Stone crasher crusher (also known as double-roll crushers) demonstrate exceptional performance in the field of stone crushing, particularly excelling in medium and fine crushing operations for medium to low hardness stone materials.

Stone Crasher Crusher

1. Core Performance Advantages

High-Efficiency Crushing and Precise Particle Size Control

Extrusion Crushing: Dual counter-rotating rollers generate high-pressure extrusion force (50-200MPa), progressively crushing materials through the “layer crushing” principle. This eliminates the instantaneous energy waste inherent in impact crushing, boosting crushing efficiency by over 30%.
Precise, Adjustable Particle Size: Hydraulic or mechanical adjustment of the roll gap (0.5-40mm) ensures uniform, concentrated output particle size with low needle and flake content (high cubic particle ratio). Over-crushing rate <10%, making it ideal for manufactured sand (0-5mm) and construction aggregate (5-40mm) production.

Energy Efficiency, Environmental Protection, and Cost-Effectiveness

Low Energy Consumption: Power consumption per ton of crushed material ranges from 0.7 to 1.2 kWh, achieving 30%-45% energy savings compared to traditional hammer crushers and impact crushers.
Environmental Compliance: Enclosed structure + pulse dust removal technology ensures dust emissions <20mg/m³ and noise ≤75dB(A), meeting green mining standards.
Low Maintenance Costs: High-chromium alloy roll liners last over 2 years; modular design enables 1-hour rapid replacement, reducing annual maintenance costs by tens of thousands of yuan.

Strong Adaptability and Stability

Wide Material Compatibility: Processes medium-to-low hardness materials (compressive strength ≤200MPa) like limestone, river pebbles, shale, and coal gangue. Maintains high efficiency even with moisture content ≤8% (features clog-free screen bottom design).
Overload Protection: Hydraulic springs automatically retract upon encountering hard objects to prevent equipment damage. Transmission system incorporates a hydraulic coupling to ensure continuous operation.