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DB200H Silver Contact Spot Welding Machine
Detail Information
Brand Name
Haifei
Model Number
DB200H
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Product Description
DB200H Silver Contact Spot Welding Machine
Product Overview
Silver contacts are small electrical components with highly process-dependent welding requirements. The DB200H maintains precise contact positioning during electrode pressure while controlling welding current and heat input to achieve optimal joint strength without excessive marking or deformation of copper carriers.
This three-phase AC input system with 1000 Hz medium-frequency inverter DC output provides programmable welding specifications for different contact assemblies. The rigid machine structure ensures electrode alignment during pressurization, making it ideal for manufacturers requiring repeatable resistance welding processes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Equipment Name | Spot Welding Machine |
| Model | DB200H |
| Product Type | Silver Contact Spot Welding Machine |
| Rated Duty Cycle | 20% |
| Transformer Capacity | 240 KVA |
| Cylinder Bore / Stroke | 200 mm / 110 mm |
| Maximum Working Pressure | 15,000 N |
| Maximum Primary Current | 250 A |
| Current Adjustment Range | 0-99% |
| Transformer Insulation Class | Class F |
| Maximum Secondary Short-Circuit Current | 58 KA |
| Lower Electrode Arm Deflection | <0.1 mm at maximum cylinder pressure |
| Output Frequency | 1000 Hz |
Technical specifications are based on DB200H product specifications provided by Haifei. Actual machine configuration may vary according to approved technical proposals and application requirements.
Designed Applications
The DB200H is primarily designed for welding silver or copper contacts onto formed copper electrical parts. Typical workpieces include:
- Silver contacts on copper contact arms
- Copper contacts on conductive copper parts
- Electrical contact components
- Contact assemblies for household electrical products
- Low-voltage electrical contact components
- Customized copper contact assemblies
Final machine configuration depends on contact material, copper carrier, part thickness, contact geometry, welding position, and required joint strength. Haifei recommends testing representative workpieces before finalizing welding parameters, electrodes, and fixtures.
Key Features
1000 Hz Medium-Frequency Inverter DC Welding: Converts three-phase AC input into controlled DC output for precision resistance welding of electrical contact components.
64 Welding Specifications: Controller stores up to 64 welding programs for different contact products, eliminating reliance on single fixed settings.
Three-Stage Heating Control: Supports preheat, weld, and temper stages with incremental or decremental control as required.
High Welding Current Capability: Maximum secondary short-circuit current of 58 KA, selected according to actual contact assembly requirements.
Stable Mechanical Structure: Rigid machine body resists vibration and impact, reducing electrode movement during cylinder pressurization.
Programmable I/O for Automation: Enables communication with PLCs and robotic systems for integration into customized production equipment.
Production Data Traceability: Stores welding-related production data for MES integration and production traceability requirements.
Common Welding Problems & Solutions
Contact Position Shift: Fixture must securely hold both copper component and contact before welding to prevent movement.
Contact Movement During Pressurization: Controlled electrode approach and adequate fixture support prevent pre-weld shifting.
Surface Indentation: Electrode shape, force, and welding energy optimization maintains copper part appearance.
Insufficient Joint Strength: Proper current settings, electrode force, and surface preparation ensure adequate welding strength.
Excessive Heating: Multi-stage heating control prevents marks and deformation of copper carriers.
Electrode Wear: Established inspection and maintenance intervals maintain consistent contact area and current concentration.
Frequently Asked Questions
What materials can the DB200H weld? Primarily silver or copper contacts welded to copper electrical parts. Material combinations and thickness should be evaluated before production.
What is the welding frequency? 1000 Hz medium-frequency inverter DC output.
How many welding programs can be stored? Up to 64 sets of welding specifications for different products or process conditions.
Can it weld contacts for circuit breakers and relays? These applications can be evaluated based on contact material, copper carrier, joint structure, electrode access, and production output requirements.
How is surface indentation controlled? Through optimized electrode geometry, welding force, and heat input developed according to appearance requirements.
Can it integrate with PLC or robot systems? Yes, through programmable I/O functions for complete production process automation.
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