Roller crusher for sand making
The Roller crusher for sand making is a type of sand-making equipment that uses the compressive, shearing, and grinding forces generated by the relative rotation of two rolls to crush material. As ore, rock, or river pebbles enter the crushing chamber, the two high-strength, wear-resistant rolls compress and shear the feed material, producing manufactured sand that meets the composite standards for construction sand.
Featuring a simple structure, stable operation, good particle shape of the final product, and low over-crushing rate, this equipment is one of the commonly used crushing and sand-making machines in artificial sand production lines.
Working Principle
The Roller crusher for sand making uses the high compressive force generated by the relative rotation of its high-strength, wear-resistant alloy crushing rolls to break down material. As feed enters the gap between the two rolls, it is subjected to compressive and shearing forces from their counter-rotating motion. Through a combination of squeezing, shearing, and intermeshing grinding, the material is reduced to the desired sand particle size and discharged through the outlet.
Structure and Components:
The Roller crusher for sand making mainly consists of crushing rolls, an adjustment device, a spring safety mechanism, a transmission system, and a frame. The crushing rolls are the primary working components and are composed of shafts, hubs, and roll sleeves. The adjustment device is used to regulate the gap between the crushing rolls in order to control the product particle size. The spring safety mechanism ensures reliable operation and provides overload protection. The transmission system drives the crushing rolls, and the frame serves as the foundational structure of the entire machine.
Performance Features
Particle Size Control
By adjusting the gap between the crushing rolls, the discharge particle size can be precisely controlled, ensuring that the manufactured sand meets national standards and satisfies the sand requirements of various industries.
Excellent Particle Shape
The final product exhibits a multi-faceted, angular shape with good gradation and a low over-crushing rate, making it suitable for construction and other industries with strict particle shape requirements.
Energy Efficiency
The equipment operates smoothly with low energy consumption. Compared with some impact-type sand making machines, it offers significant energy savings and helps reduce production costs.
Simple Structure
The overall design is compact and streamlined, allowing for easy installation. A customizable mobile version is also available for convenient use across different job sites.
Easy Maintenance
Wear primarily occurs on the roll surfaces, and the roll sleeves can be replaced quickly, resulting in low long-term maintenance costs.
Strong Adaptability
The machine accepts a wide range of feed moisture and processes various ores, river pebbles, and other materials with compressive strength under 250 MPa. Dust removal devices can also be added at feed and discharge points to meet environmental standards.
Application Fields
The Roller crusher for sand making features low impact, low dust, good particle shape, and minimal over-crushing, making it widely used in the following industries.
Advantages in Material Processing:
• Suitable for medium- to low-hardness materials such as coal, gypsum, slag, and limestone.
• Produces a uniform particle size with few needle-shaped or flaky particles.
• Features low over-crushing and controllable stone powder content, facilitating subsequent utilization.
• Strong adaptability to wet materials with a moisture content of ≤10%, minimizing the risk of clogging.
• Provides a moderate reduction ratio, suitable for one-pass shaping.
• Consumes less energy than impact-type equipment of equivalent capacity, offering good economic efficiency.
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