September 13, 2010
MILLHOG® air-powered tube expanders and rolling motors for creating steel-to-steel mechanical seals in boilers, heat exchangers, and condensers are available from Esco Tool.
The tools feature precise torque control from 25 to 325 ft.-lbs. for tube expansion and wall reduction to create tight tube joints. Once the proper torque level is established, this setting can be retained so that each time the throttle is engaged, the tool will stall when it reaches the desired tube expansion.
Allowing operators to roll multiple tubes rapidly, the tools are offered in five kits to accommodate tubes from 1 to 4.25 in. OD and 1 to 20 ga. wall thickness. A 6-ft. hose whip and all required tools are included. Configurations include straight and right-angle rolling motors for straight and flare rolls.