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Chengdu Morrow Electronic Equipment Factory
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Inverter Pulse TIG Welder
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I. Features
■ Automatic protection from overcurrent, overheat, over/under voltage
■ Support DC TIG welding, pulse TIG welding and MMA welding
■ In TIG welding, can select DC or pulse welding according to the requirements, can adjust the peak/bottom current, pulse duty circle and frequency according to the size of welding seam
■ In TIG welding, HF automatically strikes arc, and extinguish automatically after the arc is successfully stroke, high efficiency
■ With the long/short seam switch and gas/water cooling switch, can make selection according to the actual need
■ Can realize TIG grounding and MMA covering once a time, high efficiency, especially suitable for the welding of thin rare-metal board
II. Main parameters
Type WSM7-315 WSM7-400 WSM7-500
Power source 3-phase 380V 50Hz
Rated input capacity (KVA) 16 22 26
Rated input current (A) 24 34 40
Rated TIG welding current(A) 315 400 500
Welding current 315A 60%DE 400A 60%DE 500A 60%DE
250A 100%DE 315A 100%DE 400A 100%DE
Adjustment range of current (A) 20-315 20-400 20-500
Efficiency 83%
No-load voltage TIG 40-50V
MMA 70-80V
Current up/down-slope time (S) 0-10
Time for pre-gas sending 1S
Time for delay gas sending 5S
Peak//bottom current (A) 20-315 20-400 20-500
Pulse frequency (Hz) 0.25-25
Pulse duty circle (%) 1-99
Dimensions (mm) 380?80?70 550?60?00
Weight (Kg) 35 42 55
Input cable (mm2) 3?+1?.5 3?+1?.5 3?+1?
Insulation class F
Raising means Handle
Protection class IP21
III. Standard configuration
Power source, TIG welding torch and electrode holder
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