High-torque stroking unit

Help With This Product

Product Literature
Case Histories

Forum Energy Technologies’ AMC high-torque (HT) stroking machine is designed for fast and accurate makeup and breakout of threaded connections on drilling tools, well completion assemblies and other oilfield related equipment, up to a maximum torque of 250,000 ft-lb.

The HT stroking machine is powered and controlled by an AMC hydraulic power unit (HPU). Over the years, Forum has redesigned the HPU to incorporate customer feedback and industry requirements to improve user ergonomics, makeup accuracy and process cycle times. 

Optimized for efficiency and safety

The self-contained, free-standing, hydraulically powered torque machine consists of a fixed headstock and a traversing tailstock, which is available with an open-top feature to help ensure tools are loaded safely and efficiently.

Both heads feature hydraulically controlled clamp cylinders that can go from 3 to 28 in. OD, or up to the machine’s maximum diameter, without the need to change jaws between sizes. The hydraulic system works at low working pressures, eliminating the need for high-pressure hoses and fittings, lowering component costs and improving safety to the customer.

All machines are delivered with a one-year OEM warranty for peace-of-mind operation. The system is robust enough to withstand virtually every environment, including extreme heat and cold temperatures for extended and prolonged workshop use.


  • Improves the authenticity of torque readings
  • Reduces component requirements and saves downtime
  • Increases reliability
  • Decreases HSE risks


  • Accurate graph reports on threaded makeups for full authentication and traceability
  • Variable electrical supply
  • Oil cooler fitted as standard
  • Calibrated to thread manufacturers' guidelines and tolerances
  • Full OEM 12-month warranty