The Wart MILLHOG is a portable right angle I.D. clamping pipe and tube beveling machine with a low-maintenance design – a favorite among boilermakers and pipe fitters. Compact 2.625″ body fits between tubes in a boiler waterwall.
The Wart MILLHOG is a portable right angle I.D. clamping pipe and tube beveling machine that features an efficient low maintenance design. Incorporating a gear drive that is fully supported by dual opposed tapered roller bearings and three heavy duty ball bearings, this gives the Wart the backbone to satisfy a wide variety of applications and is a favorite choice among boilermakers and pipe fitters.
All components are made of the finest materials and parts subject to wear are heat treated for durability and long use. Sealed construction prevents debris from getting inside the tool, allowing use in any orientation. The compact design requires a minimum of 2.625″ to fit between tubes in a boiler tube waterwall.
| Specification | Imperial | Metric |
|---|---|---|
| Working Range | 0.75″ I.D. – 4.5″ O.D. | 19.1 mm I.D. – 114.3 mm O.D. |
| Blade Series | M-Series Blades | M-Series Blades |
| Min. Width | 2.625″ | 66.7 mm |
| Length | 15.25″ | 387.4 mm |
| Pneumatic – Power | 1.25 hp | 932 W |
| Pneumatic – Air Pressure | 90 psi | 6.2 bar |
| Pneumatic – Air Flow | 40 cfm | 1133 L/min |
| Electric – Power | 950 W | 900 W |
| Electric – Voltage | 220-240 V | |
| Electric – Frequency | 50/60 Hz | 50/60 Hz |
| Cutterhead Speed – Pneumatic | 114 rpm | 98 rpm |
| Cutterhead Speed – Electric | 14-58 rpm | 87 rpm |
| Working Weight – Pneumatic | 21.5 lbs | 9.8 kg |
| Working Weight – Electric | 22.6 lbs | 10.3 kg |
| Shipping Weight – Pneumatic | 55 lbs | 24.9 kg |
| Shipping Weight – Electric | 60 lbs | 27.2 kg |
| Shipping Dimensions – Pneumatic | 24″ × 20″ × 6″ | 610 mm × 508 mm × 152 mm |
| Shipping Dimensions – Electric | 24″ × 20″ × 7″ | 610 mm × 508 mm × 178 mm |
| Mandrel | Clamp Rib Set | I.D. Range (in) | I.D. Range (mm) |
|---|---|---|---|
| Optional 0.75″ (19.1 mm) | G-03 A | 0.750 – 0.905 | 19.1 – 22.9 |
| G-04 | 0.875 – 1.030 | 22.3 – 26.1 | |
| G-05 | 1.000 – 1.155 | 25.4 – 29.3 | |
| G-06 | 1.125 – 1.280 | 28.6 – 32.5 | |
| G-07 | 1.250 – 1.405 | 31.8 – 35.6 | |
| G-08 | 1.375 – 1.530 | 35.0 – 38.8 | |
| G-09 | 1.500 – 1.655 | 38.1 – 42.0 | |
| G-10 | 1.625 – 1.780 | 41.3 – 45.2 | |
| G-11 | 1.750 – 1.905 | 44.5 – 48.3 | |
| G-12 | 1.875 – 2.030 | 47.7 – 51.5 | |
| G-13 | 2.000 – 2.155 | 51.0 – 54.7 | |
| Optional 1.0″ (25.4 mm) | H-0 | 1.000 – 1.300 | 25.4 – 33.0 |
| Standard 1.25″ (31.8 mm) | H-01 | 1.25 – 1.600 | 31.8 – 40.6 |
| H-02 | 1.525 – 1.925 | 38.8 – 48.9 | |
| H-03 | 1.850 – 2.250 | 47.0 – 57.1 | |
| H-04 | 2.175 – 2.575 | 55.3 – 65.4 | |
| H-02 & H-05 | 2.500 – 2.900 | 63.5 – 73.6 | |
| H-03 & H-05 | 2.825 – 3.225 | 71.8 – 81.9 | |
| H-04 & H-05 | 3.150 – 3.550 | 80.0 – 90.1 | |
| H-02 & H-08 | 3.475 – 3.875 | 88.3 – 98.4 | |
| H-03 & H-08 | 3.800 – 4.200 | 96.6 – 106.6 | |
| H-04 & H-08 | 4.125 – 4.525 | 104.8 – 114.9 |
| Mandrel | Cutterhead Size (in) | Cutterhead Size (mm) | Cutterhead Part # |
|---|---|---|---|
| Optional 0.75″ (19.1 mm) | 2.625 | 66.7 | H-242 |
| 1.0″ (25.4 mm) and 1.25″ (31.8 mm) | 2.625 | 66.7 | CH-20 |
| 3.0 | 76.2 | CH-21 | |
| 3.5 | 88.9 | CH-22 | |
| 4.0 | 101.6 | CH-23 | |
| 4.5 | 114.3 | CH-24 |
| Image | Accessory | Details |
|---|---|---|
 | Mandrel Kit (1.0″ / 25.4 mm) – H-221 | The H-221 mandrel kit is designed to fit both the Wart MILLHOG and Tube Weasel MILLHOG gear head and will allow it to fit in tube with a 1.0″ (25.4 mm) I.D. The advantage of this mandrel kit is that it uses the same cutterhead and wrench assembly that comes standard on the Tube Weasel and Wart, but allows for slightly smaller I.D. compared to standard. Clamping range with this mandrel kit is 1.0″ (25.4 mm) I.D. to 1.3″ (33 mm) I.D.
|
 | Mandrel Kit (0.75″ / 19.1 mm) – H-240 | The H-240 mandrel kit is designed to fit in the Wart MILLHOG gear head and will allow it to fit in tube with a 0.75″ (19.1 mm) I.D. This kit comes with a specific cutterhead that will fit the smaller 0.75″ (19.1 mm) shaft along with the draw rod assembly. The clamping range of this mandrel kit is 0.75″ (19.1 mm) I.D. to 1.28″ (32.5 mm) I.D.
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| Z-Wart Configuration – Application-specific | The Z-Wart MILLHOG incorporates a right angle drive that lowers the rpm by half and doubles the torque at the cutter blade. This makes it well suited for applications that include tube stub removal. The configuration is selected and ordered according to the application requirements. | |
| Membrane Removal Head – See size chart | Cutting head designed to remove the membrane between tubes on a boiler panel. Membrane heads use MRB-8 inserts (8 mm carbide bit, same insert as Overlay heads) to remove material. A specific base cutterhead is required for mounting.
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| Overlay Removal Head – See size chart | Cutting head designed to remove the membrane and overlay on boiler panels coated with overlay material. Uses the same 8 mm insert as the membrane heads. A specific base head is required for mounting. Slightly smaller circumference than membrane heads forces the head under hard material.
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The HADI Technologies team will help you select the right configuration, verify application requirements and provide technical information about Esco Tool WART MILLHOG Pipe and Tube Beveling Machine.
The right solution starts with a clear brief
The HADI product development and engineering team can adapt a tool, product or system to your application.