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Shenzhen TingFeng Hardware Products Co.,Ltd

  • China,Shenzhen ,Guangdong
  • Verified Supplier
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China Non Standard Tension Spring With Custom Hook Loop Ends High Precision Springs
China Non Standard Tension Spring With Custom Hook Loop Ends High Precision Springs

  1. China Non Standard Tension Spring With Custom Hook Loop Ends High Precision Springs
  2. China Non Standard Tension Spring With Custom Hook Loop Ends High Precision Springs
  3. China Non Standard Tension Spring With Custom Hook Loop Ends High Precision Springs

Non Standard Tension Spring With Custom Hook Loop Ends High Precision Springs

  1. MOQ: 1
  2. Price: 0.01-0.50USD
  3. Get Latest Price
Payment Terms ,T/T
Supply Ability 10000000pieces/per month
Delivery Time 3days/Start
Packaging Details Carton packaging 18*15*12cm (packaging can be customized according to customer product requirements)
Spring Variety Custom Extension Spring
Material Choice Music Wire (High Strength) / SUS304 (General) / SUS316 (Corrosion Resistant) / Zinc Plated Steel (Economical)
Common Wire Diameters 0.3mm, 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm
Loop Type Small Round Loop / Large Round Loop / Rectangular Loop / Cross Center Loop
Performance Focus High Initial Tension / Long Extension Travel / Long Fatigue Life / Corrosion Resistance
Surface Coating Color Zinc / White Zinc / Electroless Nickel / Epoxy Coating
Application Field Automotive Industry / Outdoor Equipment / Precision Instruments / Furniture
Quality Certification ISO 9001 / IATF 16949 / ROHS Compliance Statement
Brand Name TF
Model Number TF-003
Certification lSO9001
Place of Origin Shenzhen, China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms ,T/T Supply Ability 10000000pieces/per month
Delivery Time 3days/Start Packaging Details Carton packaging 18*15*12cm (packaging can be customized according to customer product requirements)
Spring Variety Custom Extension Spring Material Choice Music Wire (High Strength) / SUS304 (General) / SUS316 (Corrosion Resistant) / Zinc Plated Steel (Economical)
Common Wire Diameters 0.3mm, 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm Loop Type Small Round Loop / Large Round Loop / Rectangular Loop / Cross Center Loop
Performance Focus High Initial Tension / Long Extension Travel / Long Fatigue Life / Corrosion Resistance Surface Coating Color Zinc / White Zinc / Electroless Nickel / Epoxy Coating
Application Field Automotive Industry / Outdoor Equipment / Precision Instruments / Furniture Quality Certification ISO 9001 / IATF 16949 / ROHS Compliance Statement
Brand Name TF Model Number TF-003
Certification lSO9001 Place of Origin Shenzhen, China
High Light Non Standard Tension SpringCustom Hook Tension SpringLoop Ends High Precision Springs

 

Non-Standard Extension Spring with Custom Hook/Loop Ends for Optimized Connection in Space & Load-Specific Applications

 

1.Tension Spring Quick Detail

As a custom extension spring expert, Tingfeng Hardware is committed to providing end-to-end solutions from concept to volume production. We specialize in manufacturing precision extension springs within the wire diameter range of Φ0.1-12mm, with particular expertise in the forming and strengthening of various loop types. We combine 15 years of process experience, advanced WAFIOS equipment, and a stringent IATF quality management system to ensure rapid response (48-hour samples) and stable supply (500K pcs/day capacity). Our goal is to enhance your product's market competitiveness through reliable spring performance


2.Tension Spring  Product Description

The core of extension spring design lies in balancing load, travel, lifespan, and installation method. We deeply understand the importance of loops as stress concentration points and primary failure modes. Therefore, our engineering service focuses on optimizing the end design for you—whether selecting the most suitable loop type, determining the optimal bend radius, or suggesting strengthening processes (e.g., butt welding, crimping). We use high-quality wire and controlled coiling tension, combined with precise heat treatment, to ensure the spring maintains stable mechanical properties even after long-term extension cycles, thereby extending the service life of your entire system.


3.Tension Spring  Product Features & Advantage

Feature

Advantage to You

 

Optimized Loop Fatigue Strength

Through specialized research on loop forming processes and heat treatment parameters, significantly improves fatigue resistance at the loop root, reducing the risk of hook breakage.

Flexible Customization & Rapid Iteration

Supports “1-piece MOQ” prototyping, combined with a 200+ mold library, enabling快速响应 to your design changes and sample requests.

Stringent Incoming & Process Control

Implements multiple inspections from wire diameter and strength to coil pitch and hook angle during coiling, ensuring quality at the source.

Professional Application Engineering Consulting

Offers free advice on spring installation space, guidance design, and avoiding interference between loops and adjacent parts, refining your design.

 

4. Tension Spring  Product Specification

Specification Parameter

Capability Range

Description & Notes

Wire Diameter (d)

0.10 - 5.00 mm (Focus)

Determines basic load capacity

Inside Diameter (ID)

1.0 - 70 mm

Reference for mounting rod diameter

Coils (Total/Active)

Custom

Affects rate and free length

Free Length (L0)

5 - 1000 mm

Measured inside loops

Initial Tension (F0)

Customizable, wide range

Force to start extending the spring

Extension Rate (R)

0.02 - 200 N/mm

Ratio of load to elongation

Max. Safe Extended Length

≤ (Calculated per material allowable stress)

Engineering design support provided

Loop Inside Width/Gap

Custom per Design

Critical installation dimension

 

5.Tension Spring  Product Application

Tension Springs Creating Value Through Tension:

Safety and Protection Systems: Used in safety gate reset mechanisms, emergency braking cables, and fire door closers, requiring absolutely reliable operation and durability.

Sports and Leisure Products: Such as bicycle brake cable springs, fishing rod holder springs, and tent rope adjusters, requiring performance maintenance in outdoor environments.

Automation and Robotics: Applied to robotic arm cable management, conveyor belt tensioning mechanisms, and vending machine pushers, adaptable to high-frequency, precise positioning industrial environments.

Everyday Convenience Facilities: Garage door balancing systems, pull-down locker door assist springs, and pet leash retraction mechanisms, enhancing ease of use and comfort.

 

6. Frequently Asked Questions (FAQ)
Q: Can you handle complex custom designs and provide design optimization suggestions?
A: Absolutely. This is our core expertise. We provide free DFM analysis within 3-5 days, often helping clients achieve 15-30% cost reduction through design for manufacturability.
Q: How do you ensure quality consistency and handle defect issues?
A: We implement a rigorous 4-stage QC system with 100% full inspection. Our track record shows 99.99% qualification rate.
Q: What are your lead times and how do you handle urgent orders?
A: Standard lead times: 3-7 days for prototypes, 7-15 days for mass production. We offer VIP prioritization cutting lead times by up to 30%.
Q: Will I get timely responses and professional support throughout the project?
A: Yes. You get a 1v1 exclusive consultant with 1-hour initial response commitment and 24-hour technical support.
Q: Can you provide material certifications and environmental compliance reports?
A: Yes. We provide material certifications and environmental test reports (RoHS, REACH compliant) upon request.
Q: How do you protect my designs and intellectual property?
A: We start with mutual NDA and implement strict mold ownership protection and confidential data security measures.
Q: What are your payment terms and MOQ requirements?
A: We offer flexible payment terms (T/T, L/C at sight) and MOQ from 1 piece for prototyping.

 

 

 

 

 

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter,Seller

  • Year Established:

    the year20

  • Total Annual:

    20000000-30000000

  • Employee Number:

    60~70

  • Ecer Certification:

    Verified Supplier

 Company Profile Tingfeng Hardware — Your Partner for High-Precision Non-Standard Components Since 2010, with 15 years of dedication, we focus on one mission: solving your “un-makeable, small-batch, urgent, and difficult” non-standard part manufacturing challenges. Core Streng...  Company Profile Tingfeng Hardware — Your Partner for High-Precision Non-Standard Components Since 2010, with 15 years of dedication, we focus on one mission: solving your “un-makeable, small-batch, urgent, and difficult” non-standard part manufacturing challenges. Core Streng...

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Get in touch with us

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  • Shenzhen TingFeng Hardware Products Co.,Ltd
  • 1623, Blk A, Rongchuangzhihui Building, Minzhi Longhua, Shenzhen,Guangdong
  • https://www.tingfengprecision.com/

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