Double-roll crushers, also known as double-roll sand makers, utilize a roller design. The intense pressure generated between the two rollers crushes materials into powder and granular forms, effectively handling both dry and wet materials. Widely applied in large coal preparation plants, mining, construction, highways, metallurgy, chemical, cement, and other industries, it primarily processes limestone, granite, slag, sandstone, shale, and various other mineral materials for medium and fine crushing. Two motors drive two sets of roller shafts to squeeze and grind the material. The hydraulic double-roll crusher is designed for fine crushing operations with feed sizes under 80mm and finished product requirements ranging from 50 mesh to 20mm.
1.Advantages of Double Roll Crushers
95% Sand Production Rate
The double roll crusher builds upon traditional sand-making technology by integrating six intelligent systems, installation technology systems, finished product inspection systems, and more. This enhances its output, production capacity, and service life beyond other sand-making equipment. It is recognized as the premier stone crushing and sand-making machinery.
Easy Grain Size Adjustment
The double roll crusher allows for effortless adjustment of sand and gravel particle size.The working principle of the double-roll crusher is straightforward—essentially stone-on-stone crushing. Stones naturally falling within the chamber collide with stones accelerated and flung out by the impeller, achieving the crushing effect. When the accelerated stones collide with the naturally falling stones, a vortex is formed. During the return process, secondary crushing occurs, ensuring sufficient crushing force and frequency within the crushing chamber, resulting in higher product quality.
High Product Purity
The double-roll crusher eliminates the need for water to remove silt, thereby reducing costs. Unlike sand-making processes that require water for stone washing, this design not only achieves high product purity but also conserves water resources.
