

           What You’ll Learn

        Bottleneck Identification

        The first step to increasing production capacity is identifying the bottlenecks in your manufacturing process. Bottlenecks slow down the overall production speed and limit capacity. By using machine monitoring software and real-time production monitoring systems, manufacturers can easily track the performance of each machine and process, helping them spot areas where delays occur.

        Example

        For instance, a CNC machine monitoring software might show that a specific machine is underperforming, causing delays on the production line. Once identified, managers can take corrective measures to resolve the issue.

        Broader Contribution

        By addressing these bottlenecks, manufacturers can boost their capacity without making large capital investments. Fixing bottlenecks helps streamline the production process, leading to smoother operations and faster output.  

        Optimize Overall Equipment Effectiveness (OEE)

        What is OEE?

        OEE (Overall Equipment Effectiveness) is a measure of how efficiently your manufacturing process is running. It looks at three key factors: performance, quality, and availability. By optimizing OEE with OEE tracking software, manufacturers can increase production capacity and get the most out of their machines.

        Real-World Application

        Manufacturers can use OEE monitoring systems to evaluate how well their equipment is performing. If a machine is underperforming, adjustments can be made to improve its output and reduce downtime, thus improving overall capacity.

        Insights

        By continually improving OEE, manufacturers can increase throughput without needing additional machines. This allows them to scale production within existing resources.  

        Leverage Predictive Maintenance

        Prevent Unscheduled Downtime

        Unplanned downtime is one of the biggest obstacles to increasing production capacity. Predictive maintenance helps prevent downtime by forecasting machine failures before they happen. By using condition monitoring systems and machine health monitoring systems, manufacturers can predict when a machine is likely to fail and schedule maintenance accordingly.

        Challenges

        A common mistake is relying solely on reactive maintenance, which only addresses problems after they occur. This can lead to costly repairs and long downtime, both of which harm production capacity.

        Solutions

        By using predictive maintenance tools like spindle load analysis monitoring IIoT and CNC tool life monitoring software, manufacturers can stay ahead of potential failures and keep production lines running smoothly. This reduces downtime and helps maintain continuous production.  

        Embrace Smart Factory Automation

        Automate Repetitive Tasks

        Automation is key to increasing production capacity. By adopting smart factory solutions and smart factory automation, manufacturers can automate repetitive tasks like material handling, assembly, and packaging. This not only improves efficiency but also frees up workers for higher-value tasks.

        Real-World Application

        For example, automating material handling processes can help a manufacturer reduce the time spent on these tasks, enabling faster throughput and higher production capacity.

        Insights

        Automation doesn’t just improve efficiency—it also ensures consistent product quality. This scalability allows manufacturers to meet rising demand without sacrificing quality, making it easier to increase production capacity.  

        Practical Tips or Actionable Steps

        • Find bottlenecks: Use real-time production monitoring systems to track your production process and identify where delays are happening.
         
        • Optimize OEE: Use OEE tracking software to measure and improve machine performance, availability, and quality.
         
        • Adopt predictive maintenance: Implement CNC tool life monitoring software and machine health monitoring systems to anticipate and address potential failures before they disrupt production.
         
        • Invest in smart factory solutions: Use smart factory automation to scale your production with minimal human intervention and automate repetitive tasks.
         
        • Train employees: Ensure workers are trained to use digital tools effectively, increasing their productivity and efficiency on the shop floor.
           

        Conclusion

        Increasing production capacity doesn’t always require adding more machines or expanding facilities. By optimizing existing resources, addressing bottlenecks, improving OEE, adopting predictive maintenance, and embracing smart factory automation, manufacturers can boost their capacity without heavy capital investment. With the right technologies and strategies, you can scale your production to meet growing demand while maintaining high levels of efficiency and quality. Start implementing these strategies today and watch your factory’s potential soar. Stay ahead of the competition and meet the demands of the future!

        How to Improve Shop Floor Management?

        14 Oct, 2025

          The solution to increasing output, improving quality, and reducing downtime lies in the success of shop floor management. The adoption of digital technologies and data-centric solutions can make shop floors more efficient as manufacturers face increasing pressure to deliver more, faster, and with better quality. Efficient shop floor management driven by real-time data is essential for getting things done. Let’s look at how to enhance shop floor management by focusing on valuable tactics and progress-fostering technologies.  

          Implement Real-Time Machine Monitoring

          Including a real-time production tracking system that enables you to see how your machine is performing is one of the first steps to making shop floor operations more efficient. Your machine’s status, production rates, and operational health can be constantly monitored by CNC machine monitoring software, VMC machine monitoring systems, and HMC machine monitoring systems.

          Benefits:

          • Real-time notifications of inefficiencies and machine breakdowns.
          • Higher equipment uptime through early identification of problems before they escalate into failures.
          • Supervisors can also monitor operations from anywhere using dashboards and mobile apps.

          Maximize Overall Equipment Effectiveness (OEE)

          OEE tracking software is crucial for determining the productivity of your machines. Productivity is measured by three main aspects, quantified through OEE monitoring systems:
          • Availability (ratio of machine uptime to downtime)
           
          • Performance (production speed)
           
          • Quality (defects in mass-produced products)
          Improved OEE keeps machines at peak efficiency, with waste and idle times reduced to near zero. This software helps factory managers decide how to prioritize production and maintenance schedules, ensuring maximum output with minimal downtime.

          Embrace Predictive and Preventive Maintenance

          Maintaining equipment health and avoiding unscheduled downtime require efficient maintenance. Predictive maintenance and condition monitoring systems can significantly reduce maintenance costs while improving operational efficiency.
          • Predictive maintenance predicts when a machine needs to be serviced using real-time data from machine health monitoring systems and industrial IoT for predictive maintenance.
          • Preventive maintenance uses machine performance parameters from equipment condition monitoring systems and CNC tool life monitoring software to schedule repairs before failures occur.
          By using the right tools, you can schedule maintenance and anticipate potential issues, avoiding costly unscheduled downtime.

          Improve Traceability and Quality Control

          Maintaining strict quality standards and traceability throughout the production cycle is fundamental to shop floor management. It’s possible to trace all components produced and stay within industry specifications by employing traceability solutions for CNC machine operators and component traceability systems. Using SPC charts for CNC machines can track process variances and ensure that all parts produced meet quality standards. Quality assurance procedures can be supported by real-time checks to detect flaws early, generating fewer shipments of faulty products to customers.

          Enable Workers Through Digital Solutions

          Improving operator productivity starts with providing technology to the shop floor management system. Operators need easy-to-use, manageable interfaces to track machine output, maintenance needs, and production progress. By using shop floor machine management software, operators can access real-time data and make decisions based on accurate information, rather than guesswork. Empowering employees to utilize such systems enables them to adopt data-driven methods in their daily operations, leading to increased productivity. Additionally, providing operators with smart factory automation software enables them to make quicker decisions, boosting motivation and overall efficiency.

          Enhance Communication Across the Shop Floor

          Communication is vital for the smooth operation of any factory. Shop floor management systems allow managers to improve communication between various teams, including those handling quality control, production, and maintenance. For example, production monitoring display systems can show real-time KPI and machine status information to all relevant employees, minimizing errors and miscommunication by keeping everyone updated.

          Implement Data-Driven Decision-Making

          Under Industry 4.0, the implementation of machine monitoring ERP systems and industrial control and automation systems allows manufacturers to make informed decisions based on real-time data. Through analysis, summarization, and multi-system visualization, factory managers can detect trends, optimize processes, and make decisions grounded in real-time information, not outdated assumptions or manual inputs. Running data analysis software on top of factory software and in-plant IoT technologies ensures that decisions are continuously informed by current, actionable insights.

          Use Smart Factory Solutions for Increased Flexibility

          Smart factory solutions provide the flexibility to adjust to different production requirements, offering customizable, cost-effective industrial production solutions. From rescheduling production to changing machine configurations, smart factory automation applications enable seamless modifications with minimal disruption. Automating repetitive activities frees up human resources for more value-added tasks, improving flexibility while enhancing overall productivity.

          Conclusion

          Shop floors can be optimized by more than just purchasing state-of-the-art software and machinery. It’s the implementation of the right systems and procedures that enable data-driven decision-making and real-time optimization. The implementation of real-time production tracking systems, OEE tracking software, predictive maintenance and condition monitoring systems, and smart factory automation can optimize manufacturing operations, increase efficiency, and drive profitability. In short, to remain competitive in today’s dynamic manufacturing landscape, it is essential to invest in digital factory solutions and harness the power of data to ensure long-term sustainability.

          Machine Monitoring and CNC: Driving Smart Manufacturing’s Future

          30 Sep, 2025

            Every second of machine downtime has an effect on profitability and productivity in the world of modern manufacturing. Businesses require intelligence, connectivity, and control in addition to machines in order to stay ahead of the competition. sfHawk CNC Machine Monitoring Software provide precisely that.

            sfHawk turns your shop floor into a smart factory solution that gives operators, managers, and decision-makers more power by fusing centralized CNC program management with real time production monitoring systems.

             

            The Significance of Machine Monitoring in the Current Industry

            Manufacturing is now more than just making parts; it’s about doing it more quickly, intelligently, and error-free. The CNC machine monitoring software from sfHawk functions as your shop floor machine management system, offering:

             

            OEE monitoring system and real-time machine condition monitoring: Check the status of your CNC, VMC machine monitoring system, or HMC machine monitoring system in real time.

            OEE tracking software: Precise assessment of performance, quality, and availability to increase productivity.

            Tooling machine monitoring system: Monitor tool performance closely and use insights to prolong tool life with advanced CNC tool life monitoring software.

            Production monitoring display system: Provide managers and operators with lucid, visual dashboards.

            Remote machine monitoring: Machine health and production status can be accessed from anywhere, anytime.

            Manufacturers can now make data-driven decisions that decrease downtime, boost throughput, and increase ROI by doing away with guesswork thanks to sfHawk.

             

            CNC: More Intelligent CNC Program Administration

            Production is frequently slowed down by outdated files and programming errors. Smooth communication between machines and operators is guaranteed by sfHawk’s shop floor machine management software with CNC functionality.

            No more looking for the correct version of a program thanks to centralized CNC program storage.

            Error-free transfers: Secure and automated transfers help minimize errors caused by manual loading.

            Traceability solutions for CNC machine operator: Monitor program approvals, modifications, and usage.

            Maintain total transparency for each production batch with a component traceability system.

            This increases accuracy and consistency in each cycle by ensuring that your CNC automation companies’ equipment, VMC, and HMC machines always receive the right instructions.

             

            Reliability through Predictive and Preventive Maintenance

            Unexpected malfunctions are expensive. To maintain the health of your machines, sfHawk incorporates condition monitoring and predictive maintenance systems.

            Equipment health monitoring system: Track temperature, vibrations, and spindle load analysis monitoring continuously.

            Preventive maintenance monitoring system: Plan services in advance of malfunctions.

            Optimize tool usage and avoid unplanned failures with CNC tool life monitoring software.

            SPC charts for CNC machines: Monitor quality patterns to increase first-pass yield.

            sfHawk guarantees the smooth and effective operation of your shop floor with industrial IoT for predictive maintenance and equipment condition monitoring systems.

             

            Smart Manufacturing with sfHawk

            sfHawk is more than just software, it’s a digital factory solution designed for the Industry 4.0 era.

             

            Smart industrial automation – Connect machines, operators, and data seamlessly.

            Intelligent manufacturing solutions – Use insights to optimize performance and reduce waste.

            Industrial manufacturing solutions – Adaptable to CNC, VMC, HMC, and other industrial equipment monitoring systems.

            Digital factory software – Real-time dashboards and analytics for total visibility.

            Smart factory automation – Driving connected, data-led shop floors.

            sfHawk is trusted by leading industrial automation companies and industrial automation and control systems companies to drive efficiency, quality, and innovation.

             

            The Competitive Edge

            sfHawk’s shop floor machine management software and OEE monitoring software benefit manufacturers in the following ways:

             

            ✅ Increased efficiency with real-time data

            ✅ Reduce downtime with the help of predictive maintenance and system.

            ✅ Improved traceability systems for quality control

            ✅ Better choices enabled by digital factory solutions and dashboards

            ✅ Smooth interaction with current industrial automation and control systems

             

            The Future is Smart, The Future is sfHawk

            The markets of the future will be dominated by manufacturers who adopt smart manufacturing solutions and smart factory automation today. With sfHawk, you can monitor, predict, optimize, and control your production like never before.

             

            Your machines have tales to tell. Are you prepared to hear sfHawk out? Need a Custom Solution for Your Factory?

            Reach out to:

            👤 Nirav Lad Sr. General Manager – Sales

            📱 +91 91120 98351

            📧 nirav.lad@sfhawk.com

            🌐 www.sfhawk.com 📍 sfHawk Solutions Pvt. Ltd. Unit 103, Supreme Headquarters, Above Tata Showroom, Baner, Pune, Maharashtra 411045

            Industry 4.0: Opening the Door with the Integration of AI and Machine Learning in Manufacturing

            12 Sep, 2025

              AI and machine learning are quickly developing into the basis of smart manufacturing solutions in the new norm of Industry 4.0 technology. These capabilities are enhancing how manufacturers anticipate maintenance needs, improve efficiency, and optimize operations. Today, AI and ML are more than just trends; They are powerful instruments facilitating change on the production floor. This piece will explore how innovations such as real-time production monitoring systems, predictive maintenance, and OEE (Overall Equipment Efficiency) improvements are transforming the manufacturing industry. We will also examine how advancements such as industrial IoT solutions, tooling machine monitoring systems, and CNC machine monitoring software are paving the way for a smarter and more efficient future. AI and Machine Learning: The Heart of Smart Manufacturing  Machine learning and artificial intelligence are aiding the transition from traditional manufacturing settings to smart factories. These technologies enable the implementation of real-time and real data intelligent manufacturing solutions. Incorporating machine learning allows manufacturers to gain insights on machine behavior and operational efficiency.  At the core of this technology are real-time production monitoring systems. These systems interface and directly connect to CNC machines and various machines monitoring systems, supplying machine-level data on performance in real-time. This enables shop floor operators to remotely manage machines so they can recognize potential bottlenecks and optimize production in a timely manner.  Businesses can track and improve machine performance with OEE tracking and monitoring tools. These tools examine a machine’s availability, performance, and quality, enabling manufacturers to improve their OEE monitoring systems and throughput. These systems can then be integrated with intelligent tools so performance is predicted, and they can turn off machines to minimize system downtime. Predictive Maintenance: Staying Ahead of Machine Failures  Predictive maintenance stems from and utilizes the immense capabilities of AI and ML technologies. Predictive maintenance is an AI-based approach for calculating maintenance and breakdown downtime. Leveraging AI for maintenance requires the AI systems to have access to the machine condition monitoring system. AI systems have access to the observations derived from the CNC tool life monitoring software and the spindle load analysis monitoring tool.  Machine Condition Monitoring Systems improve on predictive maintenance by employing AI analysis on real-time conditions and dynamically adjusting the predictions aligned with the real-time variables of the system. IIoT predictive maintenance solutions are a necessity for any industry that relies on CNC automation.  An operator’s remote machine monitoring allows them to ascertain that the machine is operating as desired even when the operator is not physically on the shop floor. The real-time condition monitoring of the machine and the machine health monitoring systems provide the information needed to make timely and informed decisions on the maintenance schedules, which ultimately increases productivity and cost savings.  Real-Time Monitoring: Optimizing Efficiency Across the Shop Floor  Keeping track of real-time information in a manufacturing culture is a must. Real-time machine condition monitoring systems as well as real-time monitoring of production systems provide information to manufacturers concerning the performance of their machines. These systems monitor the functioning of all the machines in the production line and all the processes associated with the machines to ensure that all machines are optimally functioning.  CNC machine monitoring software is just one example of systems designed to track a machine’s performance. AI systems evaluate performance and provide information to operators to enable corrective action to be taken on performance or efficiency blockages. With the integration of production monitoring systems to OEE monitoring systems, improved decision-making, reduced downtime, and increased productivity are captured.   Manufacturing of other shop floor machines, such as VMC and HMC machines, also falls under and is not omitted in this type of monitoring. The overall comprehensive performance of the factory is increased by AI and ML systems, which provide predictive maintenance and ensure machines are always operating at peak. IIoT solutions set manufacturers ahead of schedule by avoiding expensive unscheduled downtimes. The Future of Manufacturing: A Unified, Data-Driven Approach  The integration of advanced technologies, such as AI, ML, and IIoT in smart factories, transcends automation, integrating intelligent manufacturing techniques and automation of broader industrial control systems, enabling manufacturers to create more flexible and efficient production lines.  As smart factories become more prevalent, systems like AI, ML, and machine control centers (MCC) will help integrate real-time data to process and augment advanced algorithms, perform predictive maintenance, and create an intelligent structure to scale parameters of the entire production line to ensure optimal conditions.  Focusing on the construction of cohesive digital control systems, the emergence of digital factory software and solutions consolidates the control of factory dynamics, allowing businesses to oversee the entire process from one place to enhance efficiency. Metrics from individual systems, such as milling tools, predictive maintenance, and spindle load monitors, are combined to ensure the factory dynamics function as a cohesive system.  Also, Industrial IoT predictive maintenance systems will enable manufacturers to monitor equipment and production lines in real time. Conclusion:   AI and ML in Manufacturing – The Future is Here AI and machine learning are today being implemented in manufacturing procedures; they’re not just a future proposition. As the Fourth Industrial Revolution unfolds, AI and ML are quickly becoming the legacy and foundational building blocks for intelligent manufacturing solutions. These advancements in technology will alter the way manufacturers view maintenance requirements, optimize productivity, and ensure operational efficiency. Today, AI and ML will be reconfiguring tools for change at the production level. 

              Connect with us @inquiry@sfhawk.com www.sfhawk.com +91 9112098351

              Successfully embracing Industry 4.0: don’t forget the people aspects!

              18 Jan, 2025

                Introducing Industry 4.0

                The term “Industry 4.0” refers to the many ways in which manufacturing companies (both OEM players and their suppliers) can improve productivity, quality, cost-efficiency and flexibility of their production facilities on the basis of actionable insights harvested from analysis of real-time data. “Smart factories” with cyber-physical systems and high levels of “intelligent automation” are a key element of Industry 4.0; adoption is expected to transform industrial value chains worldwide.

                Another key premise of Industry 4.0 is that actions must be triggered by real-time data, relying less on predictive models or human judgment. Put differently, supervisors and factory managers will need to rely more on data points gathered from machines instead of relying on an experienced shop floor worker saying “It’s time to replace this tool because it looks worn out” or “The toolhead has run for X hours, which is when the manufacturer recommends replacement”.

                Addressing people aspects is crucial to realizing the benefits of Industry 4.0

                A manufacturing enterprise adopting Industry 4.0 well will derive substantial benefits. But as in the case of most transformation programs, a lot of attention is paid to the “hard” aspects- investments in shop floor automation, process redesign, information technology etc. But what will be crucial is how well companies handle the “soft aspects”. Technology can give your business data and insights. But what you do with those insights is what will make a real difference- and that ultimately depends on your people. This is an important point to keep in mind for companies in the manufacturing sector on journeys to adopt “Industry 4.0” ways of thinking and doing.

                If the mindset of workers, supervisors and factory managers is not changed, they will continue to work in old ways- and that will lead to sub-optimal results. Imagine printing out e-mails, dictating responses and having a secretary type it back as an e-mail! (Yes, we all know people who actually did this 25 years ago, but it is unthinkable in today’s context).

                How successful your enterprise will be in harnessing achieving the transformative potential of Industry 4.0 will depend significantly on how well you implement these “people actions” in your shop floor or factory:

                • Starting the process of mindset change before implementation begins; explaining why and how this is a better way of working and is not meant to cut down staff.
                • Train operators on the new ways of working; explain that the way they operate the tool or machine will not change, but that they will need to pay attention to alerts triggered by the solution.
                • Explain that the data will supplement their own judgment- rather than mistrust hard data, encourage them to “compete” and see if their judgment and experience are supported by the data. Get them to act on the basis of data-driven alerts and not assume false positives because they don’t “feel” that the alert is reliable.
                • Manage fears of job losses due to higher levels of automation by highlighting how superior quality and productivity has the potential to open up revenue opportunities, in turn creating demand for more workers.
                • Build trust not just with operators but also with others in the ecosystem (e.g., suppliers), so they too understand how much more important it is for them to supply quality materials or components on time.
                • In the new landscape where a lot more data is generated, captured and stored by cyber-physical systems, employees must be trained to be extra vigilant about use of unauthorized pen drives etc.
                • This kind of transformation is not just about shop floor staff; HR must sensitize managers and leaders on how governance, goals and even their roles will change in the new environment. They may need to be trained on emotional intelligence, communication, goal-setting, giving feedback etc.
                • Policies relating to performance management, rewards etc. will need to be redefined.

                Here are three specific tips to help your organization reap the benefits of embracing Industry 4.0:

                • Implement a process to gather stakeholder concerns even after the initial training. Use this feedback to tweak the relevant dimensions of the solution.
                • In every team, designate change agents who address questions/concerns, encourage mindset change and come up with new use cases.
                • Institute a system to reward fast learners as well as employees who suggest new use cases, so that incremental gains can be made.

                Not managing people aspects proactively can derail realization of your ROI targets

                As part of the shift to Industry 4.0, the entire culture of the organization will undergo a change. Employee resistance to the new ways of working can delay the time it takes to realize productivity gains and/or cost reductions. Opportunities for higher revenue may be lost due to production delays caused by longer setup times, higher defect rates, or inefficient inventory management. To minimize the risk of the expected ROI not being realized, leaders must consciously pay attention to the people and culture aspects of the transformation.

                Choosing the right IoT solution for your factory need not be a struggle

                18 Jan, 2025

                  Selecting software solutions for a business enterprise has always been a difficult decision for many reasons, including the following:

                  • Stakeholders may not understand the technology aspects, or appreciate how the solution will tangibly improve competitive advantage (i.e., reduce costs or time to market, improve collaboration, decision-making or operational excellence, get closer to customers etc.).
                  • The existing technology landscape may impose certain constraints, which, if not considered before the decision is made, may lead to additional costs and/or delays in implementation.
                  • In-house teams may be unfamiliar with newer technologies, and hence end up relying on the vendor’s assertions and assurances to a much higher degree than desirable.
                  • The solution may not possess all the functionalities the enterprise needs.
                  • Users may resist using the software because it represents a major shift from their zones of comfort. Inadequate training of users before roll-out may increase resistance.
                  • In the absence of clear business goals that the software is expected to deliver, assessing ROI and project success becomes much harder and more subjective.

                  The above apply just as much to large companies as to MSMEs. And they are as relevant for selecting factory-level IoT solutions to drive your company’s Industry 4.0 strategy as they are to selecting other functional solutions.

                  Based on our experience of working with manufacturing companies, here are some tips for you, as a decision-maker or influencer in selecting IoT solutions for your factory, to ensure that you do, in fact, select the best available solution.

                  • Do not fear IoT because it is a new concept or captures data from non-computers. Remember that CNC machines today probably have as much processing power inside them as computers did at the turn of the century.
                  • Start with a clear overall vision of where you want your business to be in say, 5 years, including what role your manufacturing facilities and “Industry 4.0” will play in getting there. Articulate how far you want to go on the “Industry 4.0” journey in the next 3 years or so. This vision must be clearly-articulated and must be signed-off by the C-suite.
                  • Identify specific outcomes you seek and map them to available solutions before selecting one. Working with use cases can give you a more realistic basis to assess “fit” of a solution with your objectives and vision.
                  • IoT adoption need not be long-drawn, expensive projects. Start small, and scale up gradually.
                  • All else being equal, select solutions that are more intuitive to understand and easier to use; this will enhance adoption by various stakeholders. But make sure that the architecture is flexible and the solution is built using modern technology.
                  • Right from the start, assess the solution for scalability, ease of implementation (including likely disruption to operations)and data security (including where data will be stored).
                  • Based on agreed priorities within the company and factory, implement solution pilots for one or two specific use cases. Use these pilots to iron out wrinkles such as enhancing buy-in (especially amongst supervisors and workers), refining performance metrics and what data points will objectively help in measurement, and setting up protocols to use the alerts that the pilot solution will throw up.
                  • Based on how well the solution is able to deliver on the promised outcomes, assess its scalability across your other assembly lines and factories. Implementing multiple IoT solutions will only complicate matters.
                  • Share the results with all the stakeholders, including workers. If the outcomes are not as expected, work with the solution provider to analyse root causes and work with the relevant stakeholders to ensure that they are fixed. Identify “champions of change” in every line and shift, who are jointly accountable for improving outcomes.
                  • The pricing aspect of solutions is important too. Be willing to try innovative pricing models such as pay per piece or outcome based- e.g., a lower fixed price combined with a % of the money saved.
                  • Plan for user training in collaboration with the vendor. Involve experts from the vendor organization for the actual training so that changes to the implementation can be made if necessary to simplify things for users.

                  Successfully implementing IoT solutions depends on more than just the right technology investments. Realizing the targeted benefits depends on the human element- creating a conducive workplace culture, promoting buy-in amongst all stakeholders and frequent, open communication.

                  We’d love to hear about your IoT adoption journeys, so do share them via comments or write to us.

                  Improving your Machine Uptime with sfHawk

                  17 Jan, 2025

                    Enhancing Machine Uptime with sfHawk: A Smart Factory Solution.

                    In the fast-paced world of manufacturing, machine uptime is a critical factor that directly impacts productivity and profitability. Every minute a machine is down, your production schedule, efficiency, where sfHawk comes in—a smart factory solution that not only enhances machine uptime but also optimizes overall equipment effectiveness (OEE), production quality control, and machine productivity.

                    The Importance of Machine Uptime

                    Machine uptime refers to the amount of time that a machine is operational and capable of performing its tasks without interruptions. High uptime is synonymous with high productivity, as machines are kept running smoothly and efficiently, reducing the need for costly repairs and minimizing delays in production. However, achieving consistent machine uptime requires a sophisticated approach to machine monitoring and maintenance.

                    How have Smart Factories helped in the US?

                    Over the past decade, the manufacturing landscape in the United States has undergone a significant transformation, largely due to the adoption of smart factory solutions. These technological advancements have led to remarkable improvements in machine uptime across various industries.

                    A notable 2021 report by Deloitte shed light on this trend, revealing that manufacturers who implemented Industrial Internet of Things (IIoT) solutions experienced substantial benefits. These solutions, which include real-time monitoring and predictive maintenance capabilities, resulted in an impressive reduction in downtime – up to 25% in some cases.

                    The impact has been particularly pronounced in sectors where machine uptime is crucial, such as automotive and aerospace. In these industries, companies leveraging smart factory technologies observed a 15% increase in overall equipment effectiveness (OEE). This metric is a key indicator of production efficiency and reliability.

                    What’s driving these improvements? The answer lies in the integration of cutting-edge technologies. Advanced sensors, artificial intelligence-powered analytics, and cloud platforms work in tandem to provide real-time insights into machine performance. This allows for proactive interventions, effectively minimizing unplanned failures and optimizing production processes.

                    In essence, these smart factory solutions are revolutionizing the way manufacturers approach machine maintenance and productivity. By enabling data-driven decision-making and predictive capabilities, they’re helping industries stay ahead of potential issues and maintain peak operational efficiency.

                    How sfHawk Boosts Machine Uptime

                    sfHawk’s cutting-edge machine monitoring system offers real-time insights into your machines’ performance. By continuously tracking and analyzing critical parameters such as machine health, operator efficiency, and tool conditions, sfHawk helps prevent unexpected downtimes and enhances productivity.

                      1. Predictive Maintenance: With sfHawk’s smart sensors and data analytics, you can implement predictive maintenance strategies that forecast potential machine failures before they occur. This proactive approach significantly reduces unplanned downtime, ensuring that your machines stay operational longer.
                      1. Real-Time Monitoring: sfHawk provides live updates on machine status, allowing you to address issues as they arise. This real-time visibility into your shop-floor operations means you can take immediate action to resolve any potential problems, ensuring maximum uptime.
                      1. OEE Optimization: Our platform is designed to optimize OEE by balancing machine availability, performance, and quality. By improving uptime and reducing cycle times, sfHawk enables your factory to achieve higher OEE, translating into more efficient production and better quality control.
                      1. Improved Production Quality Control: Uptime isn’t just about keeping machines running—it’s also about maintaining consistent production quality. sfHawk’s intelligent monitoring ensures that machines are operating within optimal parameters, minimizing the risk of defects and ensuring that your products meet the highest standards.

                    Predictive maintenance with sfHawk

                    sfHawk offers a comprehensive preventive maintenance solution designed to optimize machine performance and reduce downtime in manufacturing environments. This system integrates several key features to provide a holistic approach to equipment maintenance and monitoring.

                    At the heart of sfHawk’s solution is a central dashboard that offers both overview and detailed insights into maintenance tasks across all machines. This dashboard provides real-time visibility into completed and pending maintenance activities, allowing managers to quickly assess the maintenance status of their entire fleet. Users can easily track how many maintenance tasks have been performed on each machine and identify any overdue or upcoming tasks, ensuring that no critical maintenance is overlooked.

                    The system also incorporates advanced sensor and temperature monitoring capabilities. By continuously tracking various parameters, sfHawk can detect anomalies or trends that might indicate potential issues before they escalate into major problems. This proactive approach helps prevent unexpected breakdowns and extends the lifespan of equipment.

                    Another crucial feature is spindle load monitoring. This functionality is particularly valuable for CNC machines and other equipment where spindle performance is critical. By monitoring spindle load in real-time, sfHawk can alert operators to potential overloading or underperformance, helping to maintain optimal cutting conditions and prevent premature wear or damage.

                    Key pointers:

                      1. Central Dashboard:
                        1. Provides overview and detailed views of maintenance tasks
                        2. Shows completed and pending tasks for each machine
                        3. Enables quick assessment of fleet-wide maintenance status
                      2. Sensor and Temperature Monitoring:
                        1. Continuous tracking of various machine parameters
                        2. Early detection of anomalies and concerning trends
                        3. Helps prevent unexpected breakdowns
                      3. Spindle Load Monitoring:
                        1. Real-time monitoring of spindle performance
                        2. Alerts for potential overloading or underperformance
                        3. Maintains optimal cutting conditions and prevents premature wear

                    These features work together to create a robust preventive maintenance system, helping manufacturers minimize downtime, optimize machine performance, and extend equipment lifespan.

                    Why Choose sfHawk?

                    sfHawk isn’t just a machine monitoring system—it’s a comprehensive smart factory solution that empowers you to take full control of your production floor. By enhancing machine uptime, optimizing OEE, and improving production quality control, sfHawk helps you unlock new levels of efficiency and productivity.

                    In a competitive manufacturing environment, every second counts. With sfHawk, you can ensure that your machines are performing at their best, your production processes are streamlined, and your business is always ahead of the curve.

                    Conclusion

                    In today’s fast-paced manufacturing environment, every second of machine uptime counts. With sfHawk’s advanced smart factory solutions, you can minimize downtime, improve productivity, and stay ahead of the competition. Whether you’re aiming to boost your Overall Equipment Effectiveness (OEE) or enhance production quality, sfHawk gives you the tools to take full control of your operations.

                    Don’t wait until the next unexpected breakdown costs you time and money. Get in touch with our team today to schedule a demo and see how sfHawk can revolutionize your factory’s performance. Let’s work together to ensure your machines are always operating at their peak.

                    References:

                    https://www2.deloitte.com/content/dam/Deloitte/de/Documents/deloitte-analytics/Deloitte_Predictive-Maintenance_PositionPaper.pdf https://www.mckinsey.com/capabilities/mckinsey-digital/our-insights/a-manufacturers-guide-to-generating-value-at-scale-with-industrial-iot

                    State of adoption of Industry 4.0 in India

                    17 Jan, 2025

                      Time flies! It’s ten years since the term “Industry 4.0” was first used by the German government to articulate its strategy to enhance the competitiveness of the country’s manufacturing industry. The concept gathered momentum after it became a key theme at the World Economic Forum in 2016. Adoption in India has been slow thus far, but that will change soon.

                      The rise of Industry 4.0

                      The last decade also witnessed the emergence and maturing of a wide range of digital technologies, computing capabilities and application areas. These include AI and Machine Learning, Robotics, 3D Printing, Data Sciences and Analytics, Cloud, IOT, Augmented Reality etc. While data processing and computing capabilities have grown exponentially, unit costs have decreased just as rapidly.

                      It is the confluence of the above-mentioned trends that has led to the thinking behind Industry 4.0 and its cousins, “digitalization” and “4th Industrial Revolution”, make its way into the C-suite and documented strategies of many companies worldwide. In India too, I4.0 has started gathering momentum in the last couple of years, although the rate of adoption is still relatively slow.

                      Indian companies too will increase the pace of I4.0 adoption in the next year or two as a result of both internal and external imperatives. For instance, in the automotive industry, as global players embrace I4.0, India-based suppliers will need to ensure that they keep pace with rising expectations around traceability requirements and quality norms. In addition to improving asset utilization, IoT solutions can also help companies address the challenge of shrinking supplies of skilled human resources for shop floors and assembly lines.

                      As companies face a squeeze on margins (something that the ongoing pandemic has further compounded), the competitive pressure to reduce costs sustainably will only increase. In industries such as manufacturing, logistics and construction, adopting Industry 4.0 paradigms will help cut down waste, improve productivity and reduce carbon footprint.

                      Adoption in India remains limited

                      There is reasonable awareness amongst Indian manufacturing companies around how Industry 4.0 will be a game-changer for early adopters as well as adoption intent.

                      The government of India too has taken steps to encourage adoption of I4.0. In addition to an enabling framework, the Department of Heavy Industries has set up Samarth Udyog Bharat 4.0 (Smart Advanced Manufacturing and Rapid Transformation Hubs) to create awareness and propagate an ecosystem of technology solutions. The rollout of 5G communication protocols in the next year or two is further expected to accelerate the shift, as it will make the use of IIOT more viable and more efficient. However, actual activity towards adoption remains constrained by many factors such as these:

                      • Limited understanding of Industry 4.0 and its value as an important step towards long-term transformation of the entire business (and not just from an operations angle);
                      •  Inadequate clarity around the expected business value and prioritization (based on what problems need to be solved);
                      • Appreciation of dependencies caused by existing systems, architectures, and availability of good quality data of the desired granularity;
                      •  Concerns around data security;
                      •  Lack of a detailed plan and a well thought out long-term roadmap; and perhaps above all,
                      • The perception that adoption of Industry 4.0 solutions is necessarily a large and complex program that requires massive investments (with unclear RoI). This reinforces the belief that I4.0 is only for the larger companies or those that have deep pockets- something that is erroneous.

                      In recent days, we at sfHawk are seeing a perceptible shift in gears. Large players as well as SMEs are engaging more willingly and with higher levels of seriousness than before, to understand how Industry 4.0 solutions can help them. The scope of our conversations with automotive OEMs and auto component suppliers has expanded from production monitoring or OEE improvement to enabling traceability, tool cost optimization and predictive maintenance.

                      Manufacturing companies may not always possess the required levels of technical expertise to efficiently integrate Industry 4.0 solutions. That is why we at sfHawk encourage companies to articulate their problem statements in the form of easily-understood use cases. We then work with them to provide solutions for those use cases. The value is demonstrated using pilots that can then be scaled up. We believe that companies must look for solutions that, in addition to addressing their immediate needs, are scalable to address future needs as well.

                      We know that large-scale shifts such as adoption of Industry 4.0 paradigms are disruptive to the culture of the organization. This is especially true for manufacturing businesses in India, where there has been long-standing distrust between owner-managers and workers. Adopting the right Industry 4.0 solutions will lead to a reduced dependence on human judgement. This reduces the risk of human errors of omission or commission that, in turn, increase setup time or material wastage. However, if the buy-in of workers is not gained by explaining the rationale for embracing I4.0 and benefits to all stakeholders, adoption will only become more difficult. This is an important aspect that business leaders must factor into their plans to embrace I4.0.

                      If you have additional insights to share based on your I4.0 experience, we’d love to know: please post a comment or write to us.