Miniature power springs are commonly used in badge reels and access card retractors to rewind cord, wire, or small straps after extension. The spring must provide enough return torque while keeping pull force comfortable for daily use.
Badge reels look simple, but their spring design affects user feel, retraction speed, noise, and service life. A custom spring may be needed when the product has special size, branding, cord length, or durability requirements.
Quick answer: what spring is used in a badge reel?
Many badge reels use a small power spring or spiral spring. It stores energy when the cord is pulled out and returns torque to retract the cord.
Common applications
- Badge reels
- Access card retractors
- ID holder retractors
- Small key retractors
- Compact promotional retractable products
Design parameters
| Parameter | Why it matters |
|---|---|
| Cord length | Determines working turns. |
| Return force | Affects user feel and complete retraction. |
| Housing diameter | Limits spring size. |
| Cycle life | Important for daily use products. |
| Noise | Influences perceived product quality. |
Quality considerations
A badge reel spring should retract consistently after repeated pulls. If torque is too high, the cord may snap back too quickly. If torque is too low, the badge may hang loosely. Lubrication, housing clearance, cord routing, and stop design should be tested together.
FAQ
Can badge reel spring torque be customized?
Yes. Torque can be adjusted by changing the spring material, strip size, coil design, and working turns.
What makes a badge reel fail?
Common causes include spring fatigue, cord wear, poor housing clearance, excessive pull length, and weak end fixing.
Can Shenzhen Leading Spring make small power springs?
Yes. Custom small power springs can be developed for compact retractable products and accessories.