Chengdu Xinwei Welding Technology Co., Ltd.
| Supply Ability | 5 sets/month |
| Capacity | 100-250 KVA Rated Power |
| Power Supply | 3-Phase AC 380V/220V/440V |
| Weight | 950 kg |
| Application | Stainless Steel Shock Absorber & Bracket Welding |
| Machine Type | Pneumatic Projection Spot Welder |
| Dimensions | 1150 x 1300 x 2250 mm |
| Warranty | 1 Year Comprehensive |
| Condition | New |
| Payment Terms | L/C,D/A,D/P,T/T |
| Product Name | Pneumatic Projection Spot Welding Machine 250KVA Stainless Steel Shock Absorber Welder |
| Delivery Time | 25-35working days |
| Max Welding Thickness | Up to 6.0+6.0 mm |
| Packaging Details | wooden box |
| Duty Cycle | 50% |
| Brand Name | Xingweihan |
| Place of Origin | Sichuan, China |
| Certification | CE, RoHS, ISO |
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Product Specification
| Supply Ability | 5 sets/month | Capacity | 100-250 KVA Rated Power |
| Power Supply | 3-Phase AC 380V/220V/440V | Weight | 950 kg |
| Application | Stainless Steel Shock Absorber & Bracket Welding | Machine Type | Pneumatic Projection Spot Welder |
| Dimensions | 1150 x 1300 x 2250 mm | Warranty | 1 Year Comprehensive |
| Condition | New | Payment Terms | L/C,D/A,D/P,T/T |
| Product Name | Pneumatic Projection Spot Welding Machine 250KVA Stainless Steel Shock Absorber Welder | Delivery Time | 25-35working days |
| Max Welding Thickness | Up to 6.0+6.0 mm | Packaging Details | wooden box |
| Duty Cycle | 50% | Brand Name | Xingweihan |
| Place of Origin | Sichuan, China | Certification | CE, RoHS, ISO |
| High Light | pneumatic projection welders ，pneumatic spot projection welding machine ，stainless steel projection welders | ||
This pneumatic projection spot welding machine is purpose-built for high-volume welding of stainless steel shock absorber oil storage cylinder convex rings. Engineered with a rigid tree-style frame and pneumatic transmission, it delivers consistent, repeatable projection welds critical for automotive and industrial suspension component manufacturing.
Available in 100-250 KVA models, this resistance welder integrates a horizontal welding mechanism, fully water-cooled transformer, and precision secondary circuit to support demanding production schedules. The modular design ensures easy integration into existing production lines for shock absorber, bracket, and inner plate welding applications.
The unique tree-style body with internal reinforcing ribs is machined to precise tolerances, minimizing deformation during continuous welding. This ensures stable weld quality and extends equipment service life, reducing maintenance downtime and total cost of ownership.
The upper electrode travels vertically in a linear guide with high repeat positioning accuracy, guaranteeing accurate weld point placement on every cycle. This precision translates to fewer rejected parts and improved first-pass yield for high-tolerance shock absorber assemblies.
An aluminum alloy cylinder with low-damping seals and a pilot high-flow solenoid directional valve enables smooth, rapid electrode movement with sensitive follow-up performance. The result is faster cycle times and higher production throughput without compromising weld integrity.
An electrical proportional valve provides precise, adjustable welding pressure to accommodate varying material thickness and workpiece geometries. This feature enables process flexibility and consistent weld nugget formation, improving overall weld quality for stainless steel applications.
The fully water-cooled resistance welding transformer and rectifier deliver strong output while minimizing energy consumption. Lower electrical demand and efficient cooling reduce operating costs and ensure stable performance during extended production runs.
Air pressure and water pressure switches with audible alarms prevent operation under unsafe conditions, protecting both the equipment and operators. This safety layer reduces the risk of machine damage and unplanned downtime, supporting continuous production schedules.
| Industry | Typical Workpiece | Welding Mode |
|---|---|---|
| Automotive Suspension | Shock absorber oil storage cylinder convex ring | Projection Welding |
| Auto Parts Manufacturing | Bracket and inner plate with protrusions | Projection Welding |
| Metal Fabrication | Stainless steel sheet metal assemblies | Spot Welding |
| Aluminum Components | Aluminum brackets and mounting plates | Projection Welding |
| General Manufacturing | Nut and bracket projection assemblies | Projection Welding |
The projection welding machine operates by applying pneumatic force to press the upper electrode vertically down onto the workpiece with pre-formed projections. Concurrently, a high-current, low-voltage pulse is delivered through the fully water-cooled welding transformer, concentrating heat at the projection points. The projections collapse under pressure and heat, forming a solid metallurgical bond. The auxiliary cylinder enables precise stroke adjustment, while the pressure component allows arbitrary control of head descent and ascent speed to minimize impact and noise. A dedicated gas storage tank stabilizes welding pressure fluctuations, ensuring consistent force throughout each weld cycle.
| Parameter | Unit | DN(B)-100 | DN(B)-160 | DN(B)-200 | DN(B)-250 |
|---|---|---|---|---|---|
| Rated Power | KVA | 100 | 160 | 200 | 250 |
| Power Input | V | 3φAC 380V | 3φAC 380V | 3φAC 380V | 3φAC 380V |
| Max. Short Circuit Current | KA | 30 | 35 | 40 | 45 |
| Duty Cycle | % | 50 | 50 | 50 | 50 |
| Max. Force | N | 6000 | 6000 | 10000 | 15000 |
| Electrode Length | MM | 450 | 450 | 450 | 500 |
| Working Stroke | MM | 80 | 80 | 80 | 80 |
| Cooling Water Consumption | L/min | 20 | 20 | 20 | 20 |
| Max. Welding Capacity | MM | 3.0+3.0 | 4.0+4.0 | 5.0+5.0 | 6.0+6.0 |
| Overall Dimensions | MM | 1150×1300×2250 | 1150×1300×2250 | 1150×1300×2250 | 1150×1300×2250 |
| Machine Weight | KG | 950 | 950 | 950 | 950 |
The maximum welding capacity varies by model: the DN(B)-100 handles up to 3.0+3.0mm, DN(B)-160 up to 4.0+4.0mm, DN(B)-200 up to 5.0+5.0mm, and the DN(B)-250 up to 6.0+6.0mm for mild steel.
Standard configuration is 3-phase AC 380V. Alternative voltage options such as 220V and 440V can be arranged upon request to match your facility's electrical infrastructure.
Yes, our factory can customize the machine based on your workpiece drawings. We have experience welding parts with protrusions on brackets and inner plates up to 4.5mm+2.5mm thick with multiple welding protrusions.
Delivery time depends on configuration and customization requirements. Standard models are typically available within 30-45 days after order confirmation. Contact our sales team for a precise schedule based on your requirements.
We provide field installation, commissioning, and operator training. After-sales support includes video technical assistance, online support, and reliable spare parts supply to keep your production running.
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
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Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
$35000000-$50000000
Employee Number:
70~95
Ecer Certification：
Verified Supplier
Precision Resistance Welding Solutions for Global Manufacturing Chengdu Xinwei Welding Technology Co., Ltd. is a high-tech enterprise specializing in the R&D, manufacturing, sales, and service of resistance welding equipment. We provide reliable, efficient, and customized welding solutions, fr... Precision Resistance Welding Solutions for Global Manufacturing Chengdu Xinwei Welding Technology Co., Ltd. is a high-tech enterprise specializing in the R&D, manufacturing, sales, and service of resistance welding equipment. We provide reliable, efficient, and customized welding solutions, fr...
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