At Yunshuo Precision Balls, we combine cutting-edge technology and rigorous quality control to deliver high-performance steel balls for industries worldwide. Below is an in-depth look at our 12-step manufacturing process, ensuring unparalleled precision and reliability:
1. Raw Material Inspection
Every batch of raw material is meticulously tested for composition and consistency. For wire rods, we perform wire drawing to achieve the precise diameter required for production.
2. Cold Heading
In a controlled environment, raw material undergoes plastic deformation at room temperature to form spherical blanks.
3. Flashing
Surface rings and imperfections are removed from the blanks, improving roughness and achieving a near-spherical shape.
4. Heat Treatment
Blanks are carburized, quenched, and tempered in advanced mesh-belt furnace systems. Real-time monitoring of time and temperature ensures uniform hardness, toughness, and crush resistance.
5. Peening
Steel balls are subjected to high-impact peening, enhancing surface compressive stress and hardness through controlled collisions.
6. Grinding
Precision grinding between fixed iron plates and rotating abrasive wheels refines surface quality and geometric accuracy.
7. Primary Lapping
Using cast iron lapping plates and abrasive compounds, we achieve micron-level surface smoothness under calibrated pressure.
8. Visual Inspection & Defect Detection
100% manual inspection followed by advanced AVKIO testing (photoelectric, eddy current, and vibration analysis) to eliminate surface cracks, internal flaws, or material defects.
9. Precision Lapping
A second lapping stage further enhances roundness and surface finish, ensuring compliance with strict tolerances.
10. Ultrasonic Washing
Spiral washers and filtered cleaning solutions remove residues while preserving surface integrity.
11. Final Quality Assurance
Each batch undergoes final checks for roundness, hardness, metallographic structure, and stress levels, aligned with ISO standards.
12. Anti-Rust Treatment & Packaging
Balls are coated with anti-corrosion oil and packaged according to client specifications (e.g., vacuum sealing, bulk containers).
Why Choose Yunshuo Precision Balls?
Certified Excellence: ISO 9001-compliant processes.
Custom Solutions: Tailored sizes (0.5mm–50mm) and materials (stainless steel, ceramic).
Global Reach: Trusted by aerospace, automotive, and medical industries.
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