Railway Induction Heating Systems
Advanced induction heating solutions for maintenance, repair and manufacturing operations across the railway industry.
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.
Other Products From ENRX
Induction Brazing System for Short-Circuit Rings
A high‑precision induction brazing solution designed to braze short‑circuit rings with minimal heat input, high accuracy and outstanding joint quality.
Billet Heating Systems
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Seam Normalizing Systems
Induction-based seam normalizing systems designed for longitudinally welded pipes, providing precise, controllable and efficient heat treatment for oil and gas