Is the roll skin of a roll crusher wear-resistant? The wear problem of roll skin of roll crusher can be effectively solved by the following comprehensive solutions.? Covering material selection, design optimisation, operation specification and maintenance technology to prolong the service life.

Roller crusher with wear-resistant alloy steel roll skin

The rolls of the roll crusher of Huashengming Heavy Industry adopt special wear-resistant alloy steel casting, such materials have high hardness and strong impact resistance, which prolongs the service life of the rolls. For high hardness materials (such as river pebbles, quartz sand), it is necessary to target the selection of materials that match the characteristics of the material. Optimise the shape and thickness of the roll surface to reduce local stress concentration; adjust the roller gap and the shape of the crushing chamber to improve crushing efficiency while reducing wear; adopt symmetrical feed opening design to ensure even distribution of materials and avoid partial grinding.

Special wear-resistant alloy steel roller skin

Uniform feeding and parameter adjustment

Installation of dispersing device to control feeding speed and particle size to avoid overload operation; Dynamic adjustment of roll speed.? Pressure and gap through intelligent system to adapt to different material characteristics. Avoid improper operation, idle at start-up before feeding, and the material has been emptied before stopping. Prohibit prolonged overload operation, regularly monitor the motor current and temperature (recommended motor temperature ≤85℃).

Regular maintenance and lubrication of roller crusher.

Establish an inspection system, check the bolt tightness, bearing status and lubrication every shift.

Use special lubricants, clean the bearings and replace the grease every 3 months.

Clean up the dust inside the equipment to prevent impurities from aggravating the wear.
Wear repair technology

Surfacing repair: use layered surfacing for rollers with good weldability to restore surface wear resistance.

Wear layer replacement: grind the old layer and cover it with new material (e.g. carbon nano-polymers) in case of severe wear to improve repair efficiency.

Component replacement: replace wear parts such as tooth plates and bearings regularly to ensure the performance of the equipment.

Handling of high hardness materials: optimise crushing process, pre-screening to remove oversized particles and reduce the impact load of rollers.

Humidity control: drying and pre-treatment of wet materials to avoid adhesion and increase wear.

Through the above measures, the wear rate of roll sand making machine can be significantly reduced, prolonging the life of the equipment and guaranteeing the production efficiency. In actual application, it is necessary to flexibly combine the programmes according to the material characteristics, equipment models and working conditions, and at the same time strengthen the operator training and management system.