3 Phase Stationary Resistance Spot Projection Welder Stainless Steel Automotive Shock Absorber
This 3-phase stationary resistance spot projection welder is purpose-built for welding the convex ring onto shock absorber oil storage cylinders in automotive applications. The machine integrates a main frame, pneumatic transmission mechanism, horizontal welding mechanism, support components, secondary circuit, welding transformer, welding controller, and water/gas circuit systems. Its tree-style structural design with a horizontal welding configuration is tailored to handle cylindrical automotive components, including those made from stainless steel.
| Items Models | 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 |
A. Optimized for Automotive Cylindrical Components
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Horizontal Welding Configuration: The horizontal mechanism is designed to accommodate the cylindrical shape of oil storage cylinders, supporting stable positioning and consistent weld formation around the convex ring area.
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Three-Phase Power Compatibility: Operating on a 3-phase power supply, the system is configured to deliver stable energy for resistance welding of stainless steel and other automotive-grade materials.
B. Rigid & Vibration-Resistant Structure
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Tree-Style Reinforced Frame: The body is designed with impact and vibration resistance in mind, featuring multiple internal reinforcing ribs to minimize structural deformation during continuous operation.
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Precision-Machined Base: Mechanical finishing ensures proper installation and load-bearing capacity for all mounted components, supporting long-term stability.
C. Accurate Positioning & Pressure Regulation
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Linear Guide Upper Electrode: Vertical movement along a linear guide rail provides repeatable positioning accuracy for consistent weld point placement on each workpiece.
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Electrical Proportional Valve: An integrated proportional valve allows fine adjustment of welding pressure to suit different material grades, thicknesses, and coating conditions.
D. Fast Cycling & Responsive Electrode Movement
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Capacitive Discharge Technology: Utilizes capacitor charging and discharging for rapid weld energy release, resulting in short welding times and improved cycle efficiency.
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High-Speed Pressurization System: The combination cylinder with aluminum alloy barrel, low-damping seals, and pilot-operated high-flow solenoid valve is designed for fast response and sensitive follow-up during the welding stroke.
E. Safe Operation & Equipment Protection
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Insulated Secondary Circuit: The pressurized cylinder seat and upper arm insulation method prevents short circuits when mounting directly on the lower base, simplifying installation and maintenance.
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Foot Switch Control: Operation via foot switch aligns with common operator practices, aiming to reduce fatigue while maintaining production pace.
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Pressure Monitoring Alarms: Air and water pressure switches with alarms help prevent welding under insufficient supply conditions, protecting both equipment and personnel.
F. Efficient Power Delivery with Thermal Management
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Water-Cooled Transformer & Rectifier: The main welding circuit uses a fully water-cooled resistance welding transformer and rectifier, designed for stable power output with effective heat dissipation during extended production runs.
The Upper Electrode
The Pressure Component
Gas Storage Tank
Waterway Components
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