Changzhou Liyu spring Co., Ltd
| Wire Shape | Round Wire, Square Wire, Rectangular Wire |
| Hook Type | Machine Hook / Extended Hook / Cross Over Hook |
| Heat Treatment | Stress Relieving / Heat Treatment Available |
| Application | Automotive, Medical Equipment, s, Industrial Equipment |
| Tolerance | According to Customer Drawing |
| Corrosion Resistance | High Corrosion Resistance |
| Manufacturing Process | CNC Spring Coiling, Automatic Coiling, Hook Forming |
| Material | Stainless Steel / Carbon Steel / Alloy Steel |
| Payment Terms | L/C,T/T |
| Customization | OEM & ODM Available |
| Inspection | Load Testing, Fatigue Testing, Dimension Inspection |
| Packaging Details | Standard export packaging |
| Product Type | Tension Spring / Extension Spring |
| Model Number | Tension Spring |
| Certification | ISO14001；ISO13485；IATF16949 |
| Place of Origin | China |
| Brand Name | Liyu |
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Product Specification
| Wire Shape | Round Wire, Square Wire, Rectangular Wire | Hook Type | Machine Hook / Extended Hook / Cross Over Hook |
| Heat Treatment | Stress Relieving / Heat Treatment Available | Application | Automotive, Medical Equipment, s, Industrial Equipment |
| Tolerance | According to Customer Drawing | Corrosion Resistance | High Corrosion Resistance |
| Manufacturing Process | CNC Spring Coiling, Automatic Coiling, Hook Forming | Material | Stainless Steel / Carbon Steel / Alloy Steel |
| Payment Terms | L/C,T/T | Customization | OEM & ODM Available |
| Inspection | Load Testing, Fatigue Testing, Dimension Inspection | Packaging Details | Standard export packaging |
| Product Type | Tension Spring / Extension Spring | Model Number | Tension Spring |
| Certification | ISO14001；ISO13485；IATF16949 | Place of Origin | China |
| Brand Name | Liyu | ||
| High Light | Dacromet tension coil spring ，SWPB tension coil spring ，SWPB large tension springs | ||
We provide professional compression spring design services to help customers develop efficient and reliable spring solutions. Our engineers can assist with spring calculations, material selection, load analysis, and performance optimization. Whether you need a replacement spring or a completely new design, we provide technical support throughout the manufacturing process.
| To customize the tension spring, you need to provide the following necessary parameter information: | ||
| Wire diameter d: mm | (Note: the diameter of the spring wire) |
|
| Outer diameter D2: mm | (Note: the diameter of the outer circle of the spring) | |
| Length L0: mm | (Note: the free height of the spring) | |
| Number of circles Na: circle | (Note: the total number of turns of the spring) | |
| For customized compression springs, you also need to provide the following technical requirements: | ||
| turn around: | (Description: left-handed right-handed) | |
| Material requirements: | (Such as: stainless steel wire SUS, carbon steel wire SWC, piano wire SWP, copper wire... etc.) | |
| Surface treatment: | (Description: blackening/galvanizing/nickel plating/chrome plating/baking paint/powder spraying/electrophoresis/shot peening/dacromet/electrolytic polishing...etc.) | |
| Pull hook form: | (Description: round hook/semi-circle hook/U hook/middle ear/change hook... etc.) | |
| Strength requirements: | (Note: Elastic performance, other technical requirements, etc.) | |
| Characteristic | Parameter |
|---|---|
| Straight closing |
| Short hook closing | |
| Hinge closing | |
| Straight twist closing | |
| Curved closing | |
| Double twist closing | |
| Blackening |
| Shot Peening | |
| Apply anti-rust oil | |
| Zinc plating | |
| Polishing | |
| Electrolytic polishing | |
| Nickel plating | |
| Dacromet | |
| Teflon spray | |
| Carbon spring steel wire SWC |
| Piano wire SWPB | |
| Stainless steel wire SUS301, SUS302, SUS304, SUS316, SUS631 | |
| 65Mn | |
| 82B | |
| 55CrSi (SWOSC-V) | |
| Nickel-plated wire, galvanized wire | |
| Copper wire, phosphor copper wire, beryllium copper wire | |
| Square wire, flat wire, semicircular wire | |
| Alloy material wire | |
| Other special specifications steel wire | |
| Wire diameter specifications | 0.1~6mm |
Company Details
Business Type:
Manufacturer
Year Established:
1994
Total Annual:
5000000-10000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Changzhou Liyu spring Co., Ltd., founded in 1994, is located in Jincheng Town Industrial Park, Jintan District, Changzhou City, with convenient transportation.The company specializes in producing compression spring, tension spring, torsion spring, scroll spring, spring contact finger, spring clamp... Changzhou Liyu spring Co., Ltd., founded in 1994, is located in Jincheng Town Industrial Park, Jintan District, Changzhou City, with convenient transportation.The company specializes in producing compression spring, tension spring, torsion spring, scroll spring, spring contact finger, spring clamp...
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