Custom Precision Balls & Optical Ball Lens Supplier
- Hengyuan is one of the leading high-precision ball and optical lens manufacturers in China.
- We have more than 16 years of experience in precision grinding and polishing manufacturing.
- We currently offer thousands of custom and standard precision spheres to fit your applications.
- 5 Production Plants | 12+ Precision Grinding Lines | Grade 10-25 Precision | 1000+ Industrial Clients
- Hengyuan exports our precision spheres and optical lenses to more than 30 countries at wholesale prices.
- Our components are widely trusted in Europe, America, the Middle East, Asia, and Africa.
- Partner with us to create custom high-consistency components for your engineering needs.
Precision Perfected Spheres Redefined
Optical Ball Lenses
Optical ball lenses are a high-refractive variant for precision fiber coupling.
Optical Half Ball Lenses
Optical Half Ball Lenses are commonly used in fiber communications, endoscopy, and laser measurement systems.
Rod Lenses
Precision rod lenses are a high-performance variant featuring 360-degree polished circumferences for rigid endoscopes.
Flat Lenses Windows
Flat lenses and windows are commonly used in sensor enclosures, imaging systems, and laser protection devices.
Custom Zirconia Ball Sizes & Applications
Custom Zirconia Ball Sizes & Applications
At Hengyuan, our premium zirconia spheres are custom-engineered across a comprehensive range of diameters to perfectly match your specific production environments:
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Micro-Sizes (0.5mm – 3mm): Engineered with exceptional thermal sensing for oxygen sensors, solid oxide fuel cells (SOFC), and high-purity micro-milling.
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Standard Sizes (4mm – 25mm): Features high bending strength and a thermal expansion rate comparable to metals, ideal for high-temperature bearings and precision valve seals at 600℃.
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Large-Diameter (30mm – 50mm+): Designed with superior adiabatic and refractory properties for induction heating, industrial furnaces, and heavy-duty textiles.
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High Precision Silicon Nitride (Si3N4) Balls
Hengyuan manufactures premium silicon nitride ceramic balls designed for high-speed, extreme-temperature, and electrically sensitive environments. Weighing 60% less than steel with an elite hardness that reduces skidding and wear under rapid acceleration, our precision Si3N4 spheres are engineered across multiple size tiers to optimize system cooling and eliminate bearing failure:
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Miniature Sizes (e.g., 1/4″ & under): 100% electrically non-conductive, serving as the modern industry standard for hybrid bearings in Electric Vehicles (EV) and e-motors to completely prevent galvanic corrosion.
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Standard Mechanical Sizes: Designed with a low coefficient of thermal expansion and minimal lubrication needs, ideal for high-RPM machine tool spindles, automotive engine parts, and chemical pumps.
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Significant Industrial Sizes (e.g., 1 1/2″ & over): Retains extreme structural strength and hardness up to 1800°F (982℃), heavily specified for mission-critical aerospace turbines, military defense hardware, and NASA-level space programs.
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