River pebbles, with their high hardness (Mohs 6-7), strong wear resistance and low impurity content, are premium raw materials for construction sand. When configuring a river pebbles sand making machine, the roller crusher stands out as the core solution among various crushing equipment, thanks to its targeted performance advantages:
Roller Crusher
1. Precise Adaptation to River Pebble Characteristics
Adopting double-roll extrusion with high-chromium alloy wear-resistant surfaces, it resists Mohs 6-7 hardness effectively, extending service life by 20%. Optimized crushing chamber avoids blockage, ensuring 24-hour continuous operation.
2. Superior Quality of Finished Sand
Extrusion crushing produces cubic sand with uniform gradation and 3%-5% needle-flake content (well below 15% industry limit). It meets construction standards directly without additional shaping, boosting efficiency and value.
3. Efficient and Cost-Saving Operation
Unit energy consumption is 30%-40% lower than traditional crushers. Over-crushing rate (2%-3%) raises raw material utilization to over 95%. Fewer wearing parts cut annual maintenance costs by 15%-25%.
4. Flexible Adaptation to Diversified Needs
toe,inglessthanStepless roll gap adjustment controls 0-5mm discharge for fine/medium/coarse sand. Compact structure (60% of traditional space) eases integration and cuts infrastructure costs.
ingWith advantages in adaptability, quality, efficiency and cost, it’s the irreplaceable core of river pebbles sand making machine, enabling quality and efficiency improvement.
double roller crusher
