In-House Calibration Issues: Getting Expert Help with Your Torque Tools
When purchasing torque tools to help with the fastening of industrial nuts and bolts in commercial setting, such as petrochemical, power generation, or pipeline construction industries, your workers require torque wrenches that perform optimally for every application. However, constant use in such extreme conditions, loads, and stresses can cause the torque tool to apply an inaccurate amount of torque to the fastener. It could apply too much torque and damage nuts or bolts, or too little torque where fasteners fail to have the proper connection.
Periodically, torque tools should be re-calibrated. Torque calibration can bring the tool back to the required torque measurement that is necessary for the specific application it will be used for in its industrial setting. However, there can be many issues with companies relying on in-house calibration services.
In-House Callibration Challenges
One of the reasons many companies wish to perform their own calibration services is that they believe it is more cost effective and easier. They don't have to schedule to have a calibration expert perform the work at a calibration lab. The company can do the work themselves in their own facility by their schedule. They often calibrate tools numerous times, right on the production floor or in the maintenance room, before putting the tool back to work.
However, several issues may arise when calibrating tools in-house. One of the biggest problems is that most companies simply don't have a calibration specialist on staff. Instead, the company will rely on their regular maintenance staff to figure out the calibration measurements for themselves. The information that the maintenance workers rely on may not be up to date, may not be for the torque tools that they have, or may not be accurate if they simply rely on charts and measurements found online.
In addition, the company must invest in its own calibration tools and work environment, which can be very costly. While they may invest in the appropriate calibration and torque testers from reliable manufacturers such as Skidmore Wilhelm, they may not be following the best practices required to use the equipment efficiently. If not using the calibration tool correctly, these issues may occur:
- Over-calibration: when the torque wrench is calibrated too much or too often
- False failure: where the torque tools may register as failing the calibration when in fact the tools are in tolerance
- Used outside specs or intended range: the calibration tool may not be used within manufacturers specifications or for the intended range, as measurements may be inaccurate
- Incorrect calibration for torque tools: when the torque tester is not used at the right calibration standard, specification, or following procedure as the torque wrench is not at the right calibration.
Lastly, not having the right work environment can also negatively impact calibration settings and measurements. If calibration tools are used in places with vibration, elevated temperature, moisture, or dirt and grime, it can affect the calibration tool's operations. This will lead to workers using a torque wrench that has not been calibrated as it could lead to damage to the torque wrench, fasteners, or equipment. The issue may also create an unsafe environment where workers may become injured.
Expert Calibration Services Eliminate Uncertainties
Working directly with companies that provide calibration services, can reduce many of the issues that you will find with in-house calibration work. These companies invest in trained calibration experts who have comprehensive knowledge in a range of torque tools, torque tester equipment, manufacturer specifications, and ISO and NIST standards to provide superior services.
In addition, our excellent partnership with Skidmore Wilhelm allows us to provide best-in-class torque testers and other calibration tools for torque wrenches. Our calibration services also provide clean and prepared testing environments to ensure we obtain the appropriate measurements.
If you are interested in learning more about our calibration services, contact Aztec Bolting Services today.