Sand Making Machines
VSI Sand Making Machine
VSI vertical shaft impact sand making machine producing high-quality manufactured sand and well-shaped aggregates for concrete, highways, railways and dams.
Sand Making Machines
VSI vertical shaft impact crushers produce high-quality manufactured sand and well-shaped aggregates for concrete, highways, railways and hydro-power projects.
Selection Guide
How to Choose the Right Sand Making Machines
VSI (vertical shaft impact) sand makers turn surplus aggregate into high-quality manufactured sand and improve the shape of coarse aggregate. Selection depends on feed size and moisture, throughput target and the concrete or asphalt spec you need to meet.
Feed size and crushing mode
VSIs accept feed up to about 50 mm in rock-on-rock (cascade) mode and up to 80 mm with anvil/rock-on-steel configuration. Pre-screen out fines above the required sand size to maximize efficiency.
Capacity planning
VSI output is typically 30-400 t/h depending on rotor size and peripheral speed. Sand ratio (0-5 mm yield) can reach 30-40% when feed is well graded; tell us your required sand tonnage and we size the machine.
Moisture and dust control
Keep feed moisture below about 2-3%; wet feed reduces throughput and can build up inside the rotor. Add dust collection or water spray at transfer points if your plant is in a populated area.
Wear parts
Rotor tips, anvils, distributor plates and wear liners are the consumables. High-chrome and composite materials extend life on abrasive feed. DC supplies matching wear parts for its VSI models.
Finished spec
Manufactured sand for concrete should have controlled gradation, low flakiness and low dust (filler) content. A VSI plus washing screen (DXS sand washer) gives a clean, spec-ready product.
FAQ
Frequently Asked Questions
What is the difference between VSI and traditional sand making?
VSIs crush stone-on-stone, giving cubical, well-graded sand with fewer fines; traditional hammer mills produce more flat particles and dust.
What feed size does a VSI need?
Feed is typically 0-50 mm (up to 80 mm in rock-on-steel). Larger feed must be pre-crushed by a jaw/cone or screened first.
How much manufactured sand can a VSI produce?
With well-graded feed, a VSI commonly converts 30-40% of feed into 0-5 mm sand; the rest is returned or used as coarse aggregate.
Do I need a sand washer after the VSI?
If your spec limits dust/fines or clay, yes - a DXS or bucket wheel sand washer removes ultra-fines and improves the sand for concrete.
Get a Quote for Sand Making Machines
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