Radiator Fin CNC Automatic Profile Seam Welding Machine
Product Overview
The Hwashi Radiator Fin CNC Automatic Profile Seam Welding Machine is a precision resistance welding system engineered for the appliance and HVAC industries. Featuring CNC-controlled profile tracing, this machine automatically follows complex geometries to produce consistent, leak-proof seam welds on radiator fins, heat sink plates, and similar thin-walled components with exceptional accuracy and repeatability.
The CNC system controls the welding head's path, speed, and contact force in real-time, adapting to variations in workpiece geometry without manual adjustment. This makes it ideal for multi-model production runs common in the appliance sector, where manufacturers frequently need to switch between different product variants — simply upload a new program and the machine adapts its welding path instantly.
Capable of handling stainless steel, carbon steel, and aluminum materials, this machine serves a wide range of thermal management and heat dissipation applications. Whether you're welding air conditioner condensers, range hood shells, or dishwasher inner tanks, the CNC profile system ensures every weld meets exacting quality standards.
Key Features & Benefits
1. CNC Profile Tracing Control — Precision Path Accuracy
- CNC-controlled X/Y/Z axis motion — welding head follows complex 2D/3D profiles automatically
- Repeatability: ±0.05mm — every weld follows the exact same path, shift after shift
- Automatically compensates for material thickness variations and panel distortion
- Stores unlimited product programs — quick model changeover via touch screen
2. Continuous, Intermittent & Step Seam Welding Modes
- Continuous seam welding — continuous current while workpiece moves; ideal for leak-proof hermetic seals
- Intermittent (stitch) welding — pulsed current with adjustable weld/pause timing; reduces heat input and distortion
- Step welding — current applied when workpiece is stationary; optimal for thick materials and high-strength joints
- One machine handles multiple welding strategies — maximizes flexibility for diverse product requirements
3. Medium-Frequency DC Power Source
- Stable DC output — no current zero-crossing, consistent nugget formation
- Adjustable welding speed — 0.5–5 m/min range for different material gauges and joint requirements
- High power factor design — energy efficient operation with lower operating costs
- Precise current and time control — excellent weld quality on thin gauge materials (0.5–3.0mm)
4. Robust Rolling Electrode System
- Precision-machined copper alloy rolling electrodes — long service life, consistent contact resistance
- Spring-loaded electrode pressure — maintains optimal contact force throughout the seam
- Electrode cooling system (water-cooled) — prevents overheating during extended production runs
- Easy electrode replacement — minimizes downtime during tooling changes
5. Industrial-Grade PLC Control
- Touch-screen HMI — intuitive parameter setup, real-time monitoring, and weld defect alerts
- Weld counter and production tracking — output monitoring for OEE analysis
- RS485/USB/Ethernet interfaces — integrates with factory MES and ERP systems
- Auto-diagnostic functions — fault identification and maintenance reminders
Technical Specifications
| Parameter |
Specification |
| Model |
WL-RH-CNC Series |
| Power Supply |
AC 380V / 50Hz, 3-phase |
| Rated Capacity |
50–150 KVA (model dependent) |
| Output Frequency |
1000Hz (Medium Frequency DC) |
| Max Short-Circuit Current |
25,000–40,000A (model dependent) |
| Welding Speed |
0.5–5 m/min (adjustable) |
| Material Thickness |
0.5–3.0mm (varies by material) |
| Seam Length |
Up to 2000mm (customizable) |
| Profile Control |
CNC 2-axis / 3-axis interpolation |
| Repeatability |
±0.05mm |
| Electrode Type |
Water-cooled copper alloy rollers |
| Control System |
PLC + Touch Screen HMI |
| Cooling System |
Water cooling (built-in) |
| Dimensions |
2500*1500*1800mm (standard, customized) |
| Weight |
1,500–2,500 kg (model dependent) |
