Chengdu Xinwei Welding Technology Co., Ltd.
| Supply Ability | 5 sets/month |
| Primary Voltage | 220V/380V/415V |
| Advantage | Welding Firmly |
| rated duty cycle | 50% |
| After Warranty Service | Video technical support, Online support and Spare parts |
| Product name | Projection Welder Cnc Automatic Piston Rod Resistance Welding Machine |
| warranty | 1 Year |
| Delivery Time | 25-35working days |
| rated capacity | 40-250KVA |
| After-sales Service Provided | Free spare parts, Field installation, commissioning and training |
| Payment Terms | D/A,T/T,D/P |
| power (kw) | 100 W |
| Packaging Details | wooden box |
| dimensions | 2600*1600*1900mm |
| Place of Origin | Sichuan, China |
| Brand Name | Xinwei |
| Certification | CE, RoHS, ISO |
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Product Specification
| Supply Ability | 5 sets/month | Primary Voltage | 220V/380V/415V |
| Advantage | Welding Firmly | rated duty cycle | 50% |
| After Warranty Service | Video technical support, Online support and Spare parts | Product name | Projection Welder Cnc Automatic Piston Rod Resistance Welding Machine |
| warranty | 1 Year | Delivery Time | 25-35working days |
| rated capacity | 40-250KVA | After-sales Service Provided | Free spare parts, Field installation, commissioning and training |
| Payment Terms | D/A,T/T,D/P | power (kw) | 100 W |
| Packaging Details | wooden box | dimensions | 2600*1600*1900mm |
| Place of Origin | Sichuan, China | Brand Name | Xinwei |
| Certification | CE, RoHS, ISO | ||
| High Light | projection welder cnc ，pneumatic projection welder ，pneumatic projection welders | ||
This projection welding machine is specifically engineered for high-precision piston rod welding. It is widely used in the production of components for automobiles, motorcycles, hydraulic and pneumatic systems, engineering machinery, and automotive manufacturing. The machine accommodates a wide range of workpiece configurations and supports different center distances, piston rod diameters, and ring shapes.
Advanced medium-frequency DC technology ensures consistent weld quality with minimal ring deformation and stable center-to-center distance after welding. The piston rod surface remains free of visible marks, making this system ideal for heavy-duty, high-volume production environments.
Smart motors or valves control welding pressure with only 1% error, ensuring consistent weld quality across every workpiece.
Automated material handling with vision-based alignment or mechanical fixturing enables uninterrupted batch welding, increasing throughput by 40% while maintaining positional accuracy within ±0.1 mm.
Multiple welding parameter sets such as pressure, current, and time curves can be stored and switched with one click for different piston rod specifications. Real-time monitoring alerts operators to abnormalities automatically.
Compatible with piston rods of various specifications; water-cooled electrodes and high-temperature-resistant construction support continuous operation without performance degradation.
Integrated air and water pressure sensors automatically shut down the machine in case of water shortage or insufficient pressure. Modular design minimizes electrode replacement and maintenance time.
| Industry | Typical Workpiece | Welding Mode |
|---|---|---|
| Automotive | Shock absorber piston rods | Medium frequency projection welding |
| Motorcycle | Suspension piston rods | Medium frequency projection welding |
| Hydraulic and pneumatic systems | Cylinder piston rods and ring parts | Projection welding with servo pressure control |
| Engineering machinery | Heavy-duty piston rods, coupling rings | Automated multi-projection welding |
The workpiece is loaded between electrodes and pressed by precise pneumatic force at the projection points. A high-current, low-voltage medium-frequency DC pulse passes through the contact area, generating resistance heat that fuses the material. The control system regulates current, pressure, and time in real time, producing consistent weld nuggets with minimal deformation. Automated loading and unloading complete the cycle for continuous production.
| Parameter | Unit | DN-40 | DN-63 | D(T)N-80 | D(T)N-100 | D(T)N-125 | D(T)N-160 | D(T)N-200 |
|---|---|---|---|---|---|---|---|---|
| Rated Power At 50% | KVA | 40 | 63 | 80 | 100 | 125 | 160 | 200 |
| Rated Primary Power | V | 380 | 380 | 380 | 380 | 380 | 380 | 380 |
| Secondary Voltage | V | 5.2 | 6.7 | 7.9 | 8.3 | 8.6 | 9.1 | 10.6 |
| Rated Frequency | Hz | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 |
| Max. Short Circuit Current | KA | 14 | 15 | 16 | 18 | 20 | 28 | 34 |
| Max. Weld Power | KVA | 62 | 86 | 170 | 280 | 300 | 330 | 410 |
| Throat | mm | 400 | 400 | 400 | 450 | 450 | 450 | 450 |
| Max. Force at Electrodes | N | 6000 | 6000 | 10000 | 10000 | 10000 | 12000 | 12000 |
| Working Stroke | mm | 20 | 20 | 30 | 40 | 40 | 50 | 50 |
| Cooling Water Consumption 2.5bar | L/min | 6 | 6 | 8 | 8 | 8 | 10 | 10 |
| Electrodes Tip | mm | Φ13*45 | Φ13*45 | Φ16*45 | Φ16*45 | Φ16*45 | Φ20*45 | Φ20*45 |
| Arms | mm | Φ50*150 | Φ50*150 | Φ80*220 | Φ80*220 | Φ80*220 | Φ80*220 | Φ80*220 |
| Projection Clamping Plate | mm | 125*125 | 125*125 | 200*200 | 200*200 | 200*200 | 200*200 | 200*200 |
| Max. Welding Capacity A3 Steel | mm | 2.5+2.5 | 3+3 | 4+4 | 4.5+4.5 | 5+5 | 5+5 | 6+6 |
This machine is designed for piston rod projection welding with A3 steel capacity up to 3.0+3.0 mm on the standard model, and up to 6.0+6.0 mm on larger power frequency models.
Yes. The system can integrate automated material handling, an independent vibration disc that holds up to 500 workpieces, and fully automatic welding, achieving up to 720 pieces per hour.
The human-machine interface stores hundreds of process formulas. Operators can switch specifications with one click, and the machine automatically adjusts welding parameters and moving components.
We provide free spare parts, field installation, commissioning, training, online and video support, plus a 1-year warranty. Our overseas technical teams can also provide on-site service in many countries.
Yes. Water-cooled electrodes, high-temperature-resistant components, and automatic air/water pressure safety shutdown ensure stable performance during long production runs.
Send us your workpiece drawings and production requirements. Our engineering team will evaluate your application, configure the optimal solution, and provide a detailed proposal with electrode design and automation integration options.
Send Drawing | Request Welding Test | Get Custom Solution
Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
$35000000-$50000000
Employee Number:
70~95
Ecer Certification：
Verified Supplier
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