FAQ
- Are torque wrenches available with spanner end fittings?
Yes, a large range of these torque wrenches are available with a male spigot end to allow a spanner or customised end fitting to be connected for use with torque control
- What is Torque?
Torque is a “turning” or “twisting” force and differs from tension, which is created by a straight pull. However, we use torque to create a tension.
- How does Torque Work?
As the nut and bolt are tightened, the two plates are clamped together. The thread angle in the bolt converts the force applied into tension (or stretch) in the bolt shank. The amount of the tension created in the bolt is critical.
- Why Use Torque Products?
A bolt tensioned properly works at its optimum efficiency and will resist coming undone. However, if the tension is too low, the nut could vibrate or work loose. If the tension is too high (overstretched), the bolt could break. Every bolt has a correct optimum torque/tension figure for each fastening application. It is important to have these figures available so that the end product will be safe, efficient and economical.
- How to Measure Torque?
Torque is the result of multiplying the value of Force applied by the Distance from the point of application.
- How to Care and Maintain Torque Tools?
Store in a clean dry environment in the original storage case.
Return the tool to the minimum torque setting on the scale as this allows the spring to relax thereby keeping the calibration longer - What is a nutrunner?
A nutrunner is an industry name for a pneumatic multiplier because as the name suggests it is used to run nuts on & off a job as well as torque them up in the process. They are also known as Norbar guns.
- Should I use a filter regulator with a nutrunner?
Most definitely. The purpose of the filter regulator and lubricator unit is to filter the supply air, trap any moisture in the air line and lubricate the tool in the process. The FRL unit also serves to set the output torque of the nutrunner which is achieved by adjusting the input air pressure to achieve the output torque as indicated on the calibration chart supplied with the tool.
- What is a hydraulic wrench?
A hydraulic wrench (also known as a hi torque or hy torc tool) is a very powerful torque tool that utilises a hydraulic pump to operate it. The higher the pressure from the pump, the higher the torque output from the hydraulic wrench. Available in square drive or cassette style configuration these are a valuable tool for high torque bolting jobs.
- Do the cassette wrenches come in different sizes?
Yes. The cassettes are available in a range of sizes to suit each of the cylinder sizes. For example a 2000 FtLb hydraulic wrench may have a range of cassettes to suit from 24 – 60 mm. Adaptors are available for some of these sizes to step a large cassette down to a slightly smaller size.
- What sizes do the square drives come in for hydraulic wrenches?
Common sizes range from ¾” up to 2 ½” square drives.
- How often should I calibrate my torque wrench?
The general rule of thumb for a torque wrench is 12 months or 5000 cycles whichever comes first. It should be noted that this also depends on the critical nature for which the tool is being used as well as the working conditions and treatment it receives.
- Can the digital angle torque wrenches be calibrated?
Yes, we have the facilities to calibrate these wrenches in both directions for both torque and angle. All of our torque testers and angle tester are Nata calibrated.
- Do I get a calibration certificate when my torque wrench is calibrated?
Every torque wrench is calibrated to ISO 6789:2003 standards and issued with a Nata traceable calibration certificate as standard to meet the demands of your quality systems.
