Gold Member Since 2016
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XIAMEN XINLI SPRING MANUFACTURING CO., LTD.

Power Spring, Spiral Spring, SRL Spring manufacturer / supplier in China, offering Close Tolerances Precision Power Springs, Coil Wire Forming of Stainless Steel, All Kinds of Customized Metal Springs and so on.

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Close Tolerances Precision Power Springs

FOB Price: US $0.01 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $0.01/ Piece
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Port: Xiamen, China
Production Capacity: 1, 000, 000 PCS / Year
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: Close tolerances Power Springs
  • Material: Stainless Steel
  • Extension Spring Classification: Semicircle Hook Tension Spring
  • Load Type: Compression
  • Diameter Coil Spring: Small coil spring
  • Shape: Coil
  • Trademark: XINLI SPRING
  • Specification: as required
  • HS Code: 732090
  • Function: Drive
  • Extension Spring Material: Stainless steel
  • Usage: Industrial, Auto, Furniture, Motorcycle, Home Appliance
  • Compression Spring Shape: Cylindrical
  • Production Process: Cold Roll
  • All Kinds of Metal Springs: Customization
  • Transport Package: Cartons or as Required
  • Origin: China
Product Description
A power spring is a spring for which the force it exerts over its range of motion is a constant. That is, it does not obey Hooke's law. Generally constant-force springs are constructed as a rolled ribbon of spring steel such that the spring is relaxed when it is fully rolled up. As it is unrolled, the restoring force comes primarily from the portion of the ribbon near the roll. Because the geometry of that region remains nearly constant as the spring unrolls, the resulting force is nearly constant. 


We specialize in manufacturing various kinds of metal springs. Equipped with latest model of CNC spring machines, fully automatic continuous tempering furnace and series of advanced spring testing equipments, we are able to design and manufacture metal springs with strict requirements and at reasonable prices.

Our products are widely used in industries cincluding automotive, space & aero, power & energy, motorcycle, home appliances, fitness equipment, bath & kitchen, digital machinery, DVD, instruments and relative industries.

Our main products as follows:

Compression springs of different types and forms; cylindrical, conical, biconical, oval compression springs with or without grinded and/or closed ends. Static or dynamic applications. Wire diameters from 0.04 to 80.00mm.

Wire-forms: round, flat, square or rectangular. Production: small, medium and large series. Wire diameters from 0.1 to 12.00mm. 

Extension springs with or without contiguous coils, standard or custom shaped loops. Static or dynamic applications. Wire diameters from 0.10 to 12.00mm. Wire-forms: round, square or rectangular. Production: small, medium and large series.

Torsion springs with a cylindrical, conical or bi-conical body, with simple or complex spring legs adapted to every application. Right- hand or left- hand wounded depending on the load direction. Wire diameters from 0.10 to 10.00mm. Production: small, medium and large series.

Double-bodied springs in symmetrical or asymmetrical shapes. Right- hand or left- hand wounded depending on the load direction. Wire diameters from 0.10 to 8.00mm. Production: small, medium and large series.

Flat Springs made of strip steel of all shapes, stamped, cut and drilled. Thickness of 0.20 to 4.00 mm.
Drawing and realization of tooling. As for the volume, we can produce any quantity you need, whether small, medium or large series.


Deep drawing and stamping of stamped sheet of all shapes, stamped, cut and drilled. Thickness of 0.20 to 6.00 mm. Drawing and realization of tooling. As for the volume, we can produce any quantity you need, whether small, medium or large series.
Materials used: stainless steel, galvanized, ferrous and non-ferrous metals, work hardened steel, oil tempered steel, aluminium, nickel, titanium, tungsten and etc.

Surface treatment on demand: galvanizing, dacromet, geomet, delta-tone, nickel plating, phosphating, tinning, PTFE, epoxy paints, oiling, roto-finish, shot peening ...
Life: our production with proper material and production cotrol can achieve long duration up to 30 millions (for valve springs, while normal life cycles 5 millions),  5 millions (for normal springs, if required), or 1 million (for spiral springs, while normal life 20k cycles).

To further assist you in the development and finalizing of your projects, we can handle prototype requests at very short notice. 
 
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Mr. Charles Chen
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