Torque Wrench Calibration: A Few Things You Need to Know

Have you ever encountered a situation where you had to tighten a nut or bolt with a lot of force and precision? If you have, then you probably already know how important torque wrenches are in ensuring that bolts or nuts are tightened to the required specifications. However, like all tools, torque wrenches can also lose their accuracy over time if they are not maintained and calibrated regularly. 

Understanding Torque Wrench Calibration

A torque wrench is a precision tool that is designed to tighten bolts or nuts to a specific level of torque. Calibration is the process of ensuring that the torque wrench is measuring force accurately and precisely. It's crucial to understand that torque wrenches are not accurate in measuring force forever. Over time, they can lose their accuracy due to wear and tear, and therefore, calibration is necessary to bring them back to their original level of accuracy.

Types of Torque Wrench Calibration

There are several methods of torque wrench calibration, including mechanical calibration, electronic calibration, and magnetic calibration. Each method involves a different process and equipment. Mechanical calibration involves using a deadweight tester to measure the force applied by the torque wrench. On the other hand, electronic calibration utilizes a digital torque tester that measures the level of torque applied by the wrench. Magnetic calibration, which is less common, uses magnetic field monitoring to set the correct torque value.

When to Calibrate Your Torque Wrench

It's recommended to calibrate your torque wrench regularly to ensure that it measures force accurately and precisely. How often you calibrate your torque wrench depends on how frequently you use it and how you store it. If your torque wrench is stored in a damp place, it's recommended to calibrate it more frequently. Also, if you use the wrench more often, it's recommended to calibrate it every few months.

Importance of Torque Wrench Calibration

Calibrating your torque wrench has many benefits. First, it ensures that the torque wrench is measuring force accurately and precisely, which helps prevent any over- or under-tightening of bolts and nuts. Second, calibration extends the life of the torque wrench by ensuring that it's well-maintained. Lastly, calibration helps comply with industry standards, ensuring that the torque wrench produces accurate results that meet your standards. 

How to Calibrate Your Torque Wrench

Calibrating your torque wrench can be done by professionals or yourself if you have the tools and knowledge. However, it's recommended to have it calibrated by a professional because they have the expertise and experience required. If you do it by yourself, you'll need a torque tester and a calibration certificate to verify the accuracy of the calibration. Calibration involves applying a specific amount of force to the torque wrench and verifying that it's measured accurately by the torque tester.

Reach out to a torque calibration service near you to learn more.