Portable rock roll crusher core structure and working principle
Portable roll crusher
Portable roll crusher is integrated by double roll crushing host and mobile chassis, the core components include:
Crushing system: two rollers rotate in opposite direction, crushing materials through extrusion and shear force, roll gap can be adjusted hydraulically or mechanically (wedge/shim device), controlling the size of discharged materials (usually 0-40mm).
Mobile chassis: tracked (complex terrain) or tyre (flat site), equipped with hydraulic steering and lifting system to achieve flexible steering and stable operating support.
Drive and Intelligent Control: High-voltage motor drive (up to 1600kW for some models), integrated PLC hydraulic system automatically adjusts the roller pitch, adapting to different material hardness and reducing the over-crushing rate.
High mobility and deployment efficiency
No need for fixed foundation, can be quickly transferred (crawler moving speed up to 1.2m/min), reduce the cost of material transport.
Applicable scenarios: on-site crushing of construction waste, temporary mining area of mines, river sand and gravel processing, etc.
Intelligent adjustment and efficient crushing
Hydraulic system adjusts roll spacing (1-20mm) in real time, adapting to hard rock such as river pebbles, granite (compressive strength ≤160MPa), with large crushing ratio and 30%-40% capacity increase.
Closed design + bag dust collector, reduce dust and noise pollution, in line with environmental standards.
Low operating cost
Wear-resistant rollers (high manganese steel/alloy liner) have a life span of more than 1 year, easy maintenance and short replacement time.
Energy consumption is 20%-30% lower than traditional equipment, integrated diesel engine or high voltage motor (2200kW total power), stable power.
Budget planning
Small tyre type: 500,000-800,000 RMB (e.g. 2PG0640);
Large tracked hydraulic type: 1,000,000-3,000,000 RMB (fully automated, high capacity model).
Additional costs: transport and installation (about 5%-10% of the equipment price), spare wear parts (roll body/liner annual consumption of 100,000-200,000 yuan).
Portable roll crushers, with the core value of ‘mobile deployment + intelligent crushing’, are particularly suitable for multi-site operations and hard rock fine crushing scenarios. Selection requires a balance between initial investment (model/configuration), long-term benefits (energy consumption, maintenance costs) and environmental compliance. It is recommended to prioritise models with integrated hydraulics and high wear-resistant design (e.g. WMS 2PG series) to ensure high ROI and sustainable production.
