Rock Dusters

Home » Products » Rock Dusters

Brain stonedusters reduce the risk of explosion.

Rock dusters and stonedusters discharge stone dust to help underground mining companies meet their stonedusting program requirements.

Brain Industries’ stone dusters and rock dusters use our patented Mudskipper© jet pumps to deliver superior pumping power with minimal maintenance.

For our partner, Strata Worldwide, Brain designs, manufactures, and installs bulk stone dust delivery systems for underground coal mines, including 100-tonne to 200 tonne above ground silos for bulk storage. 

We also deliver 3-tonne, 6-tonne, and 20-tonne dust to pit-bottom pressure-pods as well as  500kg to 1500kg dilute-phase tailgate dusting covering up to 4,000 metres (4 kms).

Hand-Held Spear Duster

A small readily portable stone duster that can be “speared” into a bulk bag or drum of stone dust and deliver it fast thanks to its properly engineered jet-pump.

Designed for 25NB air supply, our Spear Duster will continuously discharge stone dust 30 metres or more via a 38NB stone dust hose delivering with good density.

The Brain Industries Spear-Duster has no moving parts and no electrics. It is intrinsically safe and constructed aluminium free to meet mining regulations.

brain industries spear duster

Mini-Stonedusters

The Brain Industries Mini-Stoneduster is a small readily portable rock duster that accepts a full bag of dust and delivers it fast thanks to its properly engineered jet-pump.

Designed for 25NB air supply, it will continuously discharge stone dust 30 metres or more via a 38NB stone dust hose delivering with good density.

The Brain Industries Mini-Duster has no moving parts.

Brain Industries mini duster

Maxi-Stonedusters

Designed for 25NB air supply, the Brain Industries Maxi-Stoneduster will continuously discharge dust 100 metres or more via a 50NB stonedust hose.

Our Maxi-Stoneduster has no moving parts and no electrics. It is intrinsically safe and constructed aluminium free to meet mining regulations.

The hopper has in excess of 15 bags capacity with a lid secured by chain to keep the contents dry.

The unit has a 25NB claw coupler for connection of the air supply hose and the air throughput can be controlled by regulating the air supply
ball valve.

Fluidising points in the hopper can be adjusted by regulating the fluidising air control valve.

Dust induction volume can be adjusted by rotating the stonedust volume control cone in the bottom of the hopper.

A 50NB brass male camlock is fitted for connection of the FRAS stonedust delivery hose which can be supplied with the unit if required.

Brain Industries maxi rock duster and stone duster

Maxi-Stoneduster with Set & Forget Function

The Maxi-duster with Set & Forget function is a standard Brain “Maxi-duster” that has all the same design and operating benefits but with the addition of a simple but ultra reliable factory set timer mechanism.

The hopper is pre-filled with approximately 15 bags of stonedust and the 2” delivery hose positioned as required. It can be placed on the floor or passed through a stopping.

When the unit is activated it will steadily discharge the hopper contents over a 10-25 minute period before automatically shutting down. This steady metering of stonedust at high density into the ventilation air stream has been proven to achieve excellent coverage over long distances.

A 50NB stainless steel male camlock is fitted for connection of the FRAS  stonedust delivery hose which can be supplied with the unit if required.

brain industries set and forget maxi duster