Torque Measurement, Control and Calibration

Universal Torque Wrench Calibration Machine

Photo above shows UTWCM with AWS Intelligent Inline Torque Transducers, Professional Transducer Display,
and a Laptop running ADMS Kepler 4 Software for Calibration & Conformity to ISO 6789:2017 Parts 1 and 2.

"Our independence from torque wrench manufacturers, and detailed knowledge of the marketplace, has enabled us to develop this truly universal torque wrench calibration machine."

The all new AWS Universal Torque Wrench Calibration Machine (UTWCM) provides an efficient means of calibrating and testing manually operated torque wrenches to international or company specific standards and specifications.

The UTWCM is available in two versions; both apply the force to the tool via a linear carriage stepper motor and an AWS microcontroller. An important feature is the minimization of parasitic forces applied to the torque wrench handle. Both machines can be used with our new AWS/ ADMS Kepler 4 software to speed up completion of the calibration & certification process to ISO 6789:2017, ISO 6789:2003 or type approval for manufacturers.

  • The semi-automatic UTWCM relies on the operator to detect the target torque and stop the machine.

Shared Features:

  • Designed to calibrate/test wrenches up to 2,500 Nm and equivalents.
  • Removes the need for operators to apply high loads on large torque wrenches. Force is applied using inbuilt AWS proprietary firmware, a stepper motor and linear track system. 
  • Hand controls for fast movement or jog facilitate quick setting up of individual wrenches in the machine.
  • Inbuilt microcontroller for accurate control of load applied and operation speeds. Four different speed settings for different ranges of tools. The microcontroller also ensures the adherence to the minimum target torque approach times, complying to the ISO standard, for the capacity of wrench being calibrated.
  • Multiple safety features ensure that the machine, transducers and torque wrench are not overloaded in operation or over driven due to a wrench fault.
  • Parasitic forces acting on the wrench during calibration are greatly reduced by the method of mounting the torque wrench.
  • Multiple or single transducer cassette variations for different transducer manufacturers are available or built to suit customer requirements.
  • To accommodate wrenches with fixed heads the transducer mounts in our carraiges can be rotated 360 ° in steps of 30°.
  • Used in collaboration with the AWS/ADMS Kepler 4 software for torque wrenches speeds up completion of the calibration or certification process to ISO 6789:2017.
  • An optional Transducer Switch Box keeps AWS IITTs powered up continually, allowing quick changeover between transducers.

Automated Features: 

  • A Customer’s existing transducers can be converted into IITTs using AWS’s Intelligent Instrumented Transducer Cables. Each cable has an inline module converting the analogue output of the transducer into a digital torque signal for display on the PTD.
  • When an AWS IITT is connected, it automatically programs the AWS PTD to the correct range.
  • When operating the AWS PTD in First Peak mode for click wrenches, the machine will run a complete operation automatically.




Dimensions for mounting on benches/ tables:

  • Approximately 77cm D by 205cm W by 135cm H.
  • Footprint is approximately 77cm D by 120m W.
  • Depth, Width and Height can be altered within certain parameters.