Quarried Stone
Mobile handling for granite, limestone, basalt and other dimension and crushed stone at the quarry.
SANTO supplies mobile conveying, stacking and loading equipment engineered for quarried stone — from receiving and stockpiling to reclaim and load-out. The notes below cover the properties that matter, the problems that typically appear on site and the machines we recommend.
Why Mobile Conveying Suits Quarried Stone
Quarried stone is hard, dense rock (2.4–2.8 t/m³) in lumps up to several hundred millimeters, extremely abrasive. The grasshopper conveyor carries crushed stone away from the crusher without extra drives, extending reach as the face advances.
- Grasshopper conveyors extend reach without extra drives
- Feeder stackers meter blasted stone into the crusher
- Abrasion-resistant belts and impact beds resist wear
- Tracked mobility follows the advancing quarry face
- Radial stacking builds dense, saleable stone piles
Physical Properties and Handling Behaviour
The table below summarises the properties that decide belt specification, chute geometry and stacking method for this material. Values are typical ranges — actual figures vary with source and moisture content, so we test your sample before finalising a design.
| Property | Typical Value / Handling Impact |
|---|---|
| Bulk density | 2.4–2.8 t/m³ (hard, dense rock) |
| Particle size | Run-of-mine to 0–40 mm product |
| Abrasiveness | Very high — severe belt wear |
| Angle of repose | 36–42° for crushed stone |
| Handling note | Heavy-duty wear packs; controlled crusher feed |
Handling Challenges with Quarried Stone — and How SANTO Solves Them
Hard stone is brutally abrasive and arrives in surges that stall the crusher if fed unevenly. Fixed conveyors cannot follow the moving quarry face.
SANTO feeder stackers buffer the blast and meter a steady crusher feed, while grasshopper conveyors and tracked stackers use abrasion-resistant belts and impact beds to survive the wear and relocate with the face.
- Buffer blast surge with a feeder to protect the crusher
- Specify abrasion-resistant belt and impact beds
- Use tracked mobility to follow the quarry face
Recommended SANTO Equipment
For quarried stone we most often supply the machines listed below. Each can be configured with the belt width, boom length and drive power your tonnage requires, and each is available on wheeled, tracked or crawler chassis.
- Grasshopper Conveyor — configured for quarried stone duty
- Feeder Track Stacker — configured for quarried stone duty
- Tracked Stockpiler — configured for quarried stone duty
- Tracked Radial Stacker — configured for quarried stone duty
Typical Stockpiling and Loading Setups
A well-planned quarried stone yard keeps receiving, stacking and reclaiming on separate paths so trucks never queue behind a loader. In the most common layout, a mobile conveyor receives from the tipper or hopper and feeds a radial telescopic stacker that builds a layered stockpile, while a second conveyor reclaims to the loading point.
- Receiving: hopper or direct truck discharge into a mobile conveyor
- Stacking: radial or telescopic stacking to build layered, drainable stockpiles
- Reclaim: front-end loader feeding a mobile conveyor, or direct reclaim conveyor
- Load-out: conveyor to truck, wagon, barge or vessel hold
Frequently Asked Questions
How is crusher feed kept steady?
Feeder track stackers buffer blasted surge and meter a controlled flow so the crusher runs at full capacity.
What wear protection does stone need?
Abrasion-resistant belt covers, impact beds and heavy-duty idlers handle the very high wear from hard rock.
Can conveyors follow the quarry face?
Yes. Grasshopper and tracked units relocate with the advancing face, keeping haul distances short.
Need the right machine for your site?
Send us your material, required capacity and site layout. SANTO engineers will size the equipment and return a configuration proposal within 12 hours — no obligation.