China factories

Chat Now Send Email
China factory - Shenzhen TingFeng Hardware Products Co.,Ltd

Shenzhen TingFeng Hardware Products Co.,Ltd

  • China,Shenzhen ,Guangdong
  • Verified Supplier
  1. Home
  2. Products
  3. About Us
  4. Contact Us

Leave a Message

we will call you back quickly!

Submit Requirement
China Closed Ground End Compression Spring Flatness 0.1mm for Precision Assembly
China Closed Ground End Compression Spring Flatness 0.1mm for Precision Assembly

  1. China Closed Ground End Compression Spring Flatness 0.1mm for Precision Assembly
  2. China Closed Ground End Compression Spring Flatness 0.1mm for Precision Assembly
  3. China Closed Ground End Compression Spring Flatness 0.1mm for Precision Assembly

Closed Ground End Compression Spring Flatness 0.1mm for Precision Assembly

  1. MOQ: 1
  2. Price: 0.2-0.52/pcs
  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)
End Type Both ends closed & ground
End Flatness ≤0.1mm (std); ≤0.05mm (precision)
Perpendicularity ≤0.5°
Wire Diameter 0.3mm – 3.0mm
Outer Diameter 3mm – 30mm
Material Music wire / SUS304 / Chrome silicon
Inspection Optical flatness gauge + profile projector
Application Valves, plungers, mechanisms requiring stable seating
Brand Name TF
Model Number TF-0016
Certification ISO9001
Place of Origin Shenzhen, China

View Detail Information

Inquiry by Email Get Latest Price
Chat online Now Ask for best deal
  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)
End Type Both ends closed & ground End Flatness ≤0.1mm (std); ≤0.05mm (precision)
Perpendicularity ≤0.5° Wire Diameter 0.3mm – 3.0mm
Outer Diameter 3mm – 30mm Material Music wire / SUS304 / Chrome silicon
Inspection Optical flatness gauge + profile projector Application Valves, plungers, mechanisms requiring stable seating
Brand Name TF Model Number TF-0016
Certification ISO9001 Place of Origin Shenzhen, China
High Light Closed ground compression springPrecision assembly compression springFlatness 0.1mm compression spring
Closed Ground End Compression Spring Flatness 0.1mm for Precision Assembly
Closed ground end compression springs with flatness ≤0.1mm and perpendicularity ≤0.5° ensure stable, side-load-free force output for precision assembly applications.
Compression Spring Quick Detail
Essential for valve spools, plungers, and applications requiring vertical spring seating. Our compression springs feature ground flat ends with flatness ≤0.1mm and perpendicularity ≤0.5° to prevent tilting and mating surface wear during compression. Custom wire diameter, OD, and spring rate available with 48-hour sampling and small batch orders welcome.
Compression Spring Product Description
Many mechanical failures originate from spring end misalignment. When spring ends are not parallel, compression generates lateral forces that cause guide wear, seal eccentric wear, or spring buckling. The closed & ground process—closing the last two coils tightly and grinding them perpendicular to the axis—fundamentally solves this issue.
Tingfeng Hardware uses double-face simultaneous grinding to process both ends at once, ensuring parallelism and perpendicularity. We utilize optical flatness gauges to achieve flatness within 0.05mm. For special requirements requiring extremely high flatness for minimal clearances, we offer precision grinding services. Whether for solenoid valve armature springs or force-transmission springs in precision regulators, our ground-end springs provide stable, side-load-free force output. With 15 years of experience and IATF16949 certification, quality is assured.
Closed ground end compression spring manufacturing process
Compression Spring Features & Advantages
Feature Advantage to You
Double-face simultaneous grinding Ensures parallel ends; no side load during compression, extending guide life
Flatness ≤0.1mm (standard) Spring seats stably; ideal for precision mating surfaces like valve seats and stops
Perpendicularity ≤0.5° Prevents spring-to-bore friction, reducing noise and vibration
Custom Rate & Size Designed exactly to your load and space requirements—no compromise with standard stock
Small Batch & Rapid Sample 48-hour sampling, orders from 100 pieces, no tooling fee
Precision ground end compression spring close-up
Compression Spring Specifications
Specification Item Detail / Capability Notes / Description
Wire Diameter 0.3mm - 3.0mm Very fine wires prone to grinding deformation
Outer Diameter 3mm - 30mm Fixture compatible
Free Length 5mm - 120mm Minimum 2 closed coils required on each end
Flatness ≤0.1mm (standard) / ≤0.05mm (precision) Measured with optical flat
Perpendicularity ≤0.5° Relative to spring axis
Material Music wire, SUS304, SUS316, Chrome silicon All grindable materials
Surface Finish Natural / Zinc / Nickel plated Applied after grinding process
Sample Lead Time 3-5 days (with grinding) Grinding adds 1-2 days to process
Compression spring applications in industrial components
Compression Spring Applications
  • Solenoid Valves & Pneumatic Components: Return springs for valve spools; ensure uniform seal contact, preventing leakage
  • Precision Regulators & Pressure Reducing Valves: Springs used as force reference in adjustment mechanisms requiring accurate, non-side-load force
  • Test Probes & Connectors: Spring probes for IC test sockets and battery connectors requiring smooth compression
Frequently Asked Questions
Can you handle complex custom designs and provide design optimization suggestions?
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.
How do you ensure quality consistency and handle defect issues?
We implement a rigorous 4-stage QC system with 100% full inspection. Our track record shows 99.99% qualification rate.
What are your lead times and how do you handle urgent orders?
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%.
Will I get timely responses and professional support throughout the project?
Yes. You get a 1v1 exclusive consultant with 1-hour initial response commitment and 24-hour technical support.
Can you provide material certifications and environmental compliance reports?
Yes. We provide material certifications and environmental test reports (RoHS, REACH compliant) upon request.
How do you protect my designs and intellectual property?
We start with mutual NDA and implement strict mold ownership protection and confidential data security measures.
What are your payment terms and MOQ requirements?
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...

+ Read More

Get in touch with us

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

Leave a Message, we will call you back quickly!

Email

Check your email

Phone Number

Check your phone number

Requirement Details

Your message must be between 20-3,000 characters!

Submit Requirement