The welding machine adopts IGBT high-frequency inverter technology, power frequency 3phase 380V or single phase 220V power input, after direct rectification, the inverter consisting of IGBT and other devices become high frequency AC. High frequency AC electricity obtained after
the inverter is reduced voltage by high frequency transformer. After the high-frequency rectifier rectifies filter, the output of DC current is suitable for welding, or the 50 to 150 Hz AC-wave current can be adjusted by the secondary inverter. Manual arc welding, DC constant current argon arc welding, DC pulse argon arc welding, AC constant current argon arc welding, AC pulse argon arc welding, used for welding carbon steel, copper,
titanium, aluminum and aluminum-magnesium alloy and other Materials. The welder improves the dynamic response of the welder, reduces the volume and weight of the transformer, reactor, and improves the efficiency of the transformer.
2. Good control adjustment performance, multifunctional - easy to use;
3. The foot switch control can be used to adjust the welding current;
4. High power factor, adopting passive power factor correction;
5. Easily arcing, stable arc, high welding quality;
6. Welding full-function design, integrated with AC argon arc, DC pulse argon arc, hand
arc welding, etc. is applicable to various welding process requirements;
7. It can weld aluminum and aluminum alloy, carbon steel, stainless steel, alloy steel, copper, titanium and other metals.
Model | TIG-200P AC DC | TIG-250P AC DC | TIG-315P AC DC |
Input Voltage | 1 Phase 220V 50/60Hz | 3 Phase 380V 50/60Hz | |
Rated Input Power | 6KW | 7KW | 12KW |
No Load Voltage | 56V | 56V | 56V |
Current Range | 10-200A | 10-250A | 10-315A |
Up Slope Time | 0.1-5S | ||
Duty Cycle | 60% | 60% | 60% |
Insulation | IP21S |





Product Paramenters:
Model | TIG-315P/PW AC DC | TIG-400P/PW AC DC | TIG-500P/PW AC DC |
Voltage | 3 phase 380V | 3 phase 380V | 3 phase 380V |
Output Current | 10-315A | 10-400A | 10-500A |
Cooler | Air/Water | Air/Water | Air/Water |
Rated Duty Cycle | 60% | 60% | 60% |
No Load Voltage | 46V | 65V | 65V |





Shanghai Sanyu Industry Co., Ltd is one of the leading AC drive, power inverter, high frequency inverer and soft starter and welding machine manufactures and exporters in Shanghai China, which has about 20 years history in this field.
Our inverter and soft starter were used in "Shanghai Expo Pavilion, Shanghai Air Port" etc.
We possess CE, ISO9001, SGS, CCC certificate and so on.
We successfully developed AC drives as SY2000series,SY5000, series, SY6000 series, SY8000 Series and SY8600 series, and SY9000 series.







1. Factory or trade company only? What certifications do you get?
A: We are factory absolutely. And we have CE, ISO9001, SGS, CCC.
Q2. Can I be your sale agent in our market?
A: Why not, welcome. Email me now if you are interested.
Q3. What is your MOQ?
A: The Minimum Order Quantity is 1 set.
Q4. What will your company do for the warranty?
A: All the goods are 100% quality testing before shipping. We'll offer 12 or 18 month warranty.During the
warranty period,if goods have any quality problem without any human factors, we'll send parts for your repair and replace.
Q5. Can you accept OEM orders?
A: Yes, OEM/ODM orders are highly welcome.
Q6. what's the payment term?
A: We accept T/T, L/C, West Union, Cash, etc.
Usually, T/T 30% deposit and 70% balance before shipment or against copy of B/L. 100% for at sight LC.
Q7. What package standard?
A: For small capacity,we packed with carton,but for big capacity,we can make the pallet or use strong
wooden case to distinguish and protect the goods.
Q8. why choose us ?
A: 1. Famous brand in china for 10 more years ---- Sanyu
2.Easy operating system ---- Easy but effective software, gentle touch achieves
3. Stable performance ---- best famous compenents ensure the quality all the time
4. Excellent aftersales service ---- 24*7 hours online serive, never leave you alone.
5. Fast delivery ---- cheap & safe delivery, we look after it all the time
Q9. What is your production capacity?
A: 3000 sets per month, could provide customerlized package upon requests.
Q10. How to contact you?
Tel/Whataspp : +8613331816675