Power Torque Wrench/Assembly

Pneumatic motor mounted on torque wrench, for work from provisional tightening to final tightening using just the one tool.

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A50N3 [Overall length: 277mm]

A180N3 [Overall length: approx. 487.5mm]

Left: Turning with an ordinary socket                Right: Turning with an anti-vibration socket


  • For assembly and mass-production.


  • The A3 series semi-automatic Airtork can be used with anti-vibration sockets for impact wrenches. This reduces vibrations during turning, and improves work efficiency.
  • Replaces conventional two-step tightening process with one tool in great efficiency.
  • Provisional tightening is applied using the air motor operation, and completed in high accuracy by manual torque wrench operation.
  • Final tightening is done with the torque wrench, so fluctuations in air pressure will not affect applied tightening torque.
  • Changing tightening torque is simple: just turn the knob to adjust the N•m scale.
  • Easy calibration with torque wrench tester
  • LS version comes with limit switch. Thich creates error-proofing (Pokayoke) system when used with CNA-4mk3 count checker (sold separately).

Demonstration video

The A3 Semi-Automatic Airtork



A3 dimensional drawings

A180N3 dimensional drawings

ALS3 dimensional drawings

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