Product Description
📌 Read Before Buying
A. Due to internet and computer display solutions, actual products may differ slightly from the pictures. Please contact us for further assistance.
B. All extension springs, compression springs, torsion springs, and wire forms can be manufactured to customized demands.
C. We appreciate Drawing-Guide Production. Please provide drawings whenever possible for inquiries.
D. We welcome all inquiries and are ready to assist you anytime.
📐 Working Drawing of Torsion Spring
🌀 Different Shapes of Helical Torsion Springs
There are generally two common types of torsion springs: single and double coil torsion springs. Double torsion springs consist of two single torsion springs connected, working together to double the torque of a single spring.
✨ Available Coating Methods
All coating materials comply with RoHS standards in accordance with environmental policies. Below is a reference table for various coating costs and standards:
| Coating Method |
Cost |
RoHS Compliant |
Remark |
| Unplated | None | Yes | - |
| Anti Rust Oil | Lowest | Yes | - |
| Black Oxide/Oxide | Lower | Yes | - |
| Normal Zinc coating | Normal | No | - |
| Trivalent Zinc coating | High | Yes | 8~10μ thickness, 48h salt spray |
| Nickel Plated | Normal | Yes | - |
| Electrophoresis | Higher | Yes | - |
| Stainless Steel Washing | Normal | Yes | - |
| Stainless Steel Electro-polish | Highest | Yes | Superior finish |
Frequently Asked Questions
Which kind of materials are available for production?
We utilize a large range of high-grade materials including Carbon Steel, Stainless Steel, Music Wire, and more. All materials comply with RoHS standards, with wire diameters ranging from 0.001 to 0.075 inches.
Do you support small quantity orders?
Yes, we manufacture both large and small quantity runs based on your specific demands. We work with you to find the most cost-effective production solution.
Can you assist with the initial design and engineering?
Our engineers provide design assistance to optimize performance and lower production costs. We can provide layouts in CAD, 2D, and 3D formats along with prototype development.
What is the typical lead time for custom parts?
Lead times vary; standard springs can often be delivered within 25 days. Complex shapes or specialized components typically require 30 to 40 days for production.
Is there a charge for custom samples?
Sample charges are usually treated as a subscription toward a formal order and can be refunded upon order placement. However, if a custom mold is required, a tooling fee will be charged.
What payment terms do you accept?
We accept various payment terms including T/T, L/C at sight, DP, and Western Union to facilitate a smooth transaction.