The WC-400 is a heavy-duty torch head designed for demanding industrial environments where high current and sustained duty cycles are required.
Feature Details
Model Number WC-400 (Standard Reversible or Straight Head)
Cooling Type Water-Cooled
Max Rated Current 400 Amps DC / 300 Amps AC
Duty Cycle 100% @ 350 Amps (Standard Rating)
Electrode Capacity 1.6 mm to 4.0 mm (sometimes up to 5.0 mm)
Head Angle 70° (Reversible designs available)
Body Material Silicon Rubber Molded (Resilient to cracking)
Internal Material High-Grade Copper / Copper Alloy
### Key Material & Design Details
- Copper Internal Core: High-grade copper components are used internally to maximize current capacity and heat dissipation.
- Water-Cooling System: Unlike gas-cooled models, the WC-400 features a circulating coolant system through a full-flow water chamber to prevent overheating during long sessions.
- Universal Compatibility: Most WC-400 parts are interchangeable with standard SAP or Miller Weldcraft (WP-18SC type) torch components.
- Construction: Typically features separate inputs for shielding gas, water inflow, and water outflow to ensure uniform gas flow and cleaner welds.
### Common Related Parts for BOM
When uploading this to a system, you may want to include these compatible spares:
- Collet & Collet Body: Copper or Brass (typically 10N series).
- Alumina Nozzles: Sizes #2411 to #2413.
- Back Caps: Available in Long and Short (often brass-threaded).
