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Rolling Controls | Krais | Field Machine Tools

Supplier: Field Machine Tools

Krais now offers a multitude of rolling controls.

Price Guide: POA

K20 Pneumatic Rolling Motors

K20 pneumatic rolling motor is designed for the fast and accurate torque controlled rolling of tubes from 1/4” - 1/2” OD (6.3mm - 12.7mm OD). This uniquely designed tool with automatic reverse, expands tubes to a preset torque, at which point it automatically trips over to its reverse rotation, backing itself out of the tube ready for the next expansion.

The process is fast and effortless making it the ideal tool for production rolling applications. Our K-20 Models are available in 500, 1800 & 2500 rpm’s (see chart for suggested Tube Diameters). All models are furnished with their own carrying case & instruction manual.

K70 Right Angle Rolling Motor

Our Latest Model Torque Controlled Rolling Motors have been designed specifically for the Boiler Tube Industry. Our Models K72-RT-90 AND K73-RT-190 are a Right Angle Tools Equipped with a Roll Throttle as standard. A Lever throttle is optional. Our Tools have a unique Head design which features a fully enclosed bearing design for long and trouble free life. With Industry input, our tools have been specifically engineered to precisely and consistantly Expand Tubes in Steam / Mud Drums, Fire Tube and related Boilers and Equipment.

AK50 Full Automatic Rolling Motor

AK50 tube rolling motor with automatic reverse.

The machine automatically:

  • start up when the expander is located in the tube;
  • reverse the revolution to the left once determine the set up torque;
  • stop when expender is withdrawn from the tube. 

Rolling Controls

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