Custom Stainless Steel Miniature Double Arm Torsion Spring Multi-Bend Torsion Spring CNC Precision Spring Manufacturer

Product Description

This special shape double arm torsion spring is precision manufactured by our CNC spring workshop. It features multi 异形 bent double torsion arms to meet unique assembly reset and torque requirements. Constructed from 304 stainless steel spring wire, the spring retains natural bright stainless surface without extra electroplating treatment, delivering reliable anti-rust and corrosion resistance in humid and weakly corrosive environments.

Our production workflow includes CNC coiling of the spiral coil body, multiple complex bending forming for double arms, deburring, stress-relief tempering for shape stabilization, full dimensional and torque inspection & sorting.

As a professional custom spring manufacturer, we accept custom service and OEM orders. Send us your drawings or physical samples, and our engineering team will replicate or optimize miniature custom torsion springs for your equipment projects.

Technical Specifications

Product Name: Miniature Double Arm Torsion Spring

Material: 304 Stainless Steel Spring Wire

Wire Diameter: 0.45 mm

Number of Coils: 2 coils

Outer Diameter of Spring Coil: 4 mm

Overall Dimension: Length 10 mm, Width 9.8 mm, Height 6.5 mm

Surface Treatment: Stainless Steel Bright Finish, No Additional Plating

Tolerance: Dimension tolerance ±0.05mm, Torque tolerance ±10%, Arm bending angle ±3°

Process: CNC coiling → Multi-bend forming → Deburring → Stress relief tempering → Full inspection & sorting

Feature: Miniature size, complex double arm geometry, stable torsion performance

Applications

This miniature custom torsion spring is widely applied in small electronic devices, precision household hardware, office equipment components, small locking structures, automation micro-mechanisms, medical miniature instruments, consumer appliance hinges and micro switch reset assemblies. It provides stable rotary reset, positioning and torque output in compact installation spaces.

Custom & OEM Service

We provide full custom service and OEM manufacturing for all kinds of custom double arm torsion spring, special shape torsion spring and miniature custom torsion spring.

1. Custom based on your 2D/3D CAD drawings, sketches or physical samples
2. Custom material selection: 304, 316 stainless steel, carbon spring steel upon request
3. Custom wire diameter, coil size, arm bending shape, torque and free angle
4. Prototype sampling service for pre-production verification
5. Small batch trial order and mass production support
6. Custom surface treatment and packaging options

Key Advantages

• Solve tight space installation pain point: miniature size with complex multi-bend arms to fit limited assembly space where standard torsion springs cannot install.
• Avoid premature rust failure: natural 304 stainless bright finish, no plating peeling risk, stable corrosion resistance for humid working environments.
• Eliminate spring deformation issue: stress-relief tempering removes processing stress, preventing torque drift and shape change after repeated twisting cycles.
• Consistent output torque: strict full inspection on dimensions and torque, reducing defective rate and assembly failure caused by unstable spring force.
• Flexible custom service: no need to modify your product structure; we tailor the special shape torsion spring to match your existing design via OEM custom service.

Quality Control

1. Raw material incoming inspection: verify stainless steel material certification before production.
2. In-process inspection during CNC coiling and arm bending to control dimension deviation.
3. Stress relief tempering process monitoring to stabilize elastic performance.
4. 100% final inspection: dimensional check and torque testing, defective springs sorted out.
5. Batch record retention and material traceability. Inspection reports can be provided upon request.

Shipping & Delivery

Sample lead time: 3-7 working days after drawing/sample confirmation

Mass production lead time: 10-20 working days based on order quantity and spring complexity

Shipping: Worldwide delivery supported by air express, sea freight. We can ship to your designated freight forwarder.

Packaging: Anti-rust packaging for small precision springs to avoid scratch and deformation during transit.

Frequently Asked Questions(FAQ)

1. Can you manufacture custom double arm torsion spring according to my sample or drawing?
   Yes, we are a custom spring manufacturer, we provide custom service and OEM production. Send your samples or CAD drawings for quotation and sampling.
2. What material options are available for miniature custom torsion spring?
   Main material includes 304 /316 stainless steel spring wire, carbon spring steel. We select suitable material based on your working environment and torque requirement.
3. What is the minimum order quantity?
   We support low MOQ prototype sampling and large volume mass production for your project.
4. Can you guarantee the torque precision of special shape torsion spring?
   We conduct torque testing for each batch, standard torque tolerance ±10%. Tighter tolerance can be customized.
5. Is extra plating available if I need other surface treatment?
   Yes, we can offer passivation and other surface treatments on request, the default finish is natural bright stainless steel.