Basalt Sand Making Equipment
Basalt sand making equipment is a VSI (vertical shaft impact) crusher for the sand stage, a cone crusher ahead of it and a washer plus a dewatering screen behind it, because basalt at Mohs 6-7 and 150-300 MPa wears impact parts faster than limestone does. Baichy publishes five VSI models, from the VSI-7611 at 120-180 t/h to the VSI-1145 at 490-600 t/h.
What Equipment Does a Basalt Sand Making Line Use?
A basalt sand making line uses four duties in sequence: reduction to the VSI feed limit, sand making, sizing, and washing with dewatering. Only the VSI makes sand; the other three decide whether it sells.
• Reduction — a cone crusher, published for hard rock at Mohs 6-7 and 150-300 MPa.
• Sand making — a VSI crusher, fed with hard material below 30-45 mm by model.
• Sizing — a YK circular vibrating screen; the 2YK1548 is published at 30-275 t/h with a 400 mm maximum feed size.
• Washing and dewatering — an XSD wheel washer or an XL screw washer, then a dewatering screen or sand recovery.
Basalt Sand Making Equipment: VSI and Washer Guide
Basalt Sand Making Machine: VSI Models and Hard-Material Feed Limits
The VSI sand making machine makes the sand: stone-on-stone crushing in the vortex chamber produces cubical manufactured sand with an adjustable fineness modulus. Baichy publishes a 0-50mm feed size, a 60-600 t/h capacity window and a 380v:50hz power source for the VSI series.
| Model | Cascade and Center Feeding (t/h) | Center Feeding (t/h) | Hard Material Feed (mm) | Rotation Speed (r/min) | Power of the Double Motors (kW) |
|---|---|---|---|---|---|
| VSI-7611 | 120–180 | 60–90 | <30 | 1700–1890 | 110–150 |
| VSI-8518 | 200–260 | 100–130 | <35 | 1520–1690 | 180–220 |
| VSI-9526 | 300–360 | 150–190 | <40 | 1360–1510 | 264–320 |
| VSI-1140 | 450–520 | 225–260 | <45 | 1180–1310 | 400–440 |
| VSI-1145 | 490–600 | 250–310 | <45 | 1180–1280 | 440–520 |
Why Does One VSI Pass Not Reach the 0-3 mm Fraction?
One VSI pass produces 0-5 mm sand in which the 0-3 mm fraction is only 30%-40%, so a line selling premium fine sand adds a compression stage after the VSI. The published two-stage route is VSI pre-crushing to 8 mm, then roller compression to 0-3 mm.
| Model | Roller Diameter (mm) | Roller Length (mm) | Feeding Size (mm) | Capacity (t/h) | Motor Power (kW) |
|---|---|---|---|---|---|
| 2PG-800×600 | 800 | 600 | ≤40 | 12–50 | 2×22 |
| 2PG-900×900 | 900 | 900 | ≤50 | 50–100 | 2×37 |
| 2PG-1200×1200 | 1200 | 1200 | ≤50 | 80–150 | 2×45 |
That route is published with needle-and-flake content of ≤5% against the GB/T 14684 limit of 15%, powder below 0.075 mm at 8%-12% and a fineness modulus of 2.3-2.8. Basalt at 250-300 MPa is published at a stable 60-75 t/h against 90-100 t/h for limestone at 80-120 MPa.
Does Basalt Manufactured Sand Need Washing and Dewatering?
Basalt manufactured sand needs washing when it is sold to concrete or dry-mix mortar plants, because the VSI leaves stone powder on the grain surface. Baichy publishes the wheel washer as taking stone powder content from 10-20% down to below 3-5%, and the screw washer as taking clay content from 15-20% to less than 0.8%.
| Model | Impeller Dia. (mm) | Feeding Size (mm) | Capacity (t/h) | Motor Power (kW) |
|---|---|---|---|---|
| XSD2610 | Φ2600 | ≤10 | 30–80 | 7.5 |
| XSD3016 | Φ3000 | ≤10 | 80–160 | 15 |
| XSD3420 | Φ3400 | ≤10 | 160–300 | 22–30 |
Behind the washer, the dewatering screen is published to bring surface moisture down from 20%-30% to 5%-8%, and with a hydrocyclone to recover over 95% of particles in the 0.075-2 mm range. A fine sand recovery machine covers the 0.075-0.5 mm cut that washer overflow carries at 10-18%, from 30-60 m³/h on the FX250 to 450-650 m³/h on the FX900.
What Do Published Basalt Sand Lines Look Like?
Baichy's 100-150 tph sand making line is published with a ZSW960x3800 feeder, a PE600x900 jaw crusher, a PYB1200 or CS110 cone crusher, a VSIX1150 sand making machine, a vibrating screen, a sand recycling machine and conveyors, on feed below 500 mm, basalt among its raw materials. Published output is fine sand at 0.25-0.35 mm, medium sand at 0.35-0.5 mm and coarse sand at 0.5 mm.
An 80-100 t/h combined crushing and sand line in the Dominican Republic is published as a PE500×750 jaw crusher, a VSI8518 crusher, a 2YK1548 screen and an XSD2160 washer, on basalt at Mohs 5-8, producing 0-5 mm manufactured sand with 5-20 mm and 20-40 mm aggregate.
FAQ: Basalt Sand Making Equipment
1. What is the main equipment for basalt sand making?
The main equipment for basalt sand making is a VSI (vertical shaft impact) crusher, published from the VSI-7611 at 120-180 t/h to the VSI-1145 at 490-600 t/h. The VSI-9526 takes hard material below 40 mm and produces 300-360 t/h in cascade and center feeding mode, or 150-190 t/h with center feeding alone.
2. Can basalt sand be made without a washing stage?
Yes, where the buyer accepts the stone powder the VSI leaves on the grain surface, because a dry line ships 0-5 mm sand straight from the screen. Washing is added when the concrete plant sets a powder limit, which the XSD wheel washer is published to meet by cutting powder to below 3-5%.
3. Why add a roller crusher after the VSI for basalt sand?
Because one VSI pass yields only 30%-40% of the 0-3 mm fraction, and the roller crusher adds a compression stage published to lift that above 60%. The published result is needle-and-flake content of ≤5% with a fineness modulus of 2.3-2.8.
4. How much capacity does basalt cost compared with limestone?
On a line rated 60-100 t/h, basalt at 250-300 MPa is published at a stable 60-75 t/h. Limestone at 80-120 MPa is published at 90-100 t/h on the same line.
5. Does basalt sand need a dewatering screen?
Yes on a wet line, because washed sand leaves the washer at 20%-30% surface moisture and cannot be stockpiled at that figure. A dewatering screen is published to bring it down to 5%-8%, and with a hydrocyclone to recover over 95% of the 0.075-2 mm particles the wash water carries.
Baichy Heavy Industry
Baichy Heavy Industry is a high-tech mining equipment company integrating R&D, manufacturing, sales, and after-sales service. Focusing on crushing, grinding, and mineral processing equipment, we provide professional solutions to our customers. We are ISO9001:2015 、certified, and our products include mobile crushing palnts, crawler crushing plant, construction waste crushing plants, jaw crushers, sand making machines, cone crushers, fine crushers, grinding mills, ball mills, etc., all with reliable performance to meet diverse project needs.
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