Miller CST 280 Stick Welder

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Miller CST 280 Stick Welder is designed for Stick/TIG welding pipe and plate in the construction industry, this small, durable, goes-anywhere welder delivers 280 amps of superior Stick performance, up to 5.0 mm diameter.

  • Adaptive Hot Start™ for stick arc starts automatically increases the output amperage at the start of a weld should the start require it. Prevents the electrode from sticking.
  • Process Selector Knob which automatically sets the proper dig setting on E6010 and E7018 electrodes providing superior stick performance.
  • Lift-Arc™ start provides TIG arc starting without the use of high frequency.
  • Portable in the shop or at the jobsite — at 41 pounds the CST 280 is easily moved from location to location.
  • Fan-On-Demand™ cooling system operates only when needed, providing power efficiency and noise reduction.
Miller CST 280 Stick welder
Model CST™ 280 208-230/400-460 V, Dinse
Processes Stick (SMAW)
TIG DC (GTAW-DC)
Industries Interests Construction
Infrastructure
Shipbuilding
High Purity Processing
Maintenance and Repair – Field Operations
Maintenance and Repair – In Plant
Mechanical Contracting
Pipe Fabrication / Construction
Weldable Metals Steel
Stainless Steel
Input Voltage 208 V
220/230/240 V
460/480 V
Rated Carbon Diameter 3/16 in (4.8 mm)
Input Phase 1- and 3-Phase
Input Hz 50 / 60 Hz
Current Type DC
Rated Output 280 A @ 31.2 V, 35% Duty Cycle (Three Phase)
200 A @ 28 V, 100% Duty Cycle (Three Phase)
200 A @ 28 V, 50% Duty Cycle (Single Phase)
150 A @ 26 V, 100% Duty Cycle (Single Phase)
Max Open Circuit Voltage 67 VDC
Amperage Range 5 DC – 280 DC
Portability Handle(s)
Weld Output CC
Net Width 7.5 in
Net Height 13.5 in
Net Length 18 in
Net Weight 41 lbs
Warranty 3 Years
Miller’s True Blue Warranty

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