Chat Now |
Home ProductsTension Spring

Precision Polishing SWC Helical Steel Extension Spring OEM

All Products

Compression Spring

(19)

Tension Spring

(28)

Torsion Spring

(7)

Wave Springs

(10)

Retaining Ring Circlip

(11)

Wire Form Springs

(21)

Square Springs

(9)

Flat Wire Springs

(8)

Conical Springs

(14)

Quick Connector Clips

(4)

Titanium Surgical Staples

(6)

Lancet Springs

(7)

EMI Springs

(6)

Sheath Spring

(6)

Sensor Contact Springs

(3)
Certification
China Changzhou Liyu spring Co., Ltd certification
China Changzhou Liyu spring Co., Ltd certification
I'm Online Chat Now

Precision Polishing SWC Helical Steel Extension Spring OEM

Precision Polishing SWC Helical Steel Extension Spring OEM
Precision Polishing SWC Helical Steel Extension Spring OEM Precision Polishing SWC Helical Steel Extension Spring OEM

Large Image :  Precision Polishing SWC Helical Steel Extension Spring OEM

Product Details:
Place of Origin: China
Brand Name: Liyu
Certification: ISO14001；ISO13485；IATF16949
Model Number: Tension Spring
Payment & Shipping Terms:
Minimum Order Quantity: 1 set
Price: Negotiation
Packaging Details: Standard export packaging
Payment Terms: L/C,T/T
Contact Now Chat Now

Precision Polishing SWC Helical Steel Extension Spring OEM

Description
Product Type: Tension Spring / Extension Spring Certification: ISO13485；ISO14001；IATF16949
Drawing Format: CAD, PDF, STEP Fatigue Life: Customized Cycles
Corrosion Resistance: High Corrosion Resistance Tolerance: According To Customer Drawing
Heat Treatment: Stress Relieving / Heat Treatment Available Wire Shape: Round Wire, Square Wire, Rectangular Wire
Manufacturing Process: CNC Spring Coiling, Automatic Coiling, Hook Forming Inspection: Load Testing, Fatigue Testing, Dimension Inspection
Hook Type: Machine Hook / Extended Hook / Cross Over Hook Application: Automotive, Medical Equipment, Electronics, Industrial Equipment
Highlight:

Polishing steel extension spring

,

SWC steel extension spring

,

Polishing helical extension springs

tension spring·CUSTOMIZATION

Choosing a reliable compression spring manufacturing partner ensures stable product quality and supply capability. We provide professional engineering support, strict quality inspection, and efficient production management. Our mission is to deliver dependable spring products and build long-term cooperation with customers worldwide.
Precision Polishing SWC Helical Steel Extension Spring OEM

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)

Precision Polishing SWC Helical Steel Extension Spring OEM
 
 
 
 
 
Precision Polishing SWC Helical Steel Extension Spring OEM  

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.)

Precision Polishing SWC Helical Steel Extension Spring OEM

CharacteristicParameter

 
 
 
        Two ends structure

Straight closing
Short hook closing
Hinge closing
Straight twist closing
Curved closing
Double twist closing

 
 
 
 
 
       Surface treatment

Blackening
Shot Peening
Apply anti-rust oil
Zinc plating
Polishing
Electrolytic polishing
Nickel plating
Dacromet
Teflon spray

 
 
 
 
 
 
 
              Materials

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 specifications0.1~6mm

Precision Polishing SWC Helical Steel Extension Spring OEMPrecision Polishing SWC Helical Steel Extension Spring OEM

Tag:

coil extension spring,

stainless steel extension springs,

double hook tension spring

Contact Details
Changzhou Liyu spring Co., Ltd

Contact Person: Mr. Zhiyuan Yu

Tel: +8613815003598

Send your inquiry directly to us (0 / 3000)

About

Compression Spring

304SS 302SS Custom Compression Springs Assortment ISO13485 Certificated

Custom Metal Heavy Duty Compression Springs 6 Inch ISO14001 Certificated

Bulk SUS316 Stainless Compression Springs For Automotive Electronics

Tension Spring

SWC SWP Wire Tension Helical Extension Springs Blackening Galvanizing

Small Helical Compression And Tension Springs 3 Inch Anti Rust OEM

Electrophoresis Light Tension Springs Stainless Steel High Strength In Bulk

LEAVE MESSAGE

Privacy Policy | China Good Quality Compression Spring Supplier. © 2026 Changzhou Liyu spring Co., Ltd. All Rights Reserved.