Sinopec Sundy Pva 088-35,Wanwei Pva 2088,Changchun Pva Bp-20,Shuangxin Pva 088-35 Saint Petrochemicals Limited , https://www.saintpec.com
**Model NO.: WSM7-400**
**HS Code: 8515319000**
**I. Features**
1. Advanced automatic protection system that safeguards against overcurrent, overheating, overvoltage, and undervoltage.
2. Easy arc initiation with a stable and concentrated heat source, ensuring high-quality welds.
3. Fully adjustable settings for peak and bottom values of pulse, pulse frequency, duty cycle, and maintaining current.
4. Supports multiple welding modes including DC TIG, Pulse TIG, and MMA (Manual Metal Arc) welding.
5. Incorporates all the advanced functions of the WS7 series, offering superior performance and reliability.
**Technical Specifications**
| **Parameter** | **Description** |
|-----------------------------|------------------------------------------|
| Power Source | 3-phase 380V / 415V / 220V, 50Hz |
| Rated Input Capacity | 17.3 KVA |
| Rated Input Current | 26.3 A |
| Rated Welding Current | 400 A |
| Welding Current (Adjustable)| 400 A @ 60% DE, 315 A @ 100% DE |
| Current Adjustment Range | 20 - 400 A |
| Efficiency | 83% |
| No-Load Voltage (TIG) | 40 - 50 V |
| No-Load Voltage (MMA) | 70 - 80 V |
| Current Up/Down-Slope Time | 0 - 10 seconds |
| Pre-Gas Time | 1 second |
| Delay Gas Time | 5 seconds |
| Arc Start Method | HF (High Frequency) |
This welding machine is ideal for industrial and professional use, offering flexibility, precision, and durability. Whether you're working on thin materials or heavy-duty applications, the WSM7-400 delivers consistent and reliable performance. Its compact design and high efficiency make it suitable for various workshop environments.