Overview of Centerless Grinding High-accuracy 99% 99.5% Al2O3 Alumina Ceramic Polished Rods

Centerless Grinding High-accuracy 99% 99.5% Al2O3 Alumina Ceramic Polished Rods is precision-manufactured from 99% aluminum oxide (Al₂O₃), delivering exceptional thermal stability and mechanical properties. These rods maintain structural integrity in extreme environments up to 1800°C, making them perfect for demanding industrial and research applications.

With outstanding resistance to wear, corrosion and thermal shock, alumina rods are widely used in high-temperature fixtures, sensor components, semiconductor equipment, and laboratory apparatus.

Key Features of Centerless Grinding High-accuracy 99% 99.5% Al2O3 Alumina Ceramic Polished Rods

Extreme Temperature Resistance – Continuous operation up to 1800°C

Superior Mechanical Strength – High hardness and wear resistance

Excellent Thermal Shock Resistance – Withstands rapid temperature changes

Electrical Insulation – High dielectric strength for electronic applications

Chemical Inertness – Resists acids, alkalis and corrosive environments

Precision Dimensions – Tight tolerances for critical applications

(Centerless Grinding High-accuracy 99% 99.5% Al2O3 Alumina Ceramic Polished Rods)

Specification of Centerless Grinding High-accuracy 99% 99.5% Al2O3 Alumina Ceramic Polished Rods

Our centerless grinding high-accuracy alumina ceramic rods deliver precision performance for demanding applications. These polished rods come in two material grades: 99% and 99.5% Al2O3 purity. Both grades undergo rigorous centerless grinding. This process ensures exceptional dimensional accuracy and surface uniformity. Tight tolerances are maintained consistently along the entire rod length.

The polished finish minimizes surface roughness significantly. This reduces friction and wear during operation. Alumina ceramic offers outstanding hardness and rigidity. It resists abrasion effectively even under heavy loads. High temperature stability is another key advantage. These rods withstand thermal shock up to 1600°C without degrading.

Electrical insulation properties make them ideal for electronic components. They prevent current leakage reliably. Chemical inertness ensures compatibility with acids, alkalis, and solvents. Corrosion resistance extends service life in harsh environments. These rods maintain dimensional stability across temperature fluctuations.

Standard diameters range from 1mm to 30mm. Custom lengths and tolerances are available upon request. Applications span semiconductor manufacturing, medical devices, laser systems, and precision instruments. They serve well as guide rods, insulating shafts, sensor components, and bearing sleeves.

Material density remains high at 3.8 g/cm³. This provides excellent mechanical strength. The 99.5% grade offers slightly better performance for critical applications. Surface finish achieves Ra ≤ 0.2μm after precision polishing. Straightness deviations are controlled within 0.01mm per 100mm length.

These rods eliminate contamination risks in cleanroom settings. They generate no particles during use. Installation is straightforward with standard machining techniques. Handling requires no special precautions beyond basic ceramic care.

(Centerless Grinding High-accuracy 99% 99.5% Al2O3 Alumina Ceramic Polished Rods)

Applications of Centerless Grinding High-accuracy 99% 99.5% Al2O3 Alumina Ceramic Polished Rods

These polished alumina ceramic rods deliver exceptional performance where precision matters. We start with high-purity Al2O3 ceramic, 99% or even 99.5%. This purity ensures outstanding hardness, wear resistance, and stability under tough conditions like heat, chemicals, and electrical stress. The key is our centerless grinding process. It achieves tight dimensional accuracy and a superb surface finish consistently. This method grinds the rod’s outer diameter without needing centers to hold it. So, we get perfectly round rods with minimal runout. The surface is incredibly smooth after careful polishing. This minimizes friction and prevents particle generation.

These features make our rods ideal for demanding applications. They work perfectly as precision shafts and rollers in semiconductor equipment. The smooth surface and hardness prevent contamination. In medical devices, their biocompatibility and smoothness are crucial. They function reliably as guides or components in pumps and valves. The rods serve as strong, wear-resistant spindles and fixtures in measurement tools. Their electrical insulation is vital in sensors and high-voltage equipment. The thermal stability allows use in furnace components and high-temperature machinery. These rods also excel as wear parts in industrial machinery, outlasting metal alternatives. Their corrosion resistance is essential in chemical processing equipment.

The combination of purity, precise grinding, and polishing creates a reliable component. It withstands harsh environments while maintaining exact dimensions and smooth operation. This solves problems in fields needing dependable, high-performance materials.

Company Profile

Alumina Technology Co., Ltd,. We focus on the research and development, production and sales of alumina products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Alumina Boat, Alumina Crucible, Alumina Dish, Alumina Foam Filter, Alumina Plate, Alumina Rod, Alumina Bar, Alumina Balls, Filter Alumina, Nano Alumina Powder, Spherical Alumina Powder, ect. please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Centerless Grinding High-accuracy 99% 99.5% Al2O3 Alumina Ceramic Polished Rods

What are these ceramic rods made of?
They use high-purity alumina. Alumina is aluminum oxide (Al2O3). The purity is either 99% or 99.5%. This high purity gives excellent properties. It makes the rods very hard. It makes them resistant to wear. It makes them resist chemicals well. It makes them handle high temperatures.

Why is centerless grinding important?
Centerless grinding achieves extreme precision. It ensures the rod diameter is very consistent along its whole length. The tolerance is exceptionally tight. This process creates perfectly round rods. It removes any wobble or irregular shape. Consistent size is critical for many demanding applications.

What does the polished surface do?
Polishing creates an ultra-smooth finish. A smooth surface reduces friction significantly. Less friction means less wear over time. It also prevents material sticking to the rod. This is vital for smooth operation. It helps maintain precision in moving parts. It extends the rod’s service life.

What sizes can you make?
Manufacturers produce rods in many diameters. Common sizes range from very small (like 1mm) to larger diameters (like 50mm or more). Lengths are also customizable. Specific size capabilities depend on the grinding equipment. Most suppliers can meet various size requests.

Where are these rods typically used?
These precision rods serve tough jobs. You find them in semiconductor manufacturing equipment. They work well in high-temperature furnace components. They are essential in precise pump shafts and valves. Medical devices often use them. They perform reliably in corrosive chemical environments. Any application needing extreme hardness, dimensional accuracy, and stability uses them.

(Centerless Grinding High-accuracy 99% 99.5% Al2O3 Alumina Ceramic Polished Rods)