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What Are The Types Of Toothed Rollers For Mineral Sizers?

Mar 16, 2026

The Mineral Sizer is a widely used crushing equipment in the mining and mineral processing industry, mainly used to crush large pieces of ore into smaller-sized and more uniformly shaped materials. This equipment achieves efficient crushing of materials through the relative rotation of a set of toothed rollers. Due to its compact structure and large processing capacity, the mineral sizer can effectively reduce the generation of fine particles during the crushing process and is suitable for processing various materials such as coal, ore, gypsum, and clay.

 

Mineral Sizer Structure

Mineral sizer crusher is mainly composed of drive device, toothed roller, synchromesh gear, housing, base frame, lubrication device, running gear and so on.

Mineral Sizer Structure

 

Mineral Sizer Toothed Roller

Toothed roller can be divided into Primary Sizer Toothed Roller and Secondary Sizer Toothed Roller. Easy installation and disassembly of the mineral sizer tooth head, which can significantly reduce the maintenance time and lower the maintenance cost.

 

 Primary Mineral Sizer

The Primary Sizer serves as a key piece of equipment for coarse crushing operations in open-pit mining projects. It is designed to handle large-sized raw materials such as coal, oil shale, bauxite, limestone, and other minerals, efficiently reducing them to a medium size, typically within the range of 200–300 mm. This process ensures a consistent and uniform feed for downstream equipment, such as secondary crushers, conveyors, or screening systems, thereby improving the overall efficiency and stability of the production line. With its robust design and high processing capacity, the Primary Sizer is capable of withstanding heavy-duty workloads while maintaining reliable performance under demanding conditions.

The Primary Sizer strong impact resistance and ability to process materials with varying hardness levels make it particularly suitable for harsh working environments, including sites with high moisture content or sticky materials. By minimizing oversized material and reducing the need for additional crushing stages, it helps lower operating costs, improve processing capacity, and enhance the productivity of large-scale mineral processing operations.

Primary Mineral Sizer Toothed Roller

 

 Secondary Mineral Sizer

The Secondary Sizer is a key component in mineral processing lines, designed for the medium and fine crushing stages following primary crushing. It further reduces material sizes-typically from 50–100 mm down to the required dimensions-ensuring that the feed is suitable for subsequent screening processes or direct loading to transport systems. With advanced crushing mechanisms and efficient material handling, it delivers precise particle size control and a low over-crushing rate, which not only maintains product quality but also minimizes waste and reduces wear on downstream equipment.

The Secondary Sizer is widely used in industries such as mining, coal mine, cement production, power generation, and in some other industries, where precise sizing and consistent product quality are critical. It is particularly effective in handling coal, oil shale, bauxite, clay,copper, limestone, topsoil and other minerals.

Secondary Mineral Sizer Toothed Roller

 

If you still have any questions, are unsure about how to distinguish the types of the toothed rollers in the mineral sizer, the differences in application scenarios between the primary toothed roller and the secondary toothed roller, or if you want to combine your own crushing requirements (such as processing materials like ores, coal, gypsum, etc., for coarse crushing, medium and fine crushing processes), and choose the appropriate type of toothed roller and understand the installation and maintenance techniques of the toothed roller, please feel free to contact us at any time.
We focus on the
Mineral Sizer field and are familiar with the structural characteristics and application points of various toothed rollers. By considering your production conditions, material properties and crushing requirements, we can provide you with precise toothed roller selection suggestions, technical solutions and matching plans. This will help you avoid selection mistakes, reduce maintenance costs, ensure the efficient and stable operation of the crushing equipment, and help improve production efficiency.