Number 1 Light Cranes
Manufacturer in Canada
Manufacturer in Canada
Number 1 Manipulator
Manufacturer in Canada
Located in the US? Visit our US branch.
Givens Engineering Inc, London, ON
519-453-9008 | 519-453-0666
Torque Arms
For custom-made and highly engineered torque arms and tool holders, trust Givens Engineering to design and manufacture the torque handling solution to suit your unique needs. Whatever the height, weight or torque required, there are virtually no limitations in terms of the customization we can incorporate into our specially designed torque arms.
TA10 Torque Arm with Complex Toolholder
Torque Arms For Any Application
Torque Arms have 2 roles:
- They are made to absorb the torque that is generated during the process of tightening
- Torque arms provide the necessary lift so that the nutrunner floats at all times on the end of the torque arm, following naturally horizontally and vertically.
At Givens Engineering, all our torque arms are specially manufactured to float on air and are exceptionally easy to maneuver. In general, the arm itself is mass-produced and stocked. The toolholder however, is custom-made for the specific application at hand. The toolholder can be very simple or can be more complex and include brakes or other unique functionalities.
Tilting Toolholder with Brakes
TA5 torque arm with Repositionable Nutrunner
A TA2 torque arm mounted overhead. Toolholder mounts the nutrunner allowing a 360-degree spin.
TA5 torque arm with complex, braked toolholder. Nutrunner can rock left and right from vertical to access screws on a slant.
Torque arm mounted on a mobile base by Givens Engineering Inc.
TA2 with nutrunner mounted in a toolholder that allows a partial rotation.
Torque Arms with Muscle!
In the photos right and below, the nutrunner, created by Givens Engineering, consists of a servomotor and gear reducer that are controlled by PLC and monitored through an HMI. The torque arm rises to a height of 4m on a pneumatic slide and applies a torque of 160Nm (120 ft-lb). The number of rotations and the torque are continuously monitored and logged.
Servomotor Nutrunner
TA5 with servomotor nutrunner mounted in a complex toolholder that pivots from horizontal to vertical.
Servo controls
Trombone close-up, incorporates rotation
TA10 torque arm with “trombone” toolholder
Trombone
converges on both
nut and bolt to fasten
simultaneously.
TA10 with braked, tilting, rotating toolholder
1000Nm (750 ft-lb) of torque! Applied
to large fasteners in a military vehicle.
When you need really serious torque, we
can provide a serious arm.
Torque Arms Features
- Torque arms are made to assist the operator in supporting the weight of the end effector/tooling
- The use of torque arms allows a workload to 'float', therefore there are no up/down pushbuttons required
- Torque arms are lightweight and agile. The axis assemblies are made of anodized aluminium
- Softstops at the first and second axis are adjustable
- Torque arms are clamped to the post, the height can be adjusted
Optional Torque Arm Accessories
- Torque Brakes are available for the first and second axis, to eliminate drift
- Bearing block assemblies are available at the end of the second arm allowing the end effector to rotate
- The parallel arms can be fitted with vertical travel stops
- The STD-TA series can be fitted with encoders to track the position of the tool so that individual torque values can be programmed for every fastener
- Torque Tubes can be used instead of torque arms - when it is necessary to hang a nutrunner from a crane
There are many torque arm models to choose from based on required torque, arm size, payload and typical reach. The chart below demonstrates the differences between the main torque arm models and their unique capacities.
Torque Arm Model Selection
| Arm Size | TA1 | TA2 | TA5 | TA10 | TA20 |
| Torque | 75ft-lb 100N-m | 150ft-lb 200N-m | 370ft-lb 500N-m | 750ft-lb 1000N-m | 1500ft-lb 2000N-m |
| Approximate Pay Load* | 10lb 5kg | 30lb 15kg | 50lb 25kg | 100lb 45kg | 150lb 70kg |
| Typical Reach | 4ft 1.2m | 5ft 1.5m | 7ft 2.0m | 8ft 2.5m | 10ft 3.0m |
* Pay Load = weight of nut runner + weight of tool holder
Total capacity is always a combination of torque and payload; always consult a Professional Engineer before designing a torque arm.
TA2 mounted on a mobile base with extra linkages for holding 3rd Axis attitude
For more information regarding Givens Engineering, download our informative brochure below and contact our team of professionals to discuss your unique needs.
DOWNLOAD OUR TORQUE ARMS BROCHURETo view and read PDF files, download and install Acrobat Reader.
Have any questions about our torque arms?