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Sichuan Morrow Welding Development Co., Ltd.

Welding Machine, Square-Wave Welder, Saw Welding Machine manufacturer / supplier in China, offering WS7 Series IGBT Inverter HF TIG Welder (WS7-400), IGBT Inverter Gas Plasma Cutting Machine (LGK-200), IGBT Inverter Gas Plasma Cutter (LGK-100) and so on.

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Supplier Homepage Product IGBT inverter TIG Welding Machine WS7 Series IGBT Inverter HF TIG Welder (WS7-400)

WS7 Series IGBT Inverter HF TIG Welder (WS7-400)

FOB Price: US $720 / Set
Min. Order: 5 Sets
Min. Order FOB Price
5 Sets US $720/ Set
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Production Capacity: 200pcs/year
Transport Package: Carton
Payment Terms: T/T

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Basic Info
  • Model NO.: WS7-400
  • Current: Inverter Current
  • Application: All
  • Size: 590*306*500
  • Trademark: MORROW
  • Origin: China
  • Type: ARC Welders
  • Model: Ws7
  • Color: blue
  • Power: 3-Phase 380V/415V
  • Specification: ISO9001
  • HS Code: 8515319000
Product Description
1. Adopt the soft switch technology, high efficiency, low power consumption
2. Automatic protection from overcurrent, overheat, over/under voltage
3. Support TIG welding and MMA welding
4. Up/down-slope of welding current continuously adjustable, pre-gas sending and delay gas sending
5. HF automatically strikes arc, and automatically extinguishes after the arc is successfully stroke
6. In TIG welding, the long/short seam switch can support the switch between continuous welding and discontinuous welding. The build-in circuit guarantees a good arc-ignition and crater filling, and endows the machine with such features as easy to start arc, arc heat concentrated, good gas protection result, etc.
7. In MMA welding, can be used together with all kinds of electrode with a diameter below 0.5mm. In TIG welding, can weld stainless steel, alloy steel, copper, silver, titanium
8. With arc-striking current adjustment switch, can easily adjust the arc-striking current, optimize the arc ignition effect. The pushing current adjustment knob can strengthen the arc force and prevent the welding electrode stuck to workpieces
9. Can be equipped with the distance control box to realize distance control, simplify the operation
10. Can be used in welding the stainless steel parts, pressure container and pipeline, realize TIG grounding and TIG covering once a time, greatly improve the working efficiency
11. A voltage fluctuation of ± 20% is allowable

WS7 Series IGBT Inverter HF TIG Welder (WS7-400)

Power source3-phase 380V/415V 50Hz
Rated input capacity12.2KVA17.3 KVA23.7 KVA
Rated input current18.6A26.3A36A
Rated welding current315A400A500A
Welding current315A 60%DE400A 60%DE500A 60%DE
250A 100%DE315A 100%DE400A 100%DE
Adjustment range of current20-315A20-400A20-500A
No-load voltageTIG40-50V
Current up/down-slope time0-10S
Time for pre-gas sending1S
Time for delay gas sending5S
Dimensions (mm)500×260×360550×260×360
Weight (Kg)354055
Air switch32A32A40A
Input cable (mm 2 )3×4+1×2.53×4+1×2.53×6+1×4
Insulation classF
Protection classIP21
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