951767

Miller 951767 Multimatic 255 Pulsed Multi-Process Welder (208–575V) w/ Running Gear (RG)

The Miller Multimatic 255 (951767) is a high-end industrial multi-process inverter welder designed for serious fabrication, manufacturing, and heavy workshop use. It is part of Miller’s upper-tier portable systems, offering significantly more power and capability than the Multimatic 215/220 line.

This specific configuration (951767) includes the EZ-Latch running gear (RG), making it a more complete mobile shop setup with gas cylinder mounting and industrial transport frame.

Key Features

- True industrial multi-process capability

- One machine replaces MIG, TIG, and Stick setups

- Auto-Set Elite digital control

- Automatically sets welding parameters by material and thickness

- Pulsed MIG + Pulsed TIG

- Better control on thin materials and aluminum welding

- Wide voltage range (208–575V)

- Works in nearly any industrial environment

- EZ-Latch Running Gear (RG)

- Dual-cylinder gas rack + cable management system
- Makes the system mobile inside a workshop

Best Applications

- Industrial fabrication shops
- Automotive performance and chassis fabrication
- Aluminum fabrication (with spool/push-pull systems)
- Structural steel repair and manufacturing
- Heavy equipment maintenance
- Production welding environments

Advantages

- Extremely versatile (covers nearly all welding processes)
- High output (up to 350A class)
- Excellent for aluminum, steel, and stainless
- Advanced pulsed MIG improves weld quality and reduces distortion
- Industrial-grade control system with memory programs
- Strong shop mobility with running gear package

Limitations

- Not a light portable machine (84 lb class system)
- Expensive compared to entry/mid-range welders
- Requires proper industrial electrical setup for full performance
- Overkill for hobby or light garage use