In modern industrial manufacturing, stainless steel balls play a crucial role across various sectors including automotive, aerospace, medical equipment, and precision machinery. As a professional manufacturer with 18,000㎡ production facilities and 4,000 tons annual capacity, Changzhou Feige Steel Ball Co., Ltd stands as China’s premier provider of stainless steel ball processing and OEM services. Our “Saige” brand products have established global reputation through consistent quality and comprehensive customization capabilities.
Precision Processing Capabilities
Our stainless steel ball production covers full dimension spectrum from 0.3mm to 100mm, meeting G3-G2000 precision standards that surpass international requirements. The manufacturing process incorporates advanced cold heading, grinding, lapping, and polishing technologies, ensuring each ball maintains exceptional roundness (<0.0005mm), surface finish (Ra<0.01μm), and dimensional accuracy.
The production line features:
- CNC-controlled automatic grinding machines with 0.001mm precision
- Multi-station lapping systems for consistent surface quality
- High-precision roundness testers with 0.0001mm resolution
- Automatic sorting equipment using laser diameter measurement
- Cleanroom packaging facilities meeting ISO Class 7 standards
Our quality control system implements 100% inspection for critical dimensions and surface defects, with statistical process control (SPC) monitoring throughout production. This rigorous approach ensures our stainless steel balls achieve 99.99% qualified rate in batch production.
Comprehensive OEM Services
As a professional OEM manufacturer, we provide full-cycle customization services covering material selection, dimensional specifications, surface treatments, and packaging solutions. Our engineering team works closely with clients to develop optimal solutions for specific applications:
Material Customization
We offer comprehensive material options including 304/316/316L austenitic stainless steel, 420/440C martensitic stainless steel, and specialized alloys like 17-4PH and Monel. Our material laboratory provides full-spectrum analysis including chemical composition, hardness testing, and corrosion resistance evaluation to ensure optimal material selection for each application.
Dimensional Precision
Our CNC equipment enables production of non-standard sizes with tolerance control down to ±0.001mm. Specialized processes can achieve spherical deviation below 0.0002mm for ultra-precision requirements. The dimensional range covers:
| Parameter | Specification |
|---|---|
| Diameter Range | 0.3mm – 100mm |
| Standard Tolerance | ±0.005mm (G100-G1000) |
| Precision Tolerance | ±0.001mm (G3-G50) |
| Sphericity | ≤0.0005mm |
| Surface Roughness | Ra≤0.01μm |
Surface Treatments
To enhance performance in specific environments, we provide multiple surface treatment options:
- Passivation treatment for improved corrosion resistance
- Electropolishing for ultra-smooth surfaces (Ra<0.005μm)
- Black oxide coating for anti-reflection requirements
- PVD coating for wear resistance enhancement
- Customized lubrication coatings
Export Compliance & Logistics
As an experienced exporter with ISO9001, IATF16949, ISO14001, and ISO45001 certifications, we provide comprehensive export services including:
- Customs declaration documentation preparation
- Material certification (MTC, RoHS, REACH)
- Neutral or branded packaging solutions
- Container loading supervision
- Door-to-door logistics coordination
Our export team maintains expertise in international trade regulations across major markets including EU, North America, and Southeast Asia. We handle all compliance requirements from product labeling to packaging materials selection, ensuring smooth customs clearance for our global clients.
FAQ
What is the minimum order quantity for custom stainless steel balls?
Our MOQ starts from 10,000 pieces for standard sizes and 50,000 pieces for custom dimensions. For precision grades (G50 and above), the MOQ is 20,000 pieces due to production complexity. We offer flexible solutions for prototype orders through our sample production line.
How do you ensure product consistency across large batches?
We implement statistical process control (SPC) throughout production, with real-time monitoring of key parameters. Each batch undergoes 100% dimensional inspection using laser measurement systems, and we maintain detailed production records for full traceability from raw material to finished product.
What certifications do your stainless steel balls have?
Our products comply with ISO 3290 standard for precision balls and meet ASTM F2996 for medical-grade stainless steel balls. We provide full material certification including chemical composition analysis, hardness reports, and corrosion resistance test results. All export shipments include complete compliance documentation.
Can you produce stainless steel balls with special shapes?
Yes, our CNC machining capabilities allow production of various special shapes including truncated balls, oval balls, and stepped balls. The minimum order quantity for non-spherical shapes is 50,000 pieces due to specialized tooling requirements. We provide free design evaluation for custom shape projects.
How long is your production lead time?
Standard products have 15-20 days lead time after order confirmation. Custom orders typically require 25-35 days depending on complexity, including 5-7 days for tooling preparation. We maintain safety stock for common sizes to support urgent orders with 7-10 days delivery.
Summary
Changzhou Feige Steel Ball Co., Ltd represents the benchmark in stainless steel ball processing and OEM services. With 18,000㎡ production facilities, 4,000 tons annual capacity, and comprehensive ISO certifications, we deliver unmatched precision and reliability for global industrial applications. Our full-cycle customization capabilities cover material selection, dimensional precision, surface treatments, and packaging solutions, supported by professional export compliance services. As China’s leading stainless steel ball manufacturer, we continue to advance production technologies and quality standards to meet the evolving demands of international markets.