Chengdu Xinwei Welding Technology Co., Ltd.
| Rated Power | 100-250 KVA |
| Machine Weight | 900 kg |
| Warranty | 1 Year |
| Delivery Time | 25-35working days |
| Packaging Details | wooden box |
| Max Electrode Force | 6000-15000 N |
| Supply Ability | 5 sets/month |
| Product Name | Stationary Spot Welder Double Head Projection Machine For Steel Drum |
| Duty Cycle | 50% |
| Max Welding Thickness | 6.0+6.0 mm |
| Cooling Consumption | 20 L/min |
| Power Input | 380V, 220V, 440V |
| Working Stroke | 80 mm |
| Payment Terms | D/A,L/C,D/P,T/T |
| Brand Name | Xinwei |
| Certification | CE, RoHS, ISO |
| Place of Origin | Sichuan, China |
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Product Specification
| Rated Power | 100-250 KVA | Machine Weight | 900 kg |
| Warranty | 1 Year | Delivery Time | 25-35working days |
| Packaging Details | wooden box | Max Electrode Force | 6000-15000 N |
| Supply Ability | 5 sets/month | Product Name | Stationary Spot Welder Double Head Projection Machine For Steel Drum |
| Duty Cycle | 50% | Max Welding Thickness | 6.0+6.0 mm |
| Cooling Consumption | 20 L/min | Power Input | 380V, 220V, 440V |
| Working Stroke | 80 mm | Payment Terms | D/A,L/C,D/P,T/T |
| Brand Name | Xinwei | Certification | CE, RoHS, ISO |
| Place of Origin | Sichuan, China | ||
| High Light | stationary spot welder resistance ，resistance projection welding machine ，440v stationary spot welder | ||
This intermediate frequency inverter DC dual-head projection welding machine is purpose-built for welding lever lock rings on steel drums. The workpiece surface is galvanized coated or chrome plated, and the machine delivers consistent, high-quality welds essential for steel drum manufacturing. System components include the main frame, pneumatic transmission mechanism, welding positioning fixture, secondary circuit, welding transformer, welding controller, and water/gas circuit systems.
With rated power from 100 to 250 KVA and maximum welding capacity of 6.0+6.0 mm, this stationary projection welder is engineered for demanding sheet metal fabrication environments. Its rugged construction, precise electrode control, and high-speed capacitive discharge provide exceptional productivity for multi-spot welding operations. The machine supports 380V, 220V, or 440V input, ensuring compatibility with global production facilities.
The machine adopts a unique tree-style overall structure engineered for impact resistance, shock resistance, and high rigidity. Multiple reinforcing ribs are welded inside the frame to ensure equipment stability during operation, minimizing slight deformation during welding and ensuring consistent weld quality and safe manual operation.
The upper electrode moves vertically in a linear guide with high repeated positioning accuracy, ensuring precise and accurate weld points every cycle. This translates directly to consistent nugget formation and repeatable weld quality across high-volume production runs.
Electrode pressurization is smooth and fast, featuring an aluminum alloy cylinder barrel with low-damping sealing rings and a lightweight friction ring combination cylinder. Paired with a pilot high-flow electromagnetic directional valve, it achieves faster response speed and extremely sensitive follow-up performance for maximum spot welding speed.
The main welding circuit uses a fully water-cooled resistance welding transformer and rectifier, delivering strong output power while minimizing energy consumption. Capacitive charge-discharge technology provides fast welding speed with short welding time and high efficiency, reducing overall production cost per weld.
The secondary side circuit adopts a pressurized cylinder seat and upper arm insulation method, allowing direct installation and welding on the lower seat without short-circuit concerns. An electrical proportional valve precisely adjusts welding pressure while pneumatic and hydraulic pressure switches with alarms effectively prevent water shortage or gas failure, protecting equipment safety.
Operation is controlled by a foot switch, delivering high production efficiency with low operator fatigue. This conforms to natural operating habits and allows operators to maintain both hands free for workpiece positioning, significantly improving throughput in continuous production environments.
| Industry | Typical Workpiece | Welding Mode |
|---|---|---|
| Steel Drum Manufacturing | Lever lock rings, drum lids, galvanized sheets | Projection welding / Multi-spot welding |
| Sheet Metal Fabrication | Steel plates, brackets, structural components | Spot welding / Projection welding |
| Metal Packaging Industry | Chrome-plated or galvanized container parts | Dual-head projection welding |
| Automotive Components | Metal brackets, reinforcing plates, mounting tabs | Multi-electrode resistance welding |
The dual-head projection welding machine operates on the resistance welding principle. The workpiece is clamped between two electrodes, and high current passes through the projection points where electrical resistance generates intense localized heat. The intermediate frequency inverter converts AC power to DC current, providing precise control over welding current and time. The pneumatic system applies controlled force through the upper electrode, while the capacitive discharge delivers rapid energy for short welding cycles, creating strong metallurgical bonds at each projection point. The lower electrode seat remains stationary while the upper electrode descends via linear guides, ensuring accurate alignment and consistent weld quality across both heads simultaneously.
| 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 (L×W×H) | mm | 1300×1200×2100 | 1300×1200×2100 | 1300×1200×2100 | 1300×1200×2100 |
| Machine weight | kg | 900 | 900 | 900 | 900 |
The machine is designed for galvanized coated and chrome plated steel surfaces, commonly used in steel drum manufacturing. It can weld metal steel sheets up to a maximum combined thickness of 6.0+6.0 mm (model DN(B)-250), making it ideal for lever lock rings and sheet metal components.
The standard configuration operates on 3-phase AC 380V input. Custom voltage options include 220V and 440V, allowing the machine to be integrated into production facilities worldwide without additional transformer costs.
The dual-head configuration allows two projection welds to be completed simultaneously in a single machine cycle. Combined with the high-speed capacitive discharge system and rapid pneumatic response, this significantly reduces cycle time per workpiece compared to single-head alternatives, increasing overall throughput in high-volume production.
The equipment includes pneumatic and hydraulic pressure switches with audible alarms to prevent water shortage or gas failure conditions. The secondary circuit uses insulated upper arm construction to prevent short circuits, and multiple reinforcing ribs in the frame provide structural safety. Duty cycle is rated at 50% for continuous reliable operation.
Yes, our factory can customize the machine according to your specific workpiece dimensions, electrode configurations, and production requirements. Custom welding positioning fixtures and automation integration options are available. Contact our engineering team with your drawings for a detailed proposal.
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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