Chengdu Xinwei Welding Technology Co., Ltd.
| Dimensions | 1200 x 1500 x 2000 mm |
| Supply Ability | 5 sets/month |
| Capacity | 40-250 KVA |
| Power Input | 3-Phase AC 380V / 220V / 440V |
| Weight | 800 kg |
| Condition | New |
| Function | Projection Welding for Steel Gas Caps and Fuel System Components |
| Payment Terms | L/C,D/A,T/T,D/P |
| Product Name | 50Kv Manual Pneumatic Projection Welding Machine DN40 Steel Gas Cap Resistance Welder |
| Delivery Time | 25-35working days |
| Max Welding Thickness | 6.0+6.0 mm |
| Packaging Details | wooden box |
| Duty Cycle | 50% |
| Warranty | 1 Year Comprehensive Coverage |
| Certification | CE, RoHS, ISO |
| Brand Name | Xingwei |
| Place of Origin | Sichuan, China |
View Detail Information
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Product Specification
| Dimensions | 1200 x 1500 x 2000 mm | Supply Ability | 5 sets/month |
| Capacity | 40-250 KVA | Power Input | 3-Phase AC 380V / 220V / 440V |
| Weight | 800 kg | Condition | New |
| Function | Projection Welding for Steel Gas Caps and Fuel System Components | Payment Terms | L/C,D/A,T/T,D/P |
| Product Name | 50Kv Manual Pneumatic Projection Welding Machine DN40 Steel Gas Cap Resistance Welder | Delivery Time | 25-35working days |
| Max Welding Thickness | 6.0+6.0 mm | Packaging Details | wooden box |
| Duty Cycle | 50% | Warranty | 1 Year Comprehensive Coverage |
| Certification | CE, RoHS, ISO | Brand Name | Xingwei |
| Place of Origin | Sichuan, China | ||
| High Light | manual projection welding machine ，manual projection spot welding machine ，aluminum projection welding machine | ||
This DN40 steel gas cap projection welding machine is a semi-automatic resistance welding solution engineered specifically for fuel tank filling port and gas cap assembly welding. With a rated capacity range of 40-250 KVA and a maximum welding capacity of 6.0+6.0 mm, it delivers precise, repeatable projection welds that meet stringent fuel system sealing requirements. The machine combines pneumatic actuation with an intelligent intermediate frequency controller to ensure consistent weld quality across every production cycle.
Designed for high-volume manufacturing environments, this projection welder integrates energy adaptive control technology and a high-sensitivity workpiece detection system. It automatically compensates for variations in workpiece thickness, while audible and visual alarms immediately signal weld completion for efficient part handling. The rugged, vibration-resistant frame construction with multiple internal reinforcing ribs ensures long-term dimensional stability, making it a reliable choice for zero-defect manufacturing operations in the automotive and metal fabrication industries.
The machine body is engineered with high-rigidity construction and multiple internal reinforcing ribs, precisely machined to support each component's installation and load strength. This design minimizes deformation during the welding process, ensuring consistent electrode alignment and stable weld quality while providing a safe, reliable platform for manual operation.
The upper electrode is pressurized by a gas-liquid booster cylinder with adjustable electrode pressure, achieving high hydraulic output using general air pressure without the need for a separate hydraulic unit. This simplifies the system design, reduces maintenance requirements, and lowers overall operational costs.
An integrated gas storage tank minimizes welding pressure fluctuations, ensuring a stable and consistent welding force throughout each cycle. This directly contributes to uniform weld nugget formation and reduced rejection rates, particularly important for fuel system components requiring leak-proof seals.
The equipment includes air pressure and water pressure switches with audible alarms that effectively prevent welding under low water or air supply conditions. This protective feature safeguards equipment integrity and prevents production of defective welds, eliminating the risk of costly rework and downtime.
The combination of an aluminum alloy cylinder barrel, low-damping sealing rings, and a pilot high-flow electromagnetic directional valve delivers exceptionally fast and smooth electrode movement. This design achieves rapid response and sensitive follow-up performance, enabling extremely high spot welding speeds that boost production throughput.
The secondary circuit adopts pressurized cylinder seat and upper arm insulation, allowing direct installation and welding on the lower seat without short-circuit concerns. The main welding circuit uses a fully water-cooled resistance welding transformer and rectifier, delivering strong output power while maintaining energy efficiency and extending equipment service life.
| Industry | Typical Workpiece | Welding Mode |
|---|---|---|
| Automotive Fuel Systems | DN40 steel gas caps, fuel tank filling ports | Projection Welding |
| Metal Fabrication | Alloy metal flanges, brackets, mounting plates | Projection Welding |
| Aluminum Components | Aluminum gas caps, thin-wall aluminum parts | Resistance Projection Welding |
| Stainless Steel Products | Stainless steel flanges, pressure vessel fittings | Projection Welding |
The projection welding process begins when the operator places the workpiece onto the lower electrode. A high-sensitivity sensor automatically detects the workpiece position, then the gas-liquid booster cylinder drives the upper electrode downward with adjustable force. The external intermediate frequency controller (1-4 kHz) precisely regulates welding current, time, and pressure in real time, ensuring accurate energy delivery to the projection points. As the projections collapse under controlled pressure and heat, a solid-state weld nugget forms, creating a strong, leak-tight joint. After welding, an audible and visual alarm signals completion, and the electrode automatically resets for the next cycle. The integrated gas storage tank stabilizes pressure throughout the process, while the fully water-cooled welding transformer maintains consistent performance during continuous production.
| 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 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 |
| Dimensions | mm | 1200*1500*2000 | 1200*1500*2000 | 1200*1500*2000 | 1200*1500*2000 |
| Weight | kg | 800 | 800 | 800 | 800 |
This machine is designed for welding alloy metals, aluminum, and stainless steel components. It handles steel gas caps with a maximum welding capacity of 6.0+6.0 mm for the DN(B)-250 model, making it highly versatile for fuel system and general metal fabrication applications.
Standard delivery typically ranges from 30 to 45 days depending on the specific model and customization requirements. Please contact our sales team with your model selection and configuration needs to receive an accurate delivery schedule.
Yes, our factory can customize the machine according to your specific requirements, including electrode configuration, worktable dimensions, and automation integration. Share your workpiece drawings and production specifications, and our engineering team will provide a tailored solution.
We provide comprehensive after-sales support including free spare parts, field installation, commissioning, and operator training. Additionally, video technical support and online assistance are available throughout the machine's service life to ensure continuous, reliable production.
The standard configuration operates on 3-phase AC 380V power input. Optional voltage configurations include 220V and 440V to accommodate different regional power supply standards. Please specify your local voltage requirements when placing your order.
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
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