Power Plant Maintenance & Management Tools

MILLHOG® Rolling Motors and Tube Expanders are air-powered and feature a torque control setting which stalls the tool when it reaches the desired tube expansion to prevent over-under expansion. Enabling users to create a uniform and tight mechanical seal, these tube sheet expanders are easy to adjust and allow precise torque control from 25 to 325 ft.-lbs.

Available with 90, 190, and 280 RPM motors, the right angle style Esco MILLHOG® Rolling Motors and Tube Expanders are offered as kits for tubes from 3/8” to 4-1/2” O.D. and tube sheets to 5-3/8”. Supplied complete and ready to use with standard shop air, they are ideally suited for creating mechanical seals in boilers, heat exchangers, and condensers.
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The Ground MILLHOG® is ideal for tube beveling during boiler outages and can end prep all boiler tube materials. The critical width dimension is only 1.500in wide for accessing single tubes in a boiler tube waterwall and it can be equipped with a Membrane Removal Head for removing membrane from boiler tubes from .875in o.d. to 1.250in o.d.The available automatic air activated clamping system instantly clamps and releases the beveling tool to and from the tube i.d. This reduces cycle time between end preps and can increase tube beveling production by 300% or more.
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Quick set-up and fast straight cuts with no HAZ are what MILLHOG® Air Powered Saw Kits are all about and this kit is equipped to do it well during water tube boiler outages when replacing tube panels. The APS-200A Air Powered Saw Kit includes all that’s needed to cut boiler tube water wall panels. Its five foot Track is easily mounted and relocated along the cut line with the three reusable Weld Tabs. The 3/4″ air hose is equipped with a heavy duty filter and oiler that deliver plenty of air flow, protection from contaminants and lubrication for the powerful 3hp motor. Equipped with a 12” Cut-Off Blade it provides a maximum depth of cut of 4.375in and requires 13.5in clearance. Please check out the available accessories that help save time and provide accurate boiler tube membrane removal, high speed beveling of tube ends and pipe cutting from 6in to 60in.
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The Fin Removal Tool removes 4in of spiral fin from the tube O.D. in just a couple of minutes. The important things to note when ordering are the tube O.D. and the direction of the fin rotation. Think of it as a bolt, which way would a nut thread on, left handed or right handed? The Fin Removal tool has an aggressive rack and pinion feed that allows the Fin Removal Head to rapidly travel 4in and it uses H series Clamp Ribs. The .500in air hose is equipped with a heavy duty filter and oiler that deliver plenty of air flow, protection from contaminants and lubrication for the powerful 1.25hp pneumatic motor.
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