Double Roll Crusher 10TPH to 80TPH for sand making with toothed or smooth roll

1.Product Introduction stone crusher plant

This is a double-roll crusher designed for sand making. It crushes materials by squeezing them between two counter-rotating rollers. With a capacity ranging from 10 to 80 tons per hour (t/h), the roller surfaces can be configured with or without teeth. It is ideal for the fine crushing and shaping of medium-hard materials."

2.Application stone crusher plant

• Toothed Roll Crusher

The roller surfaces are equipped with saw-toothed teeth. Material is crushed through the shearing and tearing actions between the teeth. This design is specifically suited for processing materials with high moisture content or high viscosity, such as coal gangue and shale. It offers high crushing efficiency and effectively prevents clogging.

• Smooth Roll Crusher

The roller surfaces are smooth, and crushing is achieved primarily through compression (squeezing). This type is suitable for materials with lower hardness and higher brittleness, such as limestone and dolomite. It produces a more uniform particle size in the final output and generates relatively less dust.

3.Working Principle

The double-roll crusher primarily consists of rollers, support bearings, a compression adjustment mechanism, and a drive unit. Its core operating principle involves two cylindrical rollers rotating in opposite directions. Material is drawn into the crushing chamber formed between the rollers through friction, where it is crushed by compression and shearing forces. ‌The discharge particle size is controlled by adjusting the gap between the two rollers: the wedge device alters the gap size by raising or lowering the wedge block via an adjustment bolt, while the shim device achieves adjustment by adding or removing shims or varying their thickness.‌ When encountering excessively hard or non-crushable objects, the movable roller automatically retreats under spring or hydraulic force, increasing the gap to expel the foreign object and providing overload protection.‌

4.Advantages

• Flexible Capacity: With a processing range of 10–80 TPH (tons per hour), it covers the needs of small to medium-sized sand and gravel production lines. It is ideally suited for the medium and fine crushing stages of manufactured sand preparation.
• Controllable Particle Shape: By adjusting the gap between the two rollers, the discharge particle size can be precisely controlled. This minimizes over-crushing and significantly enhances the quality of the final aggregate.
• Simple Structure & Easy Maintenance: The equipment features a compact design and stable operation. Its low failure rate makes it perfect for continuous, heavy-duty environments.
• Dry & Wet Versatility: Models equipped with toothed rollers are specifically designed for wet materials. They resist sticking and clogging, offering excellent adaptability to various working conditions.

5.Technical Specifications

6.Our Solutions