Wart MILLHOG
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.
Specifications
| Specification | Value |
|---|---|
| Working Range | 0.75" I.D. – 4.5" O.D. |
| Blade Series | M-Series Blades |
| Min. Width | 2.625" |
| Length | 15.25" |
| Pneumatic — Power | 1.25 hp |
| Pneumatic — Air Pressure | 90 psi |
| Pneumatic — Air Flow | 40 cfm |
| Electric — Power | 950 W |
| Electric — Voltage | 120 V |
| Electric — Frequency | 50/60 Hz |
| Cutterhead Speed — Pneumatic | 114 rpm |
| Cutterhead Speed — Electric | 14–58 rpm |
| Working Weight — Pneumatic | 21.5 lbs |
| Working Weight — Electric | 22.6 lbs |
| Shipping Weight — Pneumatic | 55 lbs |
| Shipping Weight — Electric | 60 lbs |
| Shipping Dimensions — Pneumatic | 24" × 20" × 6" |
| Shipping Dimensions — Electric | 24" × 20" × 7" |
Available Kits
Standard
H-200(1) Feed mechanism
(1) Mandrel 1.25" (31.8mm)
(1) Draw rod assembly
(1) Cutterhead (see cutterhead chart for options)
(2) Clamp rib set, choice of H-01 through H-05, H-08 (specify)
(1) Carrying case
(1) Operating and maintenance instructions
Deluxe
H-300(1) Feed mechanism
(1) Mandrel 1.25" (31.8mm)
(1) Draw rod assembly
(2) Cutterhead (see cutterhead chart for options)
(6) Clamp rib sets (H-01 through H-05, H-08)
(1) Carrying case
(1) Operating and maintenance instructions
Rental
Rental tool kits are setup and packaged to meet your specific job and application requirements. Your tool arrives ready to go with only the parts necessary for your job.
Learn About Rentals →Accessories
Mandrel Kit (1.0" / 25.4mm) — 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" (25.4mm) 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" (25.4mm) I.D. to 1.3" (33mm) I.D.
Mandrel Kit (0.75" / 19.1mm) — 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" (19.1mm) I.D. This kit comes with a specific cutterhead that will fit the smaller 0.75" (19.1mm) shaft along with the draw rod assembly. The clamping range of this mandrel kit is 0.75" (19.1mm) I.D. to 1.28" (32.5mm) I.D.
Z-Wart Configuration — Consult Factory
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. Please consult factory for application specifications and ordering information.
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 (8mm carbide bit, same insert as Overlay heads) to remove material. A specific base cutterhead is required for mounting.
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 8mm 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.
Reference Charts
Clamp Rib Chart — Wart MILLHOG
| Mandrel | Clamp Rib Set | I.D. Range (in) | I.D. Range (mm) |
|---|---|---|---|
| Optional 0.75" (19.1mm) | G-03A | 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" (25.4mm) | H-0 | 1.000 – 1.300 | 25.4 – 33.0 |
| Standard 1.25" (31.8mm) | 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 |
Cutterhead Chart — Wart MILLHOG
| Mandrel | Cutterhead Size (in) | Cutterhead Size (mm) | Cutterhead Part # |
|---|---|---|---|
| Optional 0.75" (19.1mm) | 2.625 | 66.7 | H-242 |
| 1.0" (25.4mm) and 1.25" (31.8mm) | 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 |
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