Sand And Gravel Grading Machine
Product Description
Our Sand and Gravel Grading Machine is the heart of modern dry-process manufactured sand lines. Unlike traditional water washing-which wastes water and causes sludge pollution-this machine uses high-pressure airflow to precisely strip excess stone powder from sand. It ensures perfect grading with stone powder content strictly controlled within the 5% required for commercial concrete, making it the best investment for eco-friendly quarry owners.
In our 20,000㎡ facility, we use laser cutting and arc welding robots to build these machines. A client in Fujian facing pollution fines switched to our dry system, achieving zero wastewater discharge and selling the recovered stone powder as a byproduct.
Technical Specifications
|
Processing Capacity |
60 – 500 t/h |
|
Grading Accuracy |
Controllable stone powder content (e.g., < 5%) |
|
Method |
Dry airflow grading |
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Supporting Air Volume |
30,000 – 220,000 m³/h |
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Operating Speed |
100 – 350 r/min |
Applications
Grading for manufactured sand (granite, limestone, river pebble), tailings recovery, and road/bridge aggregate production.
Customization
Separation chamber geometry is customized based on rock type and moisture content. We support mixed-model orders.
Quality Control
Testing: No-load and load trial runs before shipment.
Logistics: Near Yancheng Airport and Huangsha Port for rapid sea, land, and air shipping.
FAQ
Q: Can it remove mud?
A: Combined with our high-energy breakup mechanism, it effectively strips and separates sticky clay/mud from sand surfaces.
Q: Do you offer on-site surveys?
A: Yes. Our technicians provide free on-site layout planning.
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