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For new customer

Manufacturing process

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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Manufacturing Process

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
Oil tempered wire	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
Plated wire	SWZD-C	Galvanized wire, for springs that corrosion-resistance required