In the global industrial supply chain, precision steel balls serve as critical components in countless applications – from automotive bearings to aerospace instrumentation. 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 supplier of full-category precision steel balls, meeting the exacting standards of international markets through our “Saige” brand products.

Comprehensive Product Range Covering All Industrial Needs
Our core product portfolio includes two main categories: bearing steel balls and stainless steel balls, both available in the industry’s most complete specification range. With diameter options from 0.3mm to 100mm and precision grades spanning G3 to G2000, we address requirements across three critical dimensions:
- Size spectrum: From micro components for medical devices to large balls for heavy machinery
- Precision hierarchy: Standard commercial grades to ultra-precision G3 specifications
- Material variety: Chrome steel, stainless steel, carbon steel, and specialty alloys
This comprehensive coverage enables us to serve diverse industries including automotive, aerospace, precision instrumentation, construction machinery, and consumer electronics. Our engineering team maintains strict control over material composition, heat treatment processes, and surface finishing to ensure consistent performance across all product lines.
Custom Steel Ball Production Capabilities
Understanding that standard products cannot meet all industrial requirements, we’ve established China’s most advanced custom steel ball production system. Our non-standard manufacturing capabilities include:
| Customization Parameter | Available Options |
|---|---|
| Material Composition | Custom alloy ratios, special corrosion-resistant materials, magnetic/non-magnetic options |
| Surface Treatments | Polishing, grinding, passivation, black oxide coating, custom color coating |
| Tolerance Control | ±0.001mm to ±0.01mm precision, custom CPK requirements |
| Geometric Shapes | Standard spheres, truncated spheres, elliptical shapes, custom profiles |
Our custom production workflow begins with detailed technical reviews where engineers collaborate with clients to optimize designs for manufacturability and cost efficiency. Using advanced CNC grinding equipment and precision measurement systems, we achieve consistent quality across batch sizes ranging from 100 pieces to millions of units.

International Certification System Ensuring Quality
As a supplier to global OEMs and tier-1 manufacturers, we maintain the industry’s most comprehensive quality management system, certified to four international standards:
- ISO 9001: General quality management system
- IATF 16949: Automotive industry quality requirements
- ISO 14001: Environmental management system
- ISO 45001: Occupational health and safety management
Our quality control procedures cover every production stage from raw material inspection to final packaging. Key measures include:
- Spectral analysis for material composition verification
- Roundness measurement using laser scanning technology
- Surface roughness testing with atomic force microscopy
- 100% dimensional inspection for precision grades above G100
- Batch sampling for hardness and microstructure analysis
This rigorous approach has earned us recognition as a national high-tech enterprise and national science-based SME, positioning us among China’s top three steel ball manufacturers in both production scale and technical capability.
Complete Export Service Package
Understanding the complexities of international trade, we provide comprehensive export services beyond product manufacturing:
- Document preparation: Full set of compliance documents including certificates of origin, material test reports, and quality certificates
- Custom packaging: Anti-corrosion packaging, shock-proof containers, and branded packaging solutions
- Logistics coordination:
- Payment flexibility: Acceptance of letters of credit, telegraphic transfers, and other international payment methods
Door-to-door shipping arrangements, customs clearance assistance, and insurance services
Our export team maintains deep expertise in regulations across major markets including the EU, North America, and Southeast Asia, ensuring smooth customs clearance and compliance with local technical standards. This full-service approach has made us the preferred supplier for international distributors and direct OEM customers in 45 countries.
FAQ
What is the minimum order quantity for custom steel balls?
Our minimum order quantity depends on the complexity of customization. For standard sizes with basic modifications, we can accept orders from 1,000 pieces. For fully custom shapes or materials, the MOQ typically starts at 500 pieces. We evaluate each custom request individually to provide optimal solutions.
How do you ensure dimensional consistency across large batches?
We implement multiple quality control measures for batch consistency: 1) Using high-precision CNC grinding equipment with automatic compensation systems 2) Implementing statistical process control (SPC) throughout production 3) Conducting 100% dimensional inspection for precision grades above G100 4) Performing regular equipment calibration and maintenance.
What surface treatments are available for corrosion resistance?
Our corrosion-resistant treatment options include: 1) Stainless steel material selection (304/316/440C) 2) Passivation treatment for stainless steel balls 3) Black oxide coating for carbon steel balls 4) Custom polymer coatings for specific chemical environments 5) Electroless nickel plating for both decorative and functional applications.
How quickly can you deliver standard product orders?
For standard products in our regular inventory, we can prepare shipments within 3 working days after order confirmation. For non-stock items, our standard lead time is 10-15 working days depending on production scheduling. We maintain safety stock for common sizes to ensure rapid response to urgent orders.
What after-sales support do you provide for exported products?
Our international after-sales service includes: 1) 24-hour technical support via email and phone 2) Free replacement for any quality defects within 12 months 3) Lifetime process consultation for all our products 4) On-site inspection assistance for major quality concerns 5) Regular product performance tracking for long-term customers.
Summary
As China’s leading full-category precision steel ball manufacturer, Changzhou Feige Steel Ball Co., Ltd. combines advanced production capabilities with comprehensive international trade services to deliver complete solutions for global industrial customers. Our 18,000㎡ production facilities, four international certifications, and 4,000 tons annual capacity ensure reliable supply of both standard and custom products across all precision grades. With complete export documentation services, custom packaging solutions, and 24-hour after-sales support, we simplify the international procurement process while maintaining the highest quality standards. Whether you require standard bearing steel balls, specialty stainless steel components, or fully customized solutions, our engineering team stands ready to develop optimal products for your specific applications.