The double roller crusher, also known as the double-roller sand-making machine, can crush materials with compressive strengths up to 300 MPa.

With a feed size ≤80 mm and fine output particle size, it delivers effective sand-making capabilities during operation.

This excellent crushing and sand-making equipment is suitable for processing medium to high-hardness materials across various industrial sectors,

earning widespread popularity among customers. It features outstanding performance and high production efficiency.

It delivers substantial crushing force and simplified operation. Utilizing the double-roller crusher for high-yield processing enables efficient material utilization,

generating significant economic and social benefits. It is widely employed for crushing river pebbles, calcite, quartz, glass, marble, bentonite, bluestone, steel slag,

limestone, weathered sand, granite, basalt, and other materials. Many users are unfamiliar with the working principle and internal structure of double-roller crushers. Today,

we provide a detailed explanation:

Double Roller Crusher

1.Working Principle

The double roller crusher utilizes two independently driven roll shafts rotating in opposite directions to generate crushing forces through compression and abrasive shearing.

Material enters through the feed opening and falls between the two rolls. After being crushed by the opposing rolls, the finished product naturally discharges.

When encountering excessively hard or uncrushable material, the rollers automatically retreat via hydraulic cylinders or springs,

increasing the gap between the dual rolls. allowing the hard or uncrushable material to pass through unharmed.

This mechanism safeguards the machine from damage. The feed size of the final product can be controlled by adjusting the pressure of the hydraulic cylinders or springs governing the opposing rollers.