HYWH-220Rebar Processing
Tunnel Support Mesh Welding Machine
Gantry-type CNC mesh welder for tunnel and coal-mine support mesh: wire 4–8 mm, 35–45 welds per minute.
Tunnel Support Mesh Welding MachineHYWH-220
4–8 mmWire diameter
35–45/minWelding frequency
8 levelsAdjustable welding stages
2200 kgWeight
Overview
The HYWH-220 is a production line for support mesh used in coal mines, tunnels and bridges. It welds fast, holds grid size accurately and makes strong welds, replacing hand tying and manual welding with a more energy-efficient and cleaner process. PLC programming and a touch screen set the welding parameters, and a servo motor pulls the mesh automatically.
Key features
- Reinforced one-piece gantry; upper electrodes pressed directly by three-layer cylinders for higher unit pressure.
- Welding parameters of each head adjustable independently, eliminating current shunting.
- Heads weld from the centre outward or from the edges inward to suit the product.
- Multi-stage water-cooled transformers; water and air combined cooling for 24 h duty.
- Servo-motor automatic mesh pulling.
Specifications
| Parameter | Value |
|---|---|
| Model | HYWH-220 |
| Type | Gantry mesh welder, CNC, pneumatic |
| Welding width | 1500 mm |
| Wire diameter | 4–8 mm (up to 12 mm on request) |
| Mesh opening | 80 × 80 – 200 × 200 mm |
| Welding heads | 8 |
| Main motor | 4 kW, variable frequency |
| Welding transformer | 120 kVA |
| Mesh sheet size | 1.2 × 2 m / 1.2 × 3 m / 1.5 × 3 m |
| Welding points | 6 / 8 / 10 |
| Welding speed | 35–45 times/min |
| Adjustable stages | 8 (customisable) |
| Input voltage | 380 V, 50 Hz |
| Cooling | Water and air combined |
| Duty cycle | 24 h |
| Dimensions (L × W × H) | 2150 × 2200 × 1370 mm |
| Weight | 2200 kg |
Working conditions
| Condition | Requirement |
|---|---|
| Altitude | ≤ 2000 m |
| Ambient temperature | 4–39 °C |
| Air humidity | ≤ 85% |
| Cooling water inlet temperature | 4–45 °C |
Applications
Tunnel support meshCoal-mine support meshBridges and slabsFence and floor-heating mesh
REBAR
