Automated High-Speed Condenser Welding Machine
Automated High Speed Condenser Welding Machine with Adjustable Effective Width for Wire Tube Condenser Production Line
Product Overview
The Automated High Speed Condenser Welding Machine is a gantry-type multi-head spot welding system engineered for high-volume wire-on-tube (WOT) condenser manufacturing. Designed specifically for refrigerator, freezer, and commercial refrigeration production lines, the machine delivers precise, consistent wire-to-tube welds at industrial scale.
Equipped with multiple synchronized welding heads and a servo-driven double-layer feeding system, the machine executes the entire welding cycle automatically after material loading—from wire positioning to multi-point simultaneous welding and fixture exchange. The adjustable effective welding width accommodates a wide range of condenser panel sizes, eliminating the need for dedicated tooling changes between product specifications.
Key Advantages
Fully Automated Welding Cycle
Once the operator loads the serpentine tube and steel wires onto the double-layer feeder and presses the start button, the machine executes the complete welding sequence autonomously—including fixture stepping, multi-head simultaneous welding, and automatic fixture exchange. The dual-layer feeding system allows one fixture to be loaded while the other is being welded, enabling uninterrupted batch production and maximizing throughput.
Adjustable Effective Welding Width
The effective welding width is freely adjustable to accommodate various condenser specifications without mechanical modification. Whether producing narrow condensers for compact refrigerators or wide panels for commercial display coolers, a single machine handles the full product range—reducing capital investment and floor space requirements.
Multi-Head Gantry Welding System
Multiple welding heads operate simultaneously, dramatically reducing cycle time compared to single-head alternatives. Each head is pneumatically actuated with individually controllable welding parameters (current, time, pressure), ensuring uniform weld quality across the entire condenser panel.
Intelligent Welding Parameter Management
- 101 stored welding models with quick-change capability for rapid product changeover
- 3 selectable pressurized curves for different material combinations
- PLC-controlled with color touch screen HMI for intuitive operation
- Password-protected parameter storage prevents unauthorized changes
Superior Weld Quality with MFDC Power
Medium-frequency inverter DC (MFDC) power supply delivers precise, fast current adjustment with minimal thermal impact on surrounding material. Features include higher power factor (0.85-0.90) compared to conventional AC systems, three-phase balanced load with minimal grid interference, and maximum secondary short-circuit current up to 40 KA for reliable wire-to-tube fusion.
Voltage Stability Under Factory Conditions
Built-in network voltage floating compensation ensures that when input power fluctuates within ±10%, the secondary output voltage remains within ±3% of its set value—critical for maintaining consistent weld quality in facilities with unstable power supply.
Technical Specifications
| Parameter |
Specification |
| Model |
WL-SQ-150K*2 (Customizable) |
| Input Power |
Three-phase 380V±10% 50/60Hz |
| Rated Capacity |
150 KVA * 2 (Customizable: 100KVA, 160KVA) |
| Rated Duty Cycle |
50% |
| Secondary Voltage Adjustment |
2 Steps |
| Maximum Secondary Short-circuit Current |
40 KA |
| Transformer Insulation Grade |
Grade F |
| Network Voltage Compensation |
Input ±10% → Output ≤±3% |
| Welder Pressurized Curves |
3 types |
| Storage of Welding Models |
101 types |
| Effective Welding Length |
1500 mm (Customizable up to 2000 mm) |
| Effective Welding Width |
600 mm (Customizable: 600-1200 mm, dual-zone available) |
| Upper Electrode Stroke |
80 mm |
| Lower Electrode Adjustable Stroke |
30 mm |
| Automatic Moving Speed |
200-500 mm/s (adjustable) |
| Control Mode |
PLC + Touch Screen HMI |
| Cooling System |
Water-cooled (transformer, thyristor, electrodes) |
| Machine Dimension |
~6500 * 2500 mm (depends on configuration) |
| Machine Weight |
~1500 kg |
Applications
| Industry |
Typical Products |
| Household Refrigerators |
Wire-on-tube condensers, skin condensers |
| Commercial Refrigeration |
Display cooler condensers, bottle cooler condensers |
| Freezers |
Chest freezer condensers, upright freezer condensers |
| Air Conditioning |
Condenser panels, evaporator coils |
| Heat Exchangers |
Wire-on-tube heat exchangers for various HVAC applications |
| OEM Appliance Manufacturing |
Batch welding of wire to Bundy tube / copper tube |
Weldable Materials
- Steel wire to Bundy tube (邦迪管)
- Steel wire to steel tube
- Copper wire to copper tube
- Aluminum wire to aluminum tube (with proper electrode selection)
Production Workflow
- Load wires onto the first-layer fixture via magnetic wire filling device
- Place serpentine tube onto the wires
- Load top-layer wires over the tube
- Press start — machine executes automatic welding cycle:
- Fixture steps to first welding position
- Multiple welding heads fire simultaneously
- Fixture advances to next position
- Repeat until all welding points completed
- Auto fixture exchange — while one fixture is being welded, the other is being loaded
- Unload finished condenser and restart cycle
Production Line Components
- High-speed wire straightening and cutting machine
- Tube straightening and cutting machine
- Tube bending machine
- Automatic condenser welding machine
- Additional equipment: tube end expanding/shrinking machine, condenser folding machine
We design complete production lines based on your product drawings and efficiency requirements. Simply provide your specifications, and our engineers will develop the optimal solution for your needs.
Wire Tube Condenser Production Process
Dual-fixture system allows simultaneous welding and loading operations. While one fixture undergoes welding, operators load materials onto the second fixture, with automatic fixture exchange to maximize efficiency.