WNJ-A3 is a mobile spring tempering furnace designed for compression, extension, and other shaped springs made of wire up to 1.5 mm and lengths up to 90 mm.
The WNJ-A3 is a portable screw-type spring tempering furnace designed for handling small compression springs, extension springs, and other shaped springs. The unit combines the tempering process with smoke and odor purification, supporting safe and convenient operation in the production environment.
The application range includes springs made of wire up to 1.5 mm and lengths up to 90 mm. The standard tempering time is 5 minutes, which can be extended up to 20 minutes for small springs. The operating temperature range is 0 to 450℃.
With its compact dimensions of 460 × 490 × 770 mm, 2 kW power rating, and 220V / 50–60Hz power supply, the WNJ-A3 performs exceptionally well in the precise heat treatment of fine spring components.
| Model | WNJ-A3 |
|---|---|
| Machine type | Screw-type spring tempering furnace |
| Application | Compression springs, extension springs, and other shaped springs |
| Max. wire diameter | < 1.5 mm |
| Max. spring length | < 90 mm |
| Function | Tempering and smoke/odor purification |
| Tempering time | 5 minutes, up to 20 minutes for small springs |
| Temperature range | 0–450℃ |
| Device dimensions (L × W × H) | 460 × 490 × 770 mm |
| Power | 2 kW |
| Net weight | 75 kg |
| Power supply | 220V / 50–60Hz |
| Manufacturer / brand | WNJ |
|---|---|
| Manufacturer location | Ningbo, China |
| Business type | Manufacturer, exporter |
| Certificates | CE, ECM, technology patent |
| Minimum order quantity | 5 pcs |
| Price | Individually negotiated |
| Delivery time | Individually agreed |
| Payment and delivery terms | 40% deposit before production, 60% balance upon copy of documents |
| Payment method | T/T, L/C |
| Packaging | Wooden crate |
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