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Corundum Grinding Balls Φ0.5mm to Φ50mm

Corundum Grinding Balls Φ0.5-50mm Mohs 9 Al₂O₃

$100.00

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ATOMFAIR corundum grinding balls, high-purity α-Al₂O₃ ≥90%, Φ0.5–50mm. Mohs 9, ultra-hard wear-resistant, chemical stable. For medium-hard non-metallic mineral grinding. Default 5mm, 5kg.

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Description

CORUNDUM GRINDING BALLS Φ0.5-50MM MOHS 9 AL₂O₃

LABORATORY CONSUMABLES

Product Overview
ATOMFAIR® Corundum Grinding Balls are high-performance ceramic grinding media sintered at high temperature, with high-purity alumina (Al₂O₃, purity ≥90%) as the main raw material and an α-alumina structure. Featuring ultra-high hardness and chemical stability, they are widely used in planetary ball mills, vibration mills, rotary ball mills and other equipment, especially for scenarios with high requirements for grinding purity, wear resistance and corrosion resistance.

Product Features
  • Ultra-high Hardness & Wear Resistance: With a Mohs hardness of up to 9 (second only to diamond), its wear resistance is 5-10 times that of ordinary steel balls. It can maintain a complete spherical shape for a long time and reduce powder contamination caused by wear. Suitable for grinding high-hardness materials (such as silicon carbide, quartz, ceramic raw materials, etc.) and prolonging the service life of equipment.
  • Excellent Chemical Stability: Resistant to corrosion by strong acids, strong alkalis and organic solvents (except hydrofluoric acid), it is suitable for grinding corrosive materials (such as lithium battery materials, chemical catalysts, etc.). Stable performance at high temperatures, can be used for a long time in an environment below 1000℃.
  • High Density & Grinding Efficiency: The density is 3.6-3.9 g/cm³ (depending on the purity of alumina). The high density endows the grinding balls with stronger impact force, which can quickly crush materials to micron or submicron level. Compared with ordinary ceramic balls, it can shorten the grinding time and improve production efficiency.
  • Low Contamination: A dense structure is formed during the sintering process with almost no pores, avoiding impurity shedding during grinding and ensuring material purity (such as electronic ceramics, phosphors and other purity-sensitive materials).
  • Diverse Specification Options: With a wide diameter range (Φ0.5mm-Φ50mm), it can be flexibly selected according to the initial particle size of materials, target fineness and equipment type. Small particle size balls are suitable for ultra-fine grinding, while large particle size balls are more suitable for coarse crushing or high-energy impact requirements.

Technical Parameters
Parameter Specification
Diameter Φ0.5mm–Φ50mm
Main Component α-Al₂O₃ (≥90%)
Density 3.6 – 3.9 g/cm³
Hardness Very high, Mohs 9, HRC 80+
Wear Resistance (Wear Rate) Excellent, second only to zirconia
Contamination Risk Low, mainly introducing aluminum (Al) impurities
Main Application Fields Medium-hard non-metallic minerals such as ceramic glazes, quartz, feldspar, refractory materials.

Default Order: Diameter 5mm, Weight 5kg. For other sizes, please contact inquiry@atomfair.com to place your order.

* The above parameters are for reference only. Actual parameters shall prevail, and customized parameters are available for special requirements.
TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official quotations.
EMAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

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