This series of next-generation sand-making equipment integrates advanced “rock-on-rock” and “rock-on-iron” dual-mode crushing technologies, combining crushing, shaping, sand making, and screening/pre-processing into a single, multifunctional unit. It is designed to process a wide range of mineral materials—such as river pebbles, limestone, basalt, quartz, and granite—and is suitable for raw materials of varying hardness (soft, medium, and hard).

The rock sand making machine overcomes common industry pain points associated with traditional sand-making machinery, such as poor particle shape, high energy consumption, excessive wear, and heavy dust emissions. By optimizing the vortex crushing chamber structure, high-speed rotor drive system, and intelligent feed control technology, it transforms 30–60mm raw stone into high-quality manufactured sand characterized by uniform particle size, optimal gradation, and rounded particle shapes. The finished product fully complies with national standards for materials used in construction, road building, and hydraulic engineering projects.

Sandreck’s rock sand making equipment offers processing capacities ranging from 60 to 520 t/h, making it suitable for everything from small-scale operations to large-scale aggregate production lines. They also support the recycling and resource recovery of solid waste materials, such as mine tailings, construction debris, and crushed stone scraps. Delivering high output and efficiency alongside energy savings, environmental friendliness, and cost-effective performance, these machines are the ideal core equipment for modern aggregate production.

Rock Sand Making Machine Working Principle

Material enters the sand-making machine through the feed hopper and is split into two streams by the distributor.

One stream enters the high-speed rotating impeller from the center of the distributor, where it undergoes rapid acceleration—reaching speeds hundreds of times that of gravity—before being ejected at 60–70 m/s through three evenly spaced impeller channels.

The material first collides with the other stream, which has fallen freely around the distributor. Together, they impact the material lining within the surrounding vortex crushing chamber. The material rebounds toward the top of the crushing chamber before deflecting downward, colliding with the material being ejected from the impeller channels to form a continuous curtain of material.

In this way, the material undergoes multiple impacts, friction, and grinding actions within the vortex crushing chamber. Once crushed to the required specifications, the material is discharged through the bottom outlet.

Features of Rock Sand Making Equipment

1. Dual-Mode Crushing for Exceptional Versatility

Features a unique, switchable crushing mechanism—”rock-on-rock” vs. “rock-on-iron.” Easily adapt to materials of varying hardness and characteristics with a single click. The “rock-on-rock” mode is ideal for high-hardness materials like basalt and granite, minimizing equipment wear. The “rock-on-iron” mode maximizes crushing capacity for softer materials such as limestone and weathered rock. A single machine meets diverse production needs without the need for equipment changes.

2. High-Quality Finished Particle Shape

Utilizing a multi-stage, three-dimensional impact and grinding shaping process, the rock sand making machine produces manufactured sand with rounded, uniform particles. The output contains minimal needle-like or flat particles, fully complying with national standards for construction sand and road aggregates.

3. Durable and Wear-Resistant Structure

Core wear parts are crafted from highly wear-resistant alloys. Thickened impellers, impact plates, and liners offer superior impact and wear resistance, significantly extending the sand-making equipment’s service life.

4. Eco-Friendly Operation

The enclosed crushing chamber, combined with a negative-pressure dust suppression system, effectively prevents dust leakage. Operations are quiet, with no exhaust gas or waste residue emissions.

Rock Sand Making Machine Applications

1. Artificial sand production from river pebbles, quarried rock (limestone, granite, basalt, diabase, andesite, etc.), mine tailings, and stone chips.
2. Production of construction aggregates, road surfacing materials, base course materials, and aggregates for asphalt and cement concrete.
3. Manufactured sand production and stone shaping for engineering projects, including water conservancy and hydropower facilities, high-grade highways, expressways, high-speed railways, dedicated passenger lines, bridges, airport runways, municipal works, and high-rise buildings.
4. Fine crushing processes prior to grinding in the mining sector, as well as material crushing for industries such as construction materials, metallurgy, chemicals, mining, refractories, cement, and abrasives.

Technical Parameters of Rock Sand Making Equipment