304 Stainless Steel Precision Cylindrical Compression Coil Spring Mirror Electropolished Flat End Compression Spring
| MOQ: | 500 Pcs |
| Price: | 0.03 USD |
| Packaging: | Standard Export Packaging |
| Lead Time: | 7-20 Days |
| Payment Method: | T/T |
| Supply Capacity: | 2000000 Pcs / Month |
This precision cylindrical compression spring is a core custom machined part supplied by our factory, crafted from premium 304 stainless steel spring wire via full CNC spring coiling process. We implement dual surface treatment: solid solution passivation as the anti-corrosion base layer, followed by electrolytic polishing to deliver flawless mirror bright metal appearance. Both ends are precisely flat ground to ensure vertical fitting during assembly, paired with stress-relief tempering to lock consistent elastic output. As a professional OEM custom manufacturer, we accept drawings and samples to produce small stainless steel pressure springs with flat ends, meeting strict precision assembly requirements for diverse civilian industrial machinery. Every batch undergoes dimensional sorting and elastic force testing before delivery to guarantee stable, reliable performance for long-term industrial use.
| Product Name | SUS304 Cylindrical Compression Spring |
| Material | 304 Stainless Steel Spring Wire |
| Wire Diameter | 2mm |
| Outer Diameter | 8.1mm |
| Total Length | 62.5mm |
| Total Coils | 24 coils |
| End Type | Double Flat Ground Ends |
| Base Surface Treatment | Solid Solution Passivation (Anti-rust layer) |
| Final Surface Finish | Electrolytic Polishing (Mirror Bright Gloss) |
| Machining Equipment | CNC Automatic Spring Coiling Machine |
| Dimensional Tolerance | ±0.02mm precision tolerance |
| Elastic Stability | Stress-relief tempering treatment to eliminate internal forming stress |
- Wire Straightening
- CNC Coil Forming
- Double End Flat Grinding
- Stress Relief Tempering
- Passivation
- Electropolishing
- Sorting & Force Inspection
- Packing
Our custom stainless steel compression spring, precision cylindrical coil spring and mirror polished compression spring are widely applied in civilian precision industries:
- Small automated office equipment
- Household smart home appliances
- Medical miniature precision instruments
- Electronic consumer hardware components
- Automated transmission mini actuators
- Testing & measuring laboratory equipment
- Light industrial assembly fixtures
- Environmental protection small mechanical valves
As a professional custom compression spring manufacturer, we provide full OEM custom service for all types of precision cylindrical coil springs:
- Custom processing per customer technical drawings, physical samples or performance parameter requirements
- Customize wire diameter, outer diameter, free length, coil count, load force and flat end size to match assembly demands
- Custom surface treatment solutions: passivation, mirror electropolishing, matte polishing upon request
- Custom material selection: 304, 316 stainless steel spring wire for different anti-corrosion environments
- Custom batch production: small trial order batches and mass volume OEM orders supported
- Custom packaging solutions for brand export independent store sales
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Dull spring surface & easy rust → Solution: Dual passivation + mirror electropolish treatment, long-lasting anti-rust performance and high-gloss mirror appearance for high-end product assembly.
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Uneven spring ends, unstable assembly fit → Solution: Double-sided flat grinding process, perfect vertical flat contact without assembly wobble.
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Unstable elastic force, fatigue failure quickly → Solution: Post-forming stress relief tempering eliminates internal stress, maintains consistent elasticity under repeated compression.
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Low dimensional accuracy, hard to match precision equipment → Solution: CNC full-automatic coiling machine, ±0.02mm tight tolerance, strict dimensional sorting inspection.
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Hard to find reliable custom OEM manufacturers for small pressure springs → Solution: Professional CNC spring factory with full in-house production line, one-stop custom service from design to finished export products.
- Raw material incoming inspection: 304 stainless steel wire hardness & composition test before production
- In-process real-time monitoring: CNC coiling size real-time calibration to control tolerance
- Post-grinding verticality inspection for flat ends
- Stress relief tempering temperature curve quality tracking
- Finished product full dimensional sorting: length, outer diameter, wire diameter, coil quantity screening
- Elastic load force testing machine inspection for compression performance consistency
- Surface finish visual inspection for mirror polishing uniformity and passivation anti-rust layer integrity
- Random sampling aging compression fatigue test for long service life verification
- Export-grade clean packaging inspection to avoid surface scratch damage during transportation
Can you offer OEM custom service for stainless steel compression spring?
Yes, we are a professional custom manufacturer, we accept OEM orders and can produce precision cylindrical coil springs per your drawings or physical samples.
What is the lead time for custom mirror polished compression spring?
Small trial orders take 7-10 working days, mass OEM bulk orders take 12-18 working days based on your customized parameters.
Is the mirror polished small stainless steel pressure spring resistant to rust?
Yes, we apply solid solution passivation as the base anti-rust layer before electropolishing, the finished flat end compression spring has excellent corrosion resistance.
Can I adjust the wire diameter, length or coil count of the compression spring?
Absolutely, all size parameters can be fully customized according to your equipment assembly and elastic load requirements.
Do you provide product test reports for export independent store sales?
Yes, we can supply dimensional inspection reports, material certification and elastic force test documents for your export business.
