Universal Torque Wrench Calibration Machine (UTWCM)

The AWS Universal Torque Wrench Calibration Machine provides an efficient, fast and automated means of calibrating and testing manually operated torque wrenches to ISO 6789:2017 or company specific standards and specifications, with minimal operator input required.

® 6169133 | ® 6169134

Video Demonstration

Small torque wrench being calibrated by a machine

Automatic Operations

The automated version of the UTWCM uses the AWS Kepler 4 Software to control the calibration for type 2 click type torque wrenches. The operations are performed automatically, with the user only needing to adjust the torque wrench when required by the chosen standard.

You can read about the benefits of automated operation for your torque calibration setup here.

Automatic Display Setting

When using the automated version of the Universal Torque Wrench Calibration Machine for calibrating a type 2 click type torque wrench, the target torque, upper limit, lower limit, units of measure, direction of operation and speed of operation are set automatically based on the selected information in Kepler 4.

Red torque display with a blue screen
3 different torque wrenches being calibrated on a Universal Torque Wrench Calibration Machine

Calibrate All Brands and Types of Hand Torque Wrenches

Our independence from torque wrench manufacturers and detailed knowledge of the marketplace, has enabled us to develop this truly Universal Torque Wrench Calibration Machine, able to calibrate any hand torque wrench regardless of manufacturer, type or class.

The torque wrench calibrator is able to calibrate manually operated Click, Cam and Indicating type torque wrenches.

The long cross bed travel on the calibrator allows for easy tool alignment and for cam type torque wrenches to be calibrated on the machine.

To accommodate torque wrenches with fixed heads, the torque transducer mounts in our carriages can be rotated 360° in steps of 30°.n steps of 30°.

Minimal Operator Input

With the calibration procedure and digital setup of the automated Universal Torque Wrench Calibration Machine being controlled by Kepler 4, the operator input required to complete the calibration is minimal. This minimises the risk of operator error in the calibration procedure, improving the repeatability of the calibration.

Automatic data entry from the Professional Transducer Display into Kepler 4 eliminates possible operator data entry errors.

The automatic speed control feature of the automated Universal Torque Wrench Calibration Machine ensures compliance with the ISO 6789:2017 standard.

The automatic limits setting of the automated Universal Torque Wrench Calibration Machine reduces the risk of damage to the torque wrench or calibration equipment due to incorrect operator input.

Norbar torque wrench in a Universal Torque Wrench Calibration Machine
Universal Torque Wrench Calibration Machine in front of Blue Background

Comply to International or In-House Standards

The microcontroller ensures the torque wrench calibrator adheres to the minimum target torque approach times for the capacity of the torque tool being calibrated, as required by the ISO 6789:2017 international standard for manual torque tools.

Available in 3 Ranges

The Universal Torque Wrench Calibration Machine is available in 500Nm, 1500Nm and 3000Nm ranges. Each range can be supplied with automated operation or semi - automated operation to meet your requirements.

Bench Mounted or Free Standing

The 500Nm version of the Universal Torque Wrench Calibration Machine is desktop / bench mounted for space saving, whilst the 1500Nm and 3000Nm versions are free standing.

The torque display is height adjustable to allow it to fit in with your surroundings.

Small Norbar Torque Wrench in a torque wrench calibrator
Colourful chart of torque deviations

Consistency In Every Operation

The automated, powered operation of the calibrator provides consistent and repeatable operation every time, allowing for your torque readings to be a more accurate representation of a tool's performance.

In a test of repeatability, three different torque wrenches were operated ten times by hand, and ten times by the UTWCM, with careful emphasis placed on ensuring the drive position of the torque wrench compared to the torque transducer interface remained consistent between the tests.

The mean torque reading was then calculated using the ten results from each method of operation, with a deviation from the mean torque reading being calculated for each result. A range of this deviation is then calculated, with smaller deviations signifying more consistent results. 

33% Faster Operation

Due to the automated operation of the torque wrench calibrator, typical torque wrench calibration time to ISO 6789:2017 is only 60 minutes, 33% faster than manual methods.

Due to the potential for faster throughput of torque wrenches through your laboratory, Return on Investment can be as short as just 7 months!*

* Based on approximate cost of Semi-Automated UTWCM, 6 calibrations per day, £60/hour hourly rate

Norbar torque wrench being calibrated in a UTWCM
Universal Torque Wrench Calibration Machine Handheld Pendant Controller

Easy Controls

The handheld pendant controller allows for the torque wrench calibrator to run via semi-automated operation at the press of a button.

The jog joystick eases the quick setting up of individual wrenches within the torque wrench calibrator.

The automated and semi-automated versions of the Universal Torque Wrench Calibration Machine detect a first peak signal for setting type wrenches, stopping the tool and returning to zero automatically.

The dial on the handheld pendant controller allows the user to have accurate control of force applied and operation speeds in semi-automated operation to maintain compliance with ISO 6789:2017.

Reduce Parasitic Forces

The Universal Torque Wrench Calibration Machine places special emphasis on the minimisation of parasitic forces applied to the handle of the torque wrench during a tool's calibration, increasing the accuracy of your results.

During operation, the handle of the torque wrench is held in a position such as it would be in general use in the field.

Close up of a torque wrench applying torque to a transducer in a calibration machine
Person using a torque wrench calibrator via a Handheld Controller

Simple Operation

The Universal Torque Wrench Calibration Machine is designed to simplify the process of completing torque wrench calibrations to ISO 6789:2017, making it far easier to fill the gaps left by staff annual leave or sickness and continue the fast throughput of torque wrenches through your laboratory.

The torque wrench calibrator works with the Professional Transducer Display to run automatically for setting type wrenches, reducing necessary operator input, effort and skill.

A manual and prompt cards are provided with the calibrator to aid technicians.

AWS staff can guide you through the setup process, as well as first time use to ensure you can get up and running quickly.

AWS Torque Transducers or Your Existing mV/V Transducers

The highly accurate AWS Intelligent In-Line Torque Transducers are used with the Universal Torque Wrench Calibration Machine. They have inbuilt instrumentation to eliminate connecting cable influence, and come in optimised torque ranges to remove the need to change transducers mid torque wrench calibration.

The AWS Intelligent In-Line Torque Transducers can be interchanged between the AWS Universal Torque Wrench Calibration Machine and Universal Torque Screwdriver Calibration Machine, meaning you don't need to buy two torque transducers of the same range when creating your torque tool calibration facility.

Alternatively, the AWS Intelligent Instrumented Transducer Cable allows you to convert your current mV/V transducers from any manufacturer into truly intelligent digital transducers to be used with the torque wrench calibrator.

AWS Inline Torque Transducer and Intelligent Cable
Torque wrench calibrator controller showing switches, dials, joysticks and buttons

Clockwise and Counter Clockwise Operation

The Universal Torque Wrench Calibration Machine can be operated in both the clockwise and counter clockwise directions, allowing for dual direction calibrations of a variety of torque wrenches on the machine.

Low Maintenance, Reliable and Quiet

The ISO 6789:2017 compliant Universal Torque Wrench Calibration Machine peaks at just 55dB during calibration and needs little maintenance to run reliably so you can keep your technicians focussed on performing calibrations.

Someone checking the volume of a torque wrench calibrator in db

Multiple Safety Features

User changing the torque limits on a torque display

Overload Prevention

The Upper Limit stops the calibrator if 110% of the transducer maximum load is detected. This torque setting can also be manually set to lower values.

Torque wrench calibrator Handheld Yellow and Red Button

Stop Button

Pressing the red button on the handheld will stop the calibration machine from operating.

Red Emergency Stop Button on a torque wrench calibrator

Emergency Stop

Easily accessible emergency stop button to stop the calibration machine at any stage of the operation.

Travel Limit Sensor on a torque wrench calibrator crosstrack

Travel Limit Sensors

Travel limit sensors will stop the calibration machine from travel over-running.

Three blue torque transducers lined up in a row

Transducer Protection

If the transducer you have selected for operation is too small for the capacity of the torque wrench under test, the automated version of the UTWCM will not run until a suitable transducer is selected.

Torque calibration software with a pop up warning

Pause Button

The pause button within Kepler 4 allows you to stop and resume a calibration if your attention is required elsewhere in the laboratory.

Close up of a torque wrench drive in a torque transducer

Pop Up Protection

Concerned about pop ups on your laptop affecting the automated UTWCM calibration process? The calibrator will continue operating as normal with Kepler 4 running in the background.

Automated vs Semi Automated vs Powered Versions

All ranges of the Universal Torque Wrench Calibration Machine are available in Automated, Semi Automated and Powered Versions.

  • Automated

    For use with AWS equipment, click type operations performed automatically.
  • Uses the AWS Intelligent Inline Torque Transducers (IITTs) and Professional Transducer Display (PTD), or other manufacturer's torque transducers with the AWS Intelligent Instrumented Transducer Cables.
  • Torque wrench calibrator is operated via the AWS Kepler 4 Software for click type torque wrenches, and the handheld pendant controller for cam and indicating torque wrenches.
  • Click type torque wrench calibrations are performed automatically, with the user only needed to adjust the torque wrench when required by the standard.
  • For click type torque wrenches, the direction of operation, speed of operation, units of measure, target torque, upper limit and lower limit are set automatically on the PTD.
  • Removes the need for operators to apply high application forces to the handle of torque wrenches.
  • Force is applied using inbuilt AWS proprietary firmware, a stepper motor and linear track system.
  • When connecting an Intelligent Inline Torque Transducer, the upper limit is automatically programmed to protect the torque transducer.
  • Semi Automated

    For use with AWS equipment, all operations performed using the handheld controller.
  • Uses the AWS Intelligent Inline Torque Transducers (IITTs) and Professional Transducer Display (PTD), or other manufacturer's torque transducers with the AWS Intelligent Instrumented Transducer Cables.
  • Torque wrench calibrator is operated via the handheld pendant controller by pressing the yellow button before each operation.
  • Detects a first peak signal for click type torque wrenches, stopping the calibrator and returning to zero.
  • Removes the need for operators to apply high application forces to the handle of torque wrenches.
  • Force is applied using inbuilt AWS proprietary firmware, a stepper motor and linear track system.
  • When connecting an Intelligent Inline Torque Transducer, the upper limit is automatically programmed to protect the torque transducer.
  • Powered

    Requires other manufacturer's torque transducers and display
  • Requires other manufacturer's torque transducers and display
  • Torque wrench calibrator is operated via the handheld pendant controller
  • Removes the need for operators to apply high application forces to the handle of torque wrenches.
  • Force is applied using inbuilt AWS proprietary firmware, a stepper motor and linear track system.
  • Relies on the operator to detect the target torque and stop the calibration machine

Technical Specification

Rated Torque500Nm, 1500Nm or 3000Nm
Dimensions 500Nm Version110cm Width by 90cm Height. Requires desk space of 70cm wide and 75cm deep. It overhangs the front of the desk by 45cm, and requires 56cm of space above the table.
Dimensions 1500Nm Version77cm Length by 205cm Width by 135cm Height.
Dimensions 3000Nm Version77cm Length by 266cm Width by 135cm Height.
Operating Voltage110 / 230 V AC 50~60 HZ
Spline Drives for Mounting Torque Transducers1/4", 3/8", 1/2", 3/4", 1", 1.5" Female Square Drive
Max Wrench Length 500Nm Version850mm
Max Wrench Length 1500Nm Version1800mm
Max Wrench Length 3000Nm Version2400mm
Cross Bed Travel for 500Nm Version360mm
Cross Bed Travel form 1500Nm & 3000Nm Versions700mm