Torque Multipler with Planetary-gear Mechanism with Max Output 750 ft lbs - Williams

The Williams TM-290 Planetary-Gear Torque Multiplier is a compact, high-efficiency torque solution designed for technicians who need serious fastening power in tight or demanding spaces. With a maximum output of 750 ft-lbs, this multiplier delivers exceptional performance while requiring only a fraction of manual input force.

Built around a precision planetary-gear mechanism, the TM-290 multiplies input force smoothly and reliably, making it ideal for industrial maintenance, HVAC service, mechanical repair, field equipment, and any application involving stubborn or oversized fasteners.

Key Features

• Max Output: 750 ft-lbs for medium-to-heavy torque applications.
  
• Planetary-Gear System: Efficient, precision-machined gear set multiplies torque from standard torque wrenches.
  
• Torque & Gear Ratios:
  • Torque Ratio: 3.1:1
  • Gear Ratio: 4:1
  • Input Capacity: 227 ft-lbs
    
• Drive Sizes:
  • Input Female Square: 1/2"
  • Output Male Square: 3/4"
    
• Compact Dimensions:
  • Overall Length: 8.5"
  • Head Height: 3-1/4"
  • Head Diameter: 2-13/16"
    
• Operational Benefits:
  • Designed for loosening/tightening stubborn fasteners.
  • Safe, controlled torque multiplication for operator comfort.
  • Works with both standard torque wrenches and air-driven (non-impact) tools.
    

This lightweight, easy-handling torque multiplier is perfect for technicians who need reliable, repeatable torque without the bulk or complexity of hydraulic systems.