The double tooth roll crusher is a coarse crushing equipment widely used in mining, metallurgy, building materials, and other industries for medium-hard materials. Its core working principle involves utilizing two counter-rotating toothed rollers to crush materials to the desired particle size through splitting, compression, and shearing actions.

The equipment features a compact structural design, primarily consisting of the frame, toothed rollers, transmission device, and adjustment mechanism. Of the two rollers, one is fixed while the other is movable. The movable roller is equipped with a spring or hydraulic system that provides pressure and can automatically retract when encountering non-crushable objects, effectively protecting the main body of the equipment. The tooth profile on the roller surface can be customized based on material characteristics (such as viscosity, hardness, and particle size). For example, long teeth are suitable for sticky materials, while wolf-tooth profiles are used for blocky, brittle materials to enhance crushing efficiency and target specific applications.

The outstanding advantages of the double tooth roll crusher include low over-crushing rate, uniform product particle size, simple structure, and easy maintenance. It is particularly well-suited for crushing materials such as coal, coke, limestone, and mudstone, making it a key piece of equipment in primary crushing processes that balances efficiency and cost. With ongoing technological advancements, continuous optimizations in drive methods, wear-resistant materials, and intelligent control systems further enhance its reliability, providing robust support for industrial production.