Over time, a wrench’s performance degrades due to the wear and tear of industrial use. Many pieces of equipment are subject to vibrations, repetitious movements and pollutants that can have a negative impact on the accuracy of the torque wrench; calibration readjusts it so that the performance it delivers matches the amount of torque indicated on the gauge or screen. Read More…
Leading Manufacturers
Custom Calibration Inc.
North Haven, CT | 203-484-3707Custom Calibration Inc. specializes in on-site and laboratory calibration which will keep costly equipment downtime to a minimum and maximize your overall productivity. We have over 30 years of experience providing calibration services for mechanical, dimensional, scale, torque, humidity, and many more applications. Our company’s mission is to achieve total customer satisfaction by providing prompt, precise, tailor-made calibration solutions to fit your specific needs.
Calibration Laboratory, LLC
Merrillville, IN | 800-373-1759ISO/IEC 17025:2017 & ANSI/NCSL Z540.3 Accredited Laboratory. Electronic, dimensional, physical and thermodynamic calibrations performed onsite and in our lab. Professional ASQ Certified Calibration Technicians. We support the manufacturing and service sectors including; aerospace, automotive, chemical, electronic equipment, energy, food, industrial, machinery, medical, metal, military, nuclear, pharmaceutical, plastics, and transportation. Free local pickup and delivery. In business since 1977.
Morehouse Instrument Company, Inc.
York, PA | 717-843-0081Morehouse is an experienced leader in force and torque measurement helping to create a safer world. We use our knowledge to provide solutions including accurate measurement data and data analysis software. The goal is to help customers make better measurements which can make the difference between success or failure of everyday technology. We offer ISO/IEC 17025 accredited calibrations accurate to 0.002 percent of applied force up to 120,000 lbf and 0.01 percent up to 2,250,000 lbf.
Thermalogic® Corporation
Hudson, MA | 800-343-4492Since 1971, Thermalogic has been a leading manufacturer of electronic temperature and humidity control and sensors. Here at Thermalogic we work with our clients in a partnership to build a lasting business relationship. All of our products have quick turnaround times, including custom designs, and are thoroughly tested prior to being sent out. At Thermalogic we pride ourselves on our high quality, industrial grade, reliable products. Contact us today to get started!
Strainsert Company
West Conshohocken, PA | 610-825-3310For over 40 years, Strainsert Company has been an industry leader in manufacturing calibration services. Our goal is to provide calibrating services that are thorough and accurate, and we have experience serving a variety of applications.
Sierra Instruments
Monterey, CA | 831-373-0200Sierra provides accurate calibration services for mass flow meters and controllers, insertion thermal flow meters, vortex, and ultrasonic flow meters. With more than 40 years of expertise in gas, air, or liquid flow calibration, you can count on our team to make sure your flow meter operates with efficiency and pinpoint accuracy. We believe in providing personalized and customized service, and doing everything we can to maintain credibility with our clients. To get started, contact Sierra today!
Assurance Technologies, Inc.
Bartlett, IL | 630-550-5000Since 1955, Assurance Technologies has been a leading calibration service provider for tools and gages. We perform instrument calibration, laser alignment, temperature calibration, electronic calibration, hand gage calibration, torque calibration, pressure calibration and much more. ISO/IEC 17025:2005 Accredited.
Control Automation Technologies Corporation
Winston Salem, NC | 336-725-6020A2LA Accredited to ISO/IEC 17025 and with offices in VA and NC, Control Automation Technologies Corporation has provided field instrumentation services since 1989, including calibration, installation, maintenance & start-up. CATLab, CATC's Accredited Laboratory offers Test Equipment Calibrations for electrical, pressure, temperature, humidity devices & more.
Torque Wrench CalibrationCalibration is a comparison between a measurement of a known magnitude and a measurement taken from the wrench that is being calibrated. The difference is observed and then the technician makes the necessary changes and adjustments before measuring again to ensure that the values are identical. The calibration process is important to many industries and companies because the accurate functioning of their torque wrenches is fundamental to their daily operations.
Since torque wrenches are widely used for the correct tightening of nuts and bolts, a torque wrench or other torque tool that incorrectly displays the force may lead to under-tightening which does not provide the proper thread loading or over-tightening which stretches the fastener beyond its limits, causing it to fail.
Torque wrench calibration may take place in a torque lab or onsite. In a torque laboratory, professional calibrators test, repair and adjust torque wrenches and other tools. They service and calibrate torque wrenches to levels of 0.5% to 1% margin of error. A trained technician performs the calibration by attaching a device that is able to produce a correct reading in contrast to the measurement of the torque wrench.
The technician who performs the calibration usually completes a summary report and certificate to show that the torque wrench has been calibrated to industrial and national standards. Another option is to adjust the tools onsite using a system of weights and distances to "teach" the torque wrench what certain measurements are. That is, when a known weight is applied, the wrench can be adjusted to display that measure which it then will use as a reference.
Many mechanics rig up their own systems using a vise and hanging weights. Because torque is the product of force and distance, a torque wrench can be calibrated using a weight that is accurately measured and a known distance. Calibrations are usually performed for the middle of the torque wrench's range and they are usually done within 4% of the exact amount.