100kw SOLID STATE HF TUBE WELDER
The Solid-State High-Frequency (H.F.) Welder is engineered for efficient, high-speed pipe welding across a broad spectrum of tube sizes and wall thicknesses. With power capacities ranging from 60 kW to 1200 kW and operating within a frequency band of 200 kHz to 450 kHz, this welder offers both flexibility and performance for various production needs.
A typical solid-state H.F. welding system includes several integrated components: a rectifier switchgear cabinet, an inverter output unit, fiber-optic control links, a soft water circulation cooling system, a centralized control console, and a mechanical adjustment mechanism for precision setup.
Renowned for its user-friendly operation, minimal maintenance, and consistent weld quality, this system has become a preferred choice in modern tube and pipe manufacturing lines.

Equipment Description
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Include
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Quan.
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One set of Solid State HF Welder
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DC Power Unit
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1
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Inverter Output Unit
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1
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Central Control Unit
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1
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Water-water Heat Exchange Unit
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1
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Rectifier isolation transformer
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1
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Air conditioner
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1
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Output Leg
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1
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Designed Parameters for 100kw HF welder
Nominal Power |
100KW |
Rated DC power |
Pd=120KW |
The whole efficiency |
η≥85% |
Output power |
Pout>100kW |
MOSFET inverter |
60kW×2 |
With the adoption of water-water heat exchanger |
Water-water cooling system |
Pressure of inner circulation water |
0.15~0.25MPa |
Line-in cable |
each phase adopts 95mm2 copper cable, 3-phase 4-line |
Technical features |
Technical features like- Display instrument digitization, Full digital rectifying control board, All digital inverter control board, Closed loop technology of speed power, Ethernet networking technology, Cloud control technology (optional).Suitable for continuous production of Longitudinal Welded tube and pipe production lines. Components of the Equipment:Solid State Induction HF Welder comprises SCR DC Power supply, H.F.inverter and water cooling unit (air-water or water-water heat exchanger)
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Benefits of Solid State HF Tube Welders |
Cost Saving: Uses less power which lowers the power bills.
Quality Control: Quality of welding automatically is of top standard and has less incompleteness.
Compact Design: Space-saving machines designed for optimized industrial use.
Diversity: Able to work with multiple tasks including welding of carbon steel and stainless steel.
Industry Expertise: With years of experience, we provides solutions tailored to industry needs.
Custom Solutions: We provide solid state HF tube welders that are customized to specific customer needs.
After-Sales Support: The dependable backup and repair services are in place to enable continuous services.
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High-Frequency Generator
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Provides 100kW output power with solid-state (transistor-based) or tube-based design.
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Matching Transformer
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Ensures impedance matching between the generator and welding load.
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Induction Coil or Contact Head
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Transfers high-frequency current to the pipe edges via induction or contact.
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Cooling System
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Includes water circulation and air-cooled systems to cool the generator and coil.
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Control Cabinet
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PLC and HMI interface for operation control, power adjustment, and fault diagnosis.
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Impeders
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Ferrite rods inserted inside the pipe to concentrate current at the weld seam.
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RELATION EQUIPMENT
We provides all equipment to tube mill entry section:
Coil Car
Single And Double Heads Un-coiler & Hydraulic And Pneumatic Un-coiler
Peeler and hold down roll arm
Flattening Machine
Automatic and Semi Auto Shearer & Butt Welder
Vertical Cage Accumulator & Horizontal Loop Accumulator & Landing Horizontal Spiral Loop Accumulator