Bauxite: A Key Alumina-Rich Sedimentary Rock
Bauxite, a sedimentary rock rich in aluminum oxide (alumina), serves as the core raw material for producing metallic aluminum and alumina. It primarily forms in weathering environments of tropical and subtropical regions, exhibiting uneven global distribution with typical characteristics like reddish-brown color and pisolitic texture. Beyond its role as the cornerstone of the aluminum industry, high-grade bauxite is also a vital raw material for refractory materials and abrasives. The stable supply of bauxite is crucial to the modern industrial society.

Types and Characteristics of Bauxite
Bauxite can be classified into multiple grades based on its aluminum content, such as 85%, 75%, 65%, and 55%. These grades primarily consist of aluminum, along with trace impurities like iron and silicon. Their key mineral components include diaspore and gibbsite.

Raw material refers to uncalcined natural ore that retains its original mineral structure. It is mostly used as cement admixtures or chemical fillers. Clinker undergoes high-temperature calcination to remove crystal water, resulting in increased aluminum content and dense structure. It serves as a key raw material for high-end ceramics, refractory bricks, and electrolytic aluminum.
The Diverse Applications of Bauxite
Bauxite, an otherwise ordinary industrial mineral, plays a pivotal role in modern industry, with its applications spanning almost every corner of the industrial landscape.
From refractory materials for high-temperature kilns to exquisite ceramic products, from electrolytic aluminum production that underpins modern industry to key shell materials in precision casting, and even to emerging uses in environmental protection—bauxite leverages its unique physical and chemical properties to provide robust support for the development of modern industry.
Bauxite Powder Grinding and Deep Processing

Facing the characteristics of bauxite's moderate hardness and wide span of fineness requirements, SBM, with nearly four decades of R&D and manufacturing experience in grinding equipment, provides efficient, energy-saving and environment-friendly overall solutions for bauxite powder grinding and deep processing. This helps customers reduce costs and increase efficiency, while enhancing their core competitiveness.
Selection of Bauxite Grinding Equipment
Different application scenarios have varying requirements for the fineness and capacity of bauxite powder. As a professional grinding equipment manufacturer, SBM provides appropriate equipment selection solutions for bauxite grinding based on its extensive experience and advanced technologies.
LM Vertical Mill

Integrates five functions: crushing, grinding, powder selection, drying, and conveying, featuring a small footprint, high efficiency, energy conservation, and environmental protection.
Operates under full-sealed negative pressure with minimal vibration, meeting the environmental protection requirements of modern industrial production.
Effectively controls the particle size and purity of the finished product to meet high-quality production needs.
Equipped with an automated control system for flexible operation, reducing labor costs and complexity.
MTW European Trapezium Grinding Mill

Curved blade design expands the grinding area, combined with a resistance-free air inlet volute to reduce energy consumption and achieve energy-saving effects.
High-efficiency cage-type powder separator enables flexible fineness adjustment between 80-325 mesh, effectively preventing the "coarse powder escape" phenomenon and ensuring stable and reliable product quality.
Thin oil lubrication system extends bearing life, ensures smooth operation, and reduces maintenance costs.
LUM Ultra-fine Vertical Grinding Mill

Features uniquely designed grinding curves for roller sleeves and liners, a special pre-compaction device, and a layer grinding principle, ensuring high grinding efficiency and superior product quality.
Adopts ultra-fine grinding, multi-head powder selection, and an intelligent control system, integrating advanced powder selection technology for high efficiency and energy conservation.
Grinding rollers do not directly contact the grinding table. Made of high-quality materials, the rollers can be turned out of the machine shell for maintenance.
Full-sealed structure ensures dust emissions are far below national standards.
SCM Ultra-fine Mill

Under the same fineness and power conditions, it has a 40% higher output than air mills and reduces energy consumption by 20%.
The finished product fineness is adjustable from 325 to 2500 mesh, and it can 一次性 (directly) meet the standard of d97≤5μm in one pass.
Equipped with high-efficiency pulse dust collectors and mufflers, it operates without dust or noise pollution.
Bauxite, a sedimentary rock rich in aluminum oxide (alumina), serves as the core raw material for producing metallic aluminum and alumina. It primarily forms in weathering environments of tropical and subtropical regions, exhibiting uneven global distribution with typical characteristics like reddish-brown color and pisolitic texture. Beyond its role as the cornerstone of the aluminum industry, high-grade bauxite is also a vital raw material for refractory materials and abrasives. The stable supply of bauxite is crucial to the modern industrial society.

Types and Characteristics of Bauxite
Bauxite can be classified into multiple grades based on its aluminum content, such as 85%, 75%, 65%, and 55%. These grades primarily consist of aluminum, along with trace impurities like iron and silicon. Their key mineral components include diaspore and gibbsite.

Raw material refers to uncalcined natural ore that retains its original mineral structure. It is mostly used as cement admixtures or chemical fillers. Clinker undergoes high-temperature calcination to remove crystal water, resulting in increased aluminum content and dense structure. It serves as a key raw material for high-end ceramics, refractory bricks, and electrolytic aluminum.
The Diverse Applications of Bauxite
Bauxite, an otherwise ordinary industrial mineral, plays a pivotal role in modern industry, with its applications spanning almost every corner of the industrial landscape.
From refractory materials for high-temperature kilns to exquisite ceramic products, from electrolytic aluminum production that underpins modern industry to key shell materials in precision casting, and even to emerging uses in environmental protection—bauxite leverages its unique physical and chemical properties to provide robust support for the development of modern industry.
Bauxite Powder Grinding and Deep Processing

Facing the characteristics of bauxite's moderate hardness and wide span of fineness requirements, SBM, with nearly four decades of R&D and manufacturing experience in grinding equipment, provides efficient, energy-saving and environment-friendly overall solutions for bauxite powder grinding and deep processing. This helps customers reduce costs and increase efficiency, while enhancing their core competitiveness.
Selection of Bauxite Grinding Equipment
Different application scenarios have varying requirements for the fineness and capacity of bauxite powder. As a professional grinding equipment manufacturer, SBM provides appropriate equipment selection solutions for bauxite grinding based on its extensive experience and advanced technologies.
LM Vertical Mill

Integrates five functions: crushing, grinding, powder selection, drying, and conveying, featuring a small footprint, high efficiency, energy conservation, and environmental protection.
Operates under full-sealed negative pressure with minimal vibration, meeting the environmental protection requirements of modern industrial production.
Effectively controls the particle size and purity of the finished product to meet high-quality production needs.
Equipped with an automated control system for flexible operation, reducing labor costs and complexity.
MTW European Trapezium Grinding Mill

Curved blade design expands the grinding area, combined with a resistance-free air inlet volute to reduce energy consumption and achieve energy-saving effects.
High-efficiency cage-type powder separator enables flexible fineness adjustment between 80-325 mesh, effectively preventing the "coarse powder escape" phenomenon and ensuring stable and reliable product quality.
Thin oil lubrication system extends bearing life, ensures smooth operation, and reduces maintenance costs.
LUM Ultra-fine Vertical Grinding Mill

Features uniquely designed grinding curves for roller sleeves and liners, a special pre-compaction device, and a layer grinding principle, ensuring high grinding efficiency and superior product quality.
Adopts ultra-fine grinding, multi-head powder selection, and an intelligent control system, integrating advanced powder selection technology for high efficiency and energy conservation.
Grinding rollers do not directly contact the grinding table. Made of high-quality materials, the rollers can be turned out of the machine shell for maintenance.
Full-sealed structure ensures dust emissions are far below national standards.
SCM Ultra-fine Mill

Under the same fineness and power conditions, it has a 40% higher output than air mills and reduces energy consumption by 20%.
The finished product fineness is adjustable from 325 to 2500 mesh, and it can 一次性 (directly) meet the standard of d97≤5μm in one pass.
Equipped with high-efficiency pulse dust collectors and mufflers, it operates without dust or noise pollution.