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Manufactured to Order (Special Order)

Here is the introduction of variety of coil springs, wire formed springs, and other special springs.
There are various types of springs by their shapes. Our extensive production facilities enable us to produce from micro precision springs to hot formed springs, and from trial to mass production. Customers who need a small amount of springs, we recommend our standard stock springs. In case we can't cope with your requests, we could introduce you to other companies that satisfy your requests.

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From Consultation to Delivery

We guide our customers to order manufactured-to-order springs for the first time.
Please contact us anytime 24 hours via emails. Our sales department will respond within 24 hours for confirmation, and we strive to respond quickly to submit estimates in principle within 48 hours after confirming the specifications.

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Messages from Sales Department

We always listen closely to our clients' inquires and requests to solve problems or to develop new clients. Now we receive orders from various industries nation-wide. Not only we consult via emails, but we also visit our clients if necessary.

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Frequently Asked Questions

Here is a sum-up of frequently asked questions upon estimates and orders. There are answers about drawing, designing, delivery term, quantity, tooling costs, quality management and purchase of standard products. If you have any other questions, please feel free to contact our sales department.

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Techniques and Technical Documents

We summarized some frequently asked elementary questions about spring materials and common springs.
Technical data displays basic formulas and symbols used for spring design.

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Until a spring is made

Three important points in order to make a better spring;1. To design properly, 2. To choose the best materials, 3. To produce correctly and accurately.

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Main spring materials and Application

Types Symbols Purposes and Characteristics
Piano wire SWP-A,B,V Springs that mainly receive dynamic load, valve springs
Hard drawn steel wire SW-B,C Springs that mainly receive static load
Spring steel SUP-6,9 For hot forming, helical large springs, flat springs
Oil tempered wire SWOSC-V,B Valve springs for engines, general machine springs
SWOSM-B General machine springs standard size 4-14mm
Stain-less steel wire SUS304-WPB Wire springs that have excellent corrosion and heat resistance
Stain-less steel strips SUS304-CSP Flat springs, springs
Steel strips for spring SK5-CS Flat springs, springs
Bainitic steel S60-CSP Flat springs (Hardness Hv360-440)
Phosphor-bronze wire C5102W Corrosion, tiredness-resistant, easy for processing, springs for precision machinery
Phosphor-bronze sheets/strips C5210P,R Flat springs for precision machinery
Inconel NCF750 Heat and corrosion-resistant nonmagnetic springs
Plated wire SWIC-F Nickel plated wire, corrosion-resistant and good in conductivity
SWZD-C Galvanized wire, for springs that corrosion-resistance required

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Products Information