Pneumatic and Cordless Torque Multiplier / Torque Wrench

(Also known as Air-Driven or Battery-Driven High-Torque Tools)

Pneumatic and Cordless (Battery-Driven) Torque Multipliers or Torque Wrenches are power-assisted precision bolting tools that deliver controlled, repeatable, and high-output torque for tightening or loosening heavy fasteners.
They combine the power of air or electric motors with a planetary gear reduction system, allowing operators to achieve very high torque with minimal physical effort and exceptional accuracy.

Unlike impact wrenches—which apply hammer blows—these multipliers apply smooth, continuous torque, ideal for precision bolting, flange assembly, and maintenance operations in industries such as oil & gas, wind energy, heavy machinery, and transportation.

Pneumatic Torque Multiplier / Torque Wrench

Working Principle

• A compressed-air motor drives a high-ratio planetary gearbox.

• The gearbox multiplies torque while reducing speed, and a reaction arm absorbs counter-torque.

• The applied torque is precise and repeatable within ±5 %.

Key Features

• High torque output with compact size.

• Continuous, vibration-free rotation (no impact pulses).

• Adjustable air pressure → direct torque control.

• Durable and reliable for continuous industrial duty.

• Ideal pairing with ZIPPTORK smart torque controllers or ZIPPTORK Wireless Rotary Torque Transducer for wireless data collection.

Applications

• Pipeline flange bolting

• Heavy equipment assembly and maintenance

• Power-generation and shipbuilding industries

Cordless Torque Multiplier / Torque Wrench

Working Principle

• A brushless DC or servo motor, powered by a rechargeable Li-ion battery, drives a precision gear-reduction system.

• Built-in electronics monitor torque, angle, and cycle time for fully digital fastening control.

Key Features

• Portable and cable-free operation — excellent mobility in the field or confined spaces.

• Digital torque and angle control with ±5 % accuracy.

• Data logging → stores every fastening cycle for traceability.

• Low noise, low vibration, and maintenance-free brushless drive.

• Compatible with IIoT / MES systems via Bluetooth or RF2.4G.

Applications

• Wind-turbine and structural bolting

• Rail, mining, and construction equipment assembly

• On-site maintenance where the air supply is unavailable

Smart Integration (ZIPPTORK Example)

Both pneumatic and cordless multipliers can be equipped with:

• Wireless Rotary Torque Transducers (TTES / TTAS / TTEH / TTAH Series)

• Smart Torque Controllers (TCA / TCB / TCC Series)

• Real-time data logging → OT → IT → IIoT → MES integration

This allows:

• Closed-loop torque verification

• Torque-time and torque-angle analysis

• Full traceability and SPC (Statistical Process Control)

Advantages Summary