ESCO TOOL
I.D. Clamping Pipe Beveling Machine
MILLHOG SERIES

Commander MILLHOG

Imperial Range3.75" I.D. – 14.0" O.D.
Metric Range95.3mm I.D. – 355.6mm O.D.

Designed to bevel all schedules of pipe from 3.75" to 14" O.D., the Commander MILLHOG features a clamping system that spreads contact points radially inside the pipe — minimizing vibration for chatter-free end preps on both thin and heavy wall pipe.

Designed to bevel all schedules of pipe from 3.75″ (95.3mm) I.D. to 14.0″ (355.6mm) O.D., the Commander MILLHOG Model C-314 features a clamping system that spreads the contact points of the clamps radially inside the pipe. This minimizes vibration for chatter-free end preps on both thin and heavy wall pipe.

To assure stable, smooth rotation of the cutterhead, this rugged tool employs dual opposed tapered roller bearings. Powerful and versatile, torque at the cutter blade for the Commander is achieved with a choice of three motor options suited to fit your application. Like all MILLHOG tools, the Commander MILLHOG is simple to operate and ruggedly designed for years of trouble-free service.

Commander MILLHOG - Pneumatic
Commander MILLHOG video
Technical Data

Specifications

SpecificationValue
Working Range 3.75" I.D. – 14.0" O.D.
Blade Series M-Series Blades
Min. Width 11.5"
Head Length 26.0"
Pneumatic — Power 3.0 hp
Pneumatic — Air Pressure 90 psi
Pneumatic — Air Flow 95 cfm
Electric — Power 1800 W
Electric — Voltage 120 V
Electric — Frequency 50/60 Hz
Hydraulic — Power 5 hp
Hydraulic — Pressure 1500 psi
Hydraulic — Flow 5–10 gpm
Cutterhead Speed — Pneumatic 24 rpm
Cutterhead Speed — Electric Gear Box Included
Cutterhead Speed — Hydraulic 1–22 rpm
Cutterhead Speed (gear box) — Pneumatic 12 rpm
Cutterhead Speed (gear box) — Electric 6.5–22.5 rpm
Cutterhead Speed (gear box) — Hydraulic 1–11 rpm
Working Weight — Pneumatic 89 lbs
Working Weight — Electric 91 lbs
Working Weight — Hydraulic 93 lbs
Shipping Weight — Pneumatic 200 lbs
Shipping Weight — Electric 202 lbs
Shipping Weight — Hydraulic 204 lbs
Shipping Dimensions 32" × 15" × 17"
What's Included

Available Kits

Basic

C-200
(1) Motor and gear drive assembly (specify motor)
(1) Feed mechanism
(1) Draw rod assembly
(2) Blade Block
(1) Carrying case
(1) Operating and maintenance instructions
CLAMP RIBS AND PADS SOLD SEPARATELY (see clamp rib chart)
Pneumatic motor add-on: 3/4" hose with filter, oiler, and 1/2" coupler
Electric motor add-on: CD-GB Gear Box

Complete

C-300
(1) Motor and gear drive assembly (specify motor)
(1) Feed mechanism
(1) Draw rod assembly
(2) Blade Block
(7) Clamp rib sets C-01 – C-07
(1) Carrying case
(1) Operating and maintenance instructions
Pneumatic motor add-on: 3/4" hose with filter, oiler, and 1/2" coupler
Electric motor add-on: CD-GB Gear Box

Rental

Rental tool kits are configured per job — contact ESCO for a custom rental package built for your specific application.

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 →
Add-Ons

Accessories

Adjustable Tool Post — D-57

The D-57 Adjustable Tool Post allows operators to fine tune their cutting blades to precisely the right position for the most accurate weld prep profiles when using the Commander, Dictator, and Dictator II MILLHOG machines. Features a carriage design as well as the ESCO wedge style blade lock system.

Blade Block — C-52

The Commander MILLHOG cutterhead has 3 positions to mount blade blocks so that multiple angles of bevel can be performed at once. Both the basic and complete kits come with 2 blade blocks, but additional blade blocks can be purchased separately.

Safety Spring Hanger — CD-SH

The Commander/Dictator Safety Spring Hanger is designed to safely support the weight of the tool, while allowing for slight up and down movement to make mounting easier. The safety chain prevents the possibility of over extending the spring and provides a fail safe catch should the springs fail.

Torque Multiplier Gear Box — CD-GB

The Torque Multiplier Gear Box fits both the Commander and Dictator and is designed to be easily installed with all motor options. When the Gear Box is attached, the cutterhead rpm is cut in half while torque is doubled, making it ideal for larger pipe or pipe with heavy wall thickness.

Right Angle Drive — CD-RA

The Right Angle Drive easily attaches to the Commander or Dictator housing so that the motor can be mounted to the side of the tool, rather than straight. Allows for adaptation when there are space restrictions on a job site, but does not compromise the function of the tool.

Reference Data

Reference Charts

Clamp Rib Chart — Commander MILLHOG

Mandrel Clamp Rib Set I.D. Range (in) I.D. Range (mm)
Standard 3.0" (76.2mm) C-01 3.75 – 4.5 95.3 – 114.3
C-02 4.375 – 5.25 111.1 – 133.4
C-03 5.125 – 6.0 130.2 – 152.4
C-04 5.875 – 6.8 149.2 – 172.7
C-01 & C-05 6.75 – 7.562 171.5 – 192.1
C-02 & C-05 7.437 – 8.25 188.9 – 209.6
C-03 & C-05 8.125 – 8.938 206.4 – 227.0
C-04 & C-05 8.875 – 9.7 225.4 – 246.4
C-01 & C-06 9.687 – 10.5 246.1 – 266.7
C-02 & C-06 10.375 – 11.125 263.5 – 282.6
C-03 & C-06 11.0 – 11.812 279.4 – 300.0
C-04 & C-06 11.75 – 12.5 298.5 – 317.5
C-03 & C-07 12.4 – 13.25 315.0 – 336.6
C-04 & C-07 13.125 – 14.0 333.4 – 355.6
See It In Action

Videos

Technical Resources

Resources

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for the Commander MILLHOG

Whether you're looking to purchase, rent, or need help sizing the right tool — our team is ready to help.

  • Free application engineering support
  • Purchase and rental programs available
  • Made in the USA — ships from Holliston, MA
  • Most quotes returned within 1 business day

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Get a custom quote for purchase or rental. Our team will help configure the right kit for your application.

(800) 343-6926