granite crusher that round off the stone

If you’re looking for a granite crusher that produces rounded stones (similar to river rocks or pebbles), you’ll need a specific type of crushing equipment designed to shape and round off the stone. Here are some options:

1. Cone Crusher (for Medium-to-Fine Rounded Output)
– How it Works: Uses a rotating mantle inside a concave bowl to crush granite into smaller, somewhat rounded pieces.
– Best For: Producing aggregate with smoother edges compared to jaw crushers.
– Limitation: May not fully round stones like a pebble; better for slightly rounded aggregates.

2. Vertical Shaft Impact (VSI) Crusher (Best for Rounding Stones)
– How it Works: Throws granite against hard surfaces or other rocks at high speed, naturally rounding the stone through repeated impacts.
– Best For: Producing well-rounded, pebble-like stones (similar to natural river rock).
– Example Models:
– Sandvik CV200 series
– Metso Barmac B-Series
– Terex Canica VSI

3. High-Pressure Grinding Roller (HPGR)
– How it Works: Compresses granite between two rollers, producing more rounded fragments.
– Best For: Crushing with minimal sharp edges, though not as rounded as VSI output.

4. Pebble Mill / Tumbling Crusher
– How it Works: Uses a rotating drum with abrasive materials to naturally round off crushed granite over time. – Best For: Small-scale production of decorative rounded stones.

Post-Crushing Rounding Methods
If the crusher alone doesn’t achieve the desired roundness, consider:
– Tumbling Machines (for polishing and further rounding).
– Washing & Screening (to remove sharp fragments).

Final Recommendation
For the best-rounded granite output, a VSI crusher is the most effective choice. If you need perfectly smooth pebbles, combine crushing with a tumbling process.

Would you like recommendations based on production capacity or specific stone sizes?