Hwashi Pneumatic Ac pulse Spot Welding Machine for stainless steel
DESCRIPTION OF SPOT WELDING MACHINE
Medium frequency inverter DC resistance control system: Refer to the following picture, the three-phase AC current has been rectified into DC. Then convert into medium frequency 1000Hz square wave and connected into primary of welding transformer through inverter circuit which is composed of IGBT. After the rectification through welding transformer, the current become DC with small pulsation and being supplied to electrode for welding. The inverter will adjust the duty cycle rate of IGBT according to the feedback of primary and secondary welding current so as to achieve constant current during welding process.
SPECIFICATION OF SPOT WELDING MACHINE
| Model | WL-TP-50K | | Input Power | Single-phase 380 V ±10% 50HZ(adjustable) | | Rated Capacity | 50 KVA | | Rated Duty-cycle | 25 % | | Max.Secondary Floating Voltage | 6.75V AC | | Max.Secondary Short-circuit Current | 19500 A | | Transformer Insulation Grade | Grade F | | Heat Control Adjustable Range | 15 % ~ 99 % | | Network Voltage Floating Compensation | When the rated value of network voltage fluctuates within ± 10%, The secondary voltage will be ≤ ±5 % | | Clamping Cylinder | 80 ×50 mm | | Welding Cylinder | 100 ×80 mm | | Electrode Holder | 25 mm | | Max.Length of Welding Stem | 4000 mm (adjustable) | | Rated Bleed Pressure | 0.6 Mpa | | Consumption of Gas | 10 m3/h | | Pressure of Water Source | 0.2 Mpa | | Temperature of Water | 10-20 ºC | | Consumption of Cooling Water | 100 L/H (Recycle use) | |
FEATURES OF SPOT WELDING MACHINE
Multiple times of continuous discharging, finish welding at one time, firm connection.
Be able to achieve welding and cooling at the same time to ensure the welding intensity of products.
Compared with the normal AC controller, MF controller has the following advantages:
- Advanced welding machine, adopt principle of MF inverter . Change the three phase AC power into DC power.
- Welding current is DC , no inductance , higher heat input and output efficiency , more reliable and stable welding quality
- Three phase load balance, power factor is close to 1
- Intelligent digital controller, more precise and faster control of the welding current. The adjustment precision is 20 times higher than the AC machine
- Reduce the production cost, save energy, reduce the requirement for cables and maintenance cost, improve the induction factor.
- Store energy in a special inverter, more adaptation to the fluctuation of the power grid.
- Smaller size and lower weight of welding transformer, one third of the AC machine .
- Be able to weld aluminum and galvanized material product
- Especially suitable for welding three-layer metal sheet or very thin product
Other models:
| Model No. | WL-MF-90K | WL-MF-150K | WL-MF-200K | WL-MF-300K |
| Input power supply | 3~380V | 3~380V | 3~380V | 3~380V |
| Rated capacity | 90KVA | 150KVA | 200KVA | 300KVA |
| Max shot-circuit current | 18KA | 30KA | 45KA | 55KA |
| Duty cycle | 20% | 20% | 20% | 20% |
| Control method | Primary/subprime constant current | Primary/subprime constant current | Primary/subprime constant current | Primary/subprime constant current |
| Inverter frequency | 1kHz | 1kHz | 1kHz | 1kHz |
| Arm length | 220*400mm | 220*400mm | 220*450mm | 220*450mm |
| Max pressure | 6KN | 10KN | 15KN | 20KN |
| Electrode stroke | 60mm | 80mm | 80mm | 80mm |
| Cooling water | ≥8L/min | 12L/min | 12L/min | 14L/min |
| Welding thickness | 3.0+3.0mm | 3.5+3.5mm | 4.0+4.0mm | 4.5+4.5mm |
COMPETITIVE ADVANTAGE
1. HWASHI is the leading brand in resistance welding industry in China for 20 years; Factory direct sale, competitive price.
2. Customized Service: We can help to design and develop the welding machine according to your requirement. We are flexible and capable Supplier.
3. Genuine Product with Excellent Quality: 12 months warranty. Our machines are strictly complied with ISO9001:2000 and China Compulsory Certification. Most of our machines enjoy 8-10 years service life. 100% guarantee test before delivery.
4. After Sales Service and Technical Assistance: 24 hours technical support by email. Our professional team is always here willing to be your technical consultant.
5. Quick Delivery: Our company provides just-in-time delivery.
6. Prompt Response to Customers: Your satisfaction is the goal we pursue.
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Pneumatic AC Pulse Spot Welding Machine 50 KVA For Stainless Steel Images
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