Weldac – High‑Output Solid‑State Tub & Pipe Welders
Weldac is ENRX family of high-output solid-state tube and pipe welders, covering power outputs from 50 kW to 2200 kW with a frequency range of 60–500 kHz. It is a complete system consisting of a diode rectifier, inverter modules, output section, busbar and operator control system.
The system offers extremely high efficiency (85–87%) from rectifier input to coil output), low cooling water consumption, and a constant high-power factor (0.95) at all power levels. Its modular design gives a compact footprint, simplifies integration into tube mills, and allows one-cabinet solutions up to 1000 kW.
Weldac is engineered for maximum uptime using continuous electronic load matching, automatically adjusting to different tube diameters and eliminating manual tuning. The system supports a wide range of options including positioning tables, heat exchangers, auto-transformers, welding monitoring systems, impeders, coils and more.
- • Power range 50–2200 kW; frequency range 60–500 kHz
- • Modular compact design; one-cabinet 1000 kW solution
- • Extremely easy operation with automatic frequency adjustment
- • Continuous electronic load matching for full power across tube sizes
- • High efficiency: 85–87% rectifier-to-coil
- • High power factor (0.95) using diode rectifier
- • Wide range of optional accessories
- • Eco-friendly low water consumption
- • Short-circuit-proof and safe design
- • 5-year warranty on inverter modules and driver cards
- • More uptime thanks to automatic matching and solid-state reliability
- • Higher throughput due to fast coil changes and optimized welding speed
- • Lower operating costs from high efficiency and low water use
- • Reduced operator error due to simple control panel
- • Easily integrates into new or existing tube mills
- • Long-term reliability with global service support
- • Longitudinal tube and pipe welding (steel tube mills)
- • Stainless steel, carbon steel and non-ferrous tube production
- • High-speed welding lines requiring stable power delivery
- • Retrofitting of older generation welders
- • Applications demanding fast coil changes and automatic load matching
Weldac systems are designed to comply with industrial electrical, safety and performance standards.
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