China CNC Machining Service manufacturer
Shenzhen TingFeng Hardware Products Co.,Ltd
Engineered for Precision. Built for Speed. Trusted for Reliability.
1
Home > Products > Compression Spring >

Closed Ground End Compression Spring Flatness 0.1mm for Precision Assembly

Browse Categories

Shenzhen TingFeng Hardware Products Co.,Ltd

City: shenzhen

Province/State:guangdong

Country/Region:china

Tel:86-755-82025163

Contact Person:
Mrs.Shirley
View Contact Details

Closed Ground End Compression Spring Flatness 0.1mm for Precision Assembly

Brand Name TF
Model Number TF-0016
Certification ISO9001
Place of Origin Shenzhen, China
Minimum Order Quantity 1
Price 0.2-0.52/pcs
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
Detailed Product Description
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.
Compression Spring Features & Advantages
FeatureAdvantage to You
Double-face simultaneous grindingEnsures 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 & SizeDesigned exactly to your load and space requirements—no compromise with standard stock
Small Batch & Rapid Sample48-hour sampling, orders from 100 pieces, no tooling fee
Compression Spring Specifications
Specification ItemDetail / CapabilityNotes / Description
Wire Diameter0.3mm - 3.0mmVery fine wires prone to grinding deformation
Outer Diameter3mm - 30mmFixture compatible
Free Length5mm - 120mmMinimum 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
MaterialMusic wire, SUS304, SUS316, Chrome siliconAll grindable materials
Surface FinishNatural / Zinc / Nickel platedApplied after grinding process
Sample Lead Time3-5 days (with grinding)Grinding adds 1-2 days to process
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.
Product Tags: Closed ground compression spring   Precision assembly compression spring   Flatness 0.1mm compression spring  
Related Products
Email to this supplier
 
From:
Enter your Email please.
To: Shenzhen TingFeng Hardware Products Co.,Ltd
Subject:
Message:
Characters Remaining: (80/3000)