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Hot Wound Coil Spring
Characteristic
- Springs are molded in the hot state using materials with a diameter of 10mm or above
- Materials have rectangular and circular cross-section, etc.
- Cylindrical shape is the most common. Cone-shaped or hourglass-shaped springs for special purposes are also available.
Production video
Application
Cars
Railroad Cars
Construction Equipment
Marine Engine Valves
Anti-vibration Devices
Pipe Hanger
Industrial Machinery
Nuclear Power Plants
Material
| KS(Korea) | JIS(Japan) | SAE(USA) |
|---|---|---|
| SPS 5~5A | SUP 9~9A | 5155~5160 |
| SPS 6 | SUP 10 | - |
| SPS 7 | SUP 11A | 51B60 |
| SPS 8 | SUP 12 | 9254 |
For the design and materials of springs, please consult with our technical sta.
Order Specification
(a)Butt end(not ground)
(b)Butt end(ground)
(c)Butt end(tapered)
(d)Bevelling(grind)
(e)Bevelling(not ground)
(f)Tangent Tail EndMatters to record when placing an order
| Standing | Item | Labeling Requirements | Remark |
|---|---|---|---|
| 1 | Material | Calculation based on manufacturer standards unless otherwise specied | |
| 2 | Wire Dia (d) | mm | |
| 3 | Mean Dia (Dm) | mm | Selection between DE or DI |
| 4 | Out Dia(Do) | mm | DE tolerance management according to assembly conditions |
| 5 | Inside Dia(Di) | mm | DE tolerance management according to assembly conditions |
| 6 | Active Turn(Na) | Coil | As per the design standard of manufacturer |
| 7 | Total Turn(Nt) | Coil | As per the design standard of manufacturer |
| 8 | Direction of wind | Left · Right | As per client's request |
| 9 | Free Height(Ho) | mm | Spring for load management and reference to |
| 10 | Spring Rate(K) | kgf / mm | |
| 11 | Load Condition | mm, kgf | As per client's request |
| 12 | Type od Ends | Butt end, Taper | As per client's request |
| 13 | Hardness | HB 388 ~ 514 | Specied by manufacturer |
| 14 | Carry Out | Shot-peening | |
| 15 | Finish | Enamel, Power, Phosphate | As per client’s request |
| 16 | Application and Working Conditions | Labelling requirement by client | Application, Working Temperature, Humidity and Working Environment |
| 17 | Other Standards | KS B2402, KS B2403 |