The ultra-fine vertical mill is a large-scale grinding solution. It is designed for the continuous production of ultrafine mineral powder. It integrates grinding, drying, classifying, and conveying into one compact system. It is ideal for producers seeking high efficiency, reduced operating costs, and consistent ultrafine powder quality.

This equipment is widely used for producing ultrafine calcium carbonate, limestone, barite, calcite, kaolin, gypsum, and other non-metallic mineral powders.

Working Principle

Raw material is fed onto the rotating grinding table, where it is evenly distributed by centrifugal force.

Material is ground between the grinding rollers and table through compression and shear.

The ground powder is carried upward by hot airflow into the high-efficiency built-in classifier:

• Qualified fine particles are collected as the finished product
• Coarse particles are returned for re-grinding
• Heavy impurities are automatically discharged

This internal circulation system ensures stable fineness, high grinding efficiency, and uniform product quality.

Features

High grinding efficiency: It has a higher output per grinding pass. The optimized roller and liner profiles promote stable material layer formation and efficient ultrafine grinding.

High capacity with energy savings: It has lower power consumption per ton of powder. Its capacity can reach up to 50t/h. Compared with conventional mills, the energy consumption can be reduced by 30%-50% when producing the same fineness.

Low maintenance design: It can reduce your downtime and maintenance cost. The hydraulic roller swing-out structure enables easy maintenance. And the reversible roller sleeves and wear-resistant liners extend service life.

Environmental and low-noise operation: This vertical mill machine can operate cleanly. The sealed negative-pressure operation combined with the pulse collection minimizes dust emission and noise.

High automation level: You can get stable operation with reduced labor input. This mill machine is equipped with PLC automatic control system for centralized monitoring and remote operation.

Stable powder quality: It ensures consistent ultrafine powder quality. Short material residence time reduces over-grinding. The finished powder shows uniform particle shape, narrow size distribution, and high purity.

Application

DaswellPowder vertical mill machine is engineered for the continuous, dry grinding of soft to medium-hard non-metallic minerals(Moh’s hardness<4), where high volume and consistent quality are paramount.

Typical feed materials: Calcium carbonate, limestone, calcite, dolomite, kaolin, talc, barite, gypsum, petcoke, etc.

Target product fineness: It is capable of producing powders with top sizes (D97) ranging from 10 to 150 microns. This machine is suitable for high-value fillers and additives.

Applicable industries: The consistent, high-purity powder produced is critical for performance in:

• Plastics and polymer compounding
• Paints and coatings
• Paper industry
• Rubber and sealants
• Advanced functional materials

It is an ideal solution for manufacturers seeking stable, large-volume supply of premium mineral powders.