TM-290 - Williams - Torque Multipler with Planetary-gear Mechanism with Max Output 750 ft lbs

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.