Dimension™ 650 Multiprocess Welder | MillerWelds

Dimension™ 650

Developed for harsh environmental conditions and output requirements that range from power-intensive to precise.

Machine Only

575V ArcReach




Rugged and Durable Inside and Out
All aluminum construction makes the machine resist corrosion for long life. With exclusive technologies including Wind Tunnel Technology™ and Fan-On-Demand™, the Dimension 650 will withstand the elements and keep on working!
Smaller and lighter
Reduced size and weight results in 40% less floor space than previous model giving a package that exceeds the welding performance of larger, heavier machines.
Power Efficient
High electrical efficiency and excellent power factor mean that you can get more welding done using less power. On 460 VAC input power, the Dimension 650 at rated output can operate on a 50-amp service. Four machines can work at maximum loads simultaneously, drawing less amperage than three previous models.
Improved Arc Performance
High-quality performance from power-intensive to precise.Gouging mode provides 800 amps of usable power, a full 650 amps of power at 100-percent duty cycle. Perfect for heavy gouging with 3/8-inch carbons.Three wire modes (GMAW/FCAW/SAW) for simplified setup and optimized arc performance. Solid and flux-cored wires with gas offer exceptional short-arc MIG precision to weld thin metals with less risk of distortion or burn-through, and premium Flux-Cored welding with gas. Flux-Cored (self-shielded) welding performance is exceptional, especially with wires commonly found in infrastructure construction. Sub Arc mode provides capability to retrofit into nondigital Sub Arc applications. Excellent Stick and Lift Arc TIG performance.Arc control is beneficial when welding with Stick and solid wires for easier fine-tuning of tough-to-weld materials and out-of-position applications.



Air Carbon Arc Cutting and Gouging (CAC-A)
Flux Cored (FCAW)
Stick (SMAW)
Submerged Arc (SAW)

General Specifications

Title Dimension™ 650
Industries Interests Construction and Fabrication
Heavy Equipment
Amperage 15 A - 815 A
Weldable Metals Specialty Metals
Stainless Steel
Input Voltage 380/400/440 V
460/480 V
Input Phase 3-Phase
Input Hz 50/60 Hz
Input Amperage 53.2
Max Open Circuit Voltage 87 VDC
Portability Lift Eye (Standard)
Running Gear / Cart (Optional)
Weld Output CC / CV
Applications Mobile Fabrication & MRO
Pressure Vessel
Refineries and Power Plants
Net Width 16.687 in
Net Height 28.187 in
Net Length 31.625 in
Net Weight 158 lbs
Warranty 3 Years
Miller's True Blue Warranty