Products

1.Impact Crushing: Directly break large materialsWhen the ball mill is running, alumina grinding balls rotate with the inner wall of the mill cylinder to a certain height, then fall or cascade freely under gravity.

The falling grinding balls produce strong impact force on the large materials in the cylinder, directly crushing them into smaller particles.

The performance of alumina grinding balls is determined by their alumina content (purity). Different purity levels correspond to different application scenarios, and their suitability for ultra-fine grinding is also classified accordingly. 

Alumina grinding balls, also known as wear-resistant ceramic balls, ceramic balls, porcelain balls, corundum balls, grinding balls, high-alumina balls, microcrystalline alumina balls, etc., are made from high-quality alumina powder as the raw material, mixed with bauxite and roller bar powder. They undergo processes such as batching, grinding, powder making, forming, drying, and calcination—quite literally going through "eighty-one trials"—and are mainly used as grinding media in the form of grinding balls. They come in various specifications with diameters ranging from 0.5mm to 80mm, offering a wide range of choices.

1. Used as Ceramic MaterialSpherical micro-powder possesses excellent press-forming and sintering properties, which are extremely beneficial for producing high-quality ceramic products.

Our 99.5% High Purity Alumina Grinding Bead is a specialized milling medium engineered exclusively for pigment dispersion—addressing the critical challenges of pigment processing, such as preserving color accuracy (no impurity-induced color distortion), achieving uniform particle size distribution (to ensure consistent tinting strength), and minimizing wear (to avoid contamination of pigment pastes). Crafted from 99.5% high-purity alumina powder via precision manufacturing processes—including ultra-fine raw material screening (particle size ≤0.3μm) to eliminate color-altering impurities, isostatic pressing for homogeneous density (preventing uneven wear), high-temperature sintering (1700℃–1780℃) for full densification, and precision spherical polishing (sphericity ≤0.03mm) for smooth milling action—this bead delivers reliable, high-quality dispersion results for all types of pigments (organic, inorganic, metallic, and carbon-based).

Composition
The main component is Al₂O₃, the purity is more than 99.9%, and the impurity content is very low (such as Na, K, Si and other elements are usually in ppm). The purity of some products can reach 99.99%, and the content of radioactive isotopes (such as U and Th) is very low, which is suitable for scenes with strict purity requirements.

99% purity alumina grinding ball is a kind of high purity, high wear resistance ceramic grinding medium, widely used in chemical, electronics, ceramics and other industries fine grinding and dispersion. The following is its detailed introduction, parameters and uses:

BPA

General Character

Feature
1.Excellent abrasion resistance
Abrasion resistance is higher than the zirconia beads. when the high hardness ceramics is ground,
2.High purity
The purity of the alumina beads is 99.99%or more. When grinding, no contamination other than alumina.
3.Excellent corrosion resistance
It is excellent in corrosion resistance to the acid and the alkali.
No performance deterioration in the warm water.
4.Energy saving of grinding and dispersion
The density of alumina is 2/3 of the zirconia bead, and the filling weight to the mill is 2/3.
In addition, the consumption energy when grinding can be decreased.