Designed & Manufactured
in the United States & Canada

Givens Lifting Systems Inc, Toledo, OH
419-724-9001

USA

Torque Arms

TA10 Torque Arm with Complex Toolholder
TA10 Torque Arm with Complex Toolholder

Torque Arms For Any Application

Torque Arms have 2 roles: 
  1. They absorb the torque that is generated during tightening 
  2. They provide lift for the nutrunner, so that the nutrunner floats at all times on the end of the arm and the arm follows, horizontally and vertically. 
All of our torque arms float on air and are exceptionally easy to move about. In general, the arm itself is mass-produced and stocked. The toolholder though, is made custom for the nutrunner and the application at hand. The toolholder can be very simple, where the nutrunner is fixed, or it can be complex, with brakes and multiple nutrunner angles.
Tilting Toolholder with Brakes
Tilting Toolholder with Brakes
TA5 torque arm with Repositionable
Nutrunner
TA5 torque arm with Repositionable Nutrunner
A TA2 torque arm mounted overhead. Toolholder mounts the nutrunner allowing a 360-degree spin.
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.
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.
Torque arm mounted on a mobile base by Givens Engineering Inc.

Torque Arms with Muscle!

In the photos right and below, the nutrunner has been created by Givens Engineering. The nutrunner consists of a servomotor and gear reducer, controlled by PLC and monitored thru 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
Servomotor Nutrunner
TA5 with servomotor nutrunner mounted in a complex
toolholder that pivots from horizontal to vertical.
TA5 with servomotor nutrunner mounted in a complex toolholder that pivots from horizontal to vertical.
Servo controls
Servo controls
Trombone close-up, incorporates rotation
Trombone close-up, incorporates rotation
TA10 torque arm with “trombone”
toolholder
TA10 torque arm with “trombone” toolholder
Trombone converges on both nut and bolt to fasten simultaneously.
TA10 with braked, tilting, rotating toolholder
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 support the weight of the end effector / tooling, instead of the operator
  • The load 'floats', no up/down pushbuttons are required
  • The arms are lightweight and agile. The axis assemblies are made from anodized aluminum
  • Softstops at the first and second axis are adjustable
  • The arms are clamped to the post, the height can be adjusted

Optional Accessories

  • 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 effectors to rotate 
  • The parallel arms can be fitted with vertical travel stops 
  • The STD-TA series is compatible with the Pinpoint 'SmartARM' system. This SmartARM system tracks the position of the tool and allows individual torque values to be programmed for every fastener

Torque Arm Model Selection

Arm SizeTA1TA2TA5TA10TA20
Torque75ft-lb 100N-m150ft-lb 200N-m370ft-lb 500N-m750ft-lb 1000N-m1500ft-lb 2000N-m
Approximate Pay Load*10lb
5kg
30lb 15kg50lb 25kg100lb 45kg150lb 70kg
Typical Reach4ft
1.2m
5ft 1.5m7ft 2.0m8ft 2.5m10ft 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
TA2 mounted on a mobile base with extra linkages for holding 3rd Axis attitude

Approximate shape for TA1, TA2, TA3. TA10 and TA20 are slightly different. Arm 1 and Arm 2 are normally stocked in lengths that vary in 10” increments.
Have any questions about our torque arms?