Watch the DMM-YG series bevel large diameter pipe ends with precision
Overview
The DMM-YG Large Pipe Milling Series solves a problem that traditional pipe bevelers can’t: processing pipes too large to rotate or clamp conventionally. The machine travels around stationary pipe surfaces, milling precise bevels on pipes over 800mm diameter—common in offshore risers, power plant headers, and large-bore process piping.
Key Advantages
- 800mm+ pipe specialist — Self-traveling design for pipes too large for conventional clamps
- Heavy wall capability — Process walls up to 100mm thick with YG-80
- Code-compliant finish — Ra3.2-6.3 surface goes straight to fit-up
- Adjustable angles — 0°-70° coverage for standard and specialty preps
Which Model Should You Choose?
For pipes up to 45mm wall thickness:
The DMM-YG-60 handles 5-45mm walls with 0°-60° bevel angles and up to 30mm bevel width. At 4000W and 310kg, it’s maneuverable enough for field work while delivering shop-quality results.
For heavy-wall pipes up to 100mm:
Choose the DMM-YG-80 for 6-100mm walls with 25°-70° angles and 65mm bevel width. The 6000W motor and 330kg frame handle the thickest offshore and power generation linepipe.
Where DMM-YG Excels
| Situation | Why DMM-YG |
|---|---|
| Pipes over 800mm OD | No clamp required, self-traveling |
| Offshore risers | Heavy wall, corrosion-resistant |
| Power plant headers | Steam-rated alloys, critical welds |
| Fixed pipelines | Pipe stays stationary |
| Duplex/super duplex | Cold cutting, no HAZ |
Technical Specifications Summary
| Model | Wall Thickness | Bevel Width | Bevel Angle | Power | Weight |
|---|---|---|---|---|---|
| DMM-YG-60 | 5-45mm | Max 30mm | 0°-60° | 4000W | 310kg |
| DMM-YG-80 | 6-100mm | Max 65mm | 25°-70° | 6000W | 330kg |
Operating Principle
- Position machine on pipe surface
- Clamp guide rail or magnetic base
- Set bevel angle and depth
- Engage auto-travel at 1.0-1.5m/min
- Monitor as machine circles the pipe
- Reverse direction for second pass if needed
The pipe stays fixed; the machine does the work.
Customization Options
- Bevel Angle — Custom cutter angles manufactured to specification
- Voltage — 380V/50Hz standard, other configurations available
- Mounting — Magnetic base upgrade for additional stability
- Control — Remote control pendant for safe operation
