A pipe milling end prep tool for beveling water wall boiler tubes at biomass processing facilities in preparation for precision welding repairs is being introduced by Esco Tool. The Esco Wart MILLHOG is a boiler tube beveling machine that features a rigid ID clamping system and uses TiN-coated cutter blades to machine carbon steel or highly alloyed tubes without cutting fluids. Capable of beveling, facing and boring simultaneously, tooling changes are simple for machining water boiler tubes from 2" to 3" OD.

Rigidly attaching to the tube with clamps that fit into ID and expand on the mandrel using a self-centering draw rod assembly and attached wrenches, the Esco Wart MILLHOG boiler tube beveling machine is sealed to prevent debris from entering the tool. Designed with reliable dual opposed taper roller bearings, it is offered with pneumatic and electric motors.