The transition from natural river sand to manufactured sand presents two major engineering hurdles for quarry operators: maintaining a stable Fineness Modulus (FM) and controlling the micro-fines (stone powder) content. Poorly shaped artificial sand with high flakiness increases the water demand in concrete mixing, which severely compromises the final compressive strength.
Our sand making systems focus on the "rock-on-rock" crushing principle. By utilizing the VSI6X series impactors, we strip away the sharp edges of the crushed rock, producing highly cubical grains. Coupled with precision air classification or hydro-cyclone washing systems, we keep the stone powder content strictly within the 3%-7% optimal range.
Adjustable FM Range
Optimal Fines Content
Increased Rotor Life
A precision-controlled circuit ensuring consistent particle gradation.
Raw materials, such as river stones or quarry blasts, are fed into the C6X Series Jaw Crusher. This stage handles the heavy-duty reduction, bringing the material down to a manageable size for the secondary stage while minimizing initial fines generation.
The material is processed by the HST / HPT Hydraulic Cone Crusher. This stage is critical for hard rock applications (like granite or basalt), reducing the rock to below 40mm to ensure the optimal feed size for the tertiary sand maker.
The core of the plant is the VSI6X Sand Making Machine. Utilizing a high-speed, four-opening impeller design, it forces rock-on-rock collisions. This action shatters the rock along natural fault lines, producing premium cubical sand with excellent gradation curves.
For wet processing, sand washing machines remove excess mud and micro-fines. For dry areas, dynamic air classifiers achieve the same precision without water. For projects requiring frequent relocation along riverbanks, the MK Semi-mobile Crusher & Screen integrates crushing and screening into one flexible modular unit.
Engineering robust layouts based on feed material and end-product specifications.
| Target Capacity | Raw Material | Processing Type | Core Equipment Configuration |
|---|---|---|---|
| 100 - 150 TPH | River Stone / Cobble | Wet Sand Making | HST100 Cone + VSI6X9026 + XSD Sand Washer |
| 200 - 300 TPH | Limestone (Medium) | Dry Sand Making | CI5X1520 Impactor + VSI6X1040 + Air Classifier |
| Flexible Riverside | Pebble / Gravel | Semi-Mobile | MK Semi-mobile Crusher & Screen station |
| 500 - 600 TPH | Granite (Hard) | Tower-like Dry System | HPT300 (x2) + VSI6X1250 (x2) + VU System |
The variable frequency drive on the VSI rotor allows operators to fine-tune the crushing intensity, making it easy to shift the Fineness Modulus (FM) between 2.2 and 3.0 based on client concrete formulas.
By employing the "rock-on-rock" crushing cavity in the VSI6X, the material forms a protective lining inside the chamber, drastically reducing the wear rate of the peripheral guard blocks.
For environmentally sensitive zones, our dry sand making systems eliminate the need for settling ponds and water consumption, delivering a clean operation with zero sludge footprint.
Our senior engineers will provide a custom 3D layout and detailed quote within 24 hours.
