Spring Properties
These springs, which are generally called coiled springs, flex according to the compressive load.
They come in several shapes depending on their use: conical, barrel-shaped with a bulge in the middle, uneven pitch, long coils (up to 500 meters at Aoi Spring), and so on.
Compression coiled spring with hook
Materials: SWP-B
Wire diameter: Φ2.3mm
Application: Automotive parts
Compression coiled spring with terminal
Materials: SWIC-F
Wire diameter: Φ0.55mm
Application: Home appliances
Elliptical compression coiled spring
Materials: SWP-B
Wire diameter: Φ0.7mm
Application: Motorcycle parts
Ultra-small variable-pitch compression coiled spring
Materials: Elemetal
Wire diameter: Φ0.12mm
Application: Electronic parts
Compression coiled spring with tab
Materials: SUS304-WPB
Wire diameter: Φ2.5mm
Application: Pump parts
Notable Achievements
Track Record by Wire Diameter
φ 0.1 – φ 22.0
Materials Track Record
| SUS304-WPB | SUS304-WPA | SUS316 (chemical-resistant) |
| SUS631 (precipitation hardening) | Monel (chemical-resistant) | Tantalum (chemical-resistant) |
| Monel (chemical-resistant) | Hastelloy (chemical-resistant) | Inconel (for heat resistance) |
| SW-B | SW-C | SWP-A |
| SWP-B | SWP-V | oil-tempered wire |
| zinc-plated wire | nickel plated wire | phosphor bronze |
| beryllium copper | silver solder |
Applications
Automotive
side mirror mechanical components
White goods
switch components
Medical
electric pump components
What Makes Aoi Spring Special
* We produce designs tailored to what the customer wants to do with the spring.
* Since we can also fabricate with special materials, Aoi Spring can handle material qualities suited to the environment where your spring will be used.
* Thanks to our state-of-the-art equipment, we can make springs that normally require an hour to churn out 2,000 units at an accelerated rate of 6,000 springs per hour.
