Product Description & Feature

	WS7-315	WS7-400	WS7-500
Power	3 phase 380V±10%  50Hz
Rated input power(KVA)	12	16.5	23
Rated duty-cycle (%)	60%	60%	60%
100% load current(A)	271	310	387
Rated welding current(A)	315	400	500
No-load voltage(V)	75	75	75
Output current(A)	20~315	20~400	20~500
Current rise slowly time(S)	0.1~10	0.1~10	0.1~10
Current down slowly time(S)	0.1~10	0.1~10	0.1~10
Gas delay time(S)	0.2~7	0.2~7	0.2~7
Lock mode	lock/unlock	lock/unlock	lock/unlock
Insulation class	F	F	F
Cooling way	air	air	air
Size (L×W×H)(mm)	690×320×560	690×320×560	690×320×560
Weight (Kg)	42.5	44.5	46.5

Technical features: 

1.MMA,TIG two functions

2.HF arc starting success rate 100%

3.Over heat,over current,over under-voltage protection

4.small spatter,easy arc staring,no noise

5.stable arc starting,good welding forming

6.suitable for stainless steel,nonferrous,etc

Standard accessories:

TIG torch 

Earth cable(3m)

 

 

 

 

Please take a little time to read following:

 

·Professional – We focus on manufacturing welding machines for more then 20 years, so we are a very professional factory.

 

· History – My boss ( the owner of the factory) was a technician in China electric welding machine Research Institute, this Institute was located in Shanghai before, but moved to Chengdu because of the war in year 1965.

·Reliable – Just looks like the logo of our company, we want to be the most reliable supplier for you. We do not want to attract the attention of you by unbelievable low price, which use some old, used, poor-quality electronic components. But want to be your reliable, long-term partner. All of our components such as transformer, capacitor, PCB board, IGBT module are bran-new ones.

·Personalize – If your quantity is 100 sets or more then it, you could choose your favourite color for the enclosure. Just let us know the pantone color number.

·Nest-type Beijing Olympic stadium – We are one of welding machine suppliers for Beijing Olympic stadium.

 

·Beginner – We have sales offices in almost every major cities in China, but we just the beginner for abroad selling. Hope you would be our office or agent in abroad.