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Our tailored dust suppression systems and mist cannons prevent and control airborne dust ensuring a safer, healthier work environment.

Dust Control Solutions for Quarrying Operations

A key factor that can impact on the viability and growth of quarry industries is adequate dust suppression. The national exposure standards for atmospheric airborne contaminants placed on workplace, health and safety require that owners and managers must provide a safe and healthy environment for all employees. In addition to health and safety requirements, residential developments are creeping closer to quarry operations, increasing pressure on putting in place effective and efficient dust control measures. 

Solving dust problems on quarries and aggregate processing plants is commonly reliant on using alternate dust collection methods. Dust disposal, bag maintenance and freightage create down-time and lower productivity. Water guns, sprinklers and low pressure water sprays over-wet dusty areas and processing equipment, expanding the problem. The benefit for dust suppression using these methods is limited as they are inefficient, and consume high volumes of water.  

Dust suppression using water, when applied correctly, has many advantages and far outweigh traditional methods and the associated problems they bring. 

CoolMist Systems Australia offers dust control solutions with misting and fogging systems. AJet® Mist Cannons, our large scale dust suppression equipment (also known as fog cannons), are also available in mobile dust suppression units. These dust suppression systems can be adapted to suit any size building, processing equipment or outdoor operations ensuring airborne and fugitive dust particles are dramatically reduced on your site and supporting a healthy work environment for all employees.

Typically, quarry dust particle sizes formed during quarrying processes range from less than 1 micron to over 100 microns. Therefore understanding the particle size, type and quantity of the dust is vital in effective system design.

CooMist Systems Australia’s innovative dust suppression mist systems and AJet® Mist Cannons use far less water than the common spray systems and suppress 50-90% of dust generated. 

All our systems are designed to emit high volume mist / fog using an extremely low volume of water. Droplet size is optimised to bind with dust particles, trapping them and cleansing the air. 

Open spaces present additional challenges for dust suppression and this is where our AJet® Mist Cannon  comes to the fore. Also referred to as fog cannons, these robust and versatile units combine a powerful fan to disperse atomised mist. 

Dust Suppression Solutions – Tailored for your site

Working with you we will tailor an effective dust mitigating system to your unique site rather than a one size fits all approach. We have a large range of high pressure misting pumps to give you precise control over each area, delivering as much, or as little fog as is required for your operation. 

Our services include supply, installation and commissioning both locally and interstate to help you meet environmental air quality standards and protect workers' health.

Dust Suppression FAQs


  • Improve Health & Safety 
    • Reduce skin and eye irritation
    • Increase workplace visibility
    • Lower the risk of respiratory illness by reducing dust levels 
    • Clean, cool and condition the air providing an improved work environment 
    • Lower the risk of dust explosion and fire
  • Environmentally Sustainable
    • Avoid dust-off by controlling dust particles at the source and on site 
    • Lower contamination in nearby ecosystems 
    • Lessen the nuisance and impact on neighbouring properties 
    • Low volume water mist is more efficient and avoids oversaturation, run-off and other residual problems common with traditional water spray systems
    • Surrounding areas remain dry with water efficient dust suppression 
    • Meet Australian environmental regulations
  • Lower Operational Costs
    • Power consumed is only a fraction of the cost when compared to conventional systems
    • Reduce clean-up and dust disposal costs  
    • Lower litigation risk and ease regulatory body concerns such as the potential threat of shutdown and unnecessary fines 
    • Lower maintenance and repair costs through dust control, with less wear and tear on machinery
    • No expensive consumable chemicals
  • Productivity 
    • Increase equipment performance and reliability 
    • Prevent unscheduled production breakdowns due to dust accumulation and ingression on equipment and machinery  
    • Processed material quality is not compromised by avoiding chemical additives and over-saturation 
    • Boost morale, and provide a cooler and more comfortable workplace for employees on-site 
    • Increase performance and reliability   
    • Prevent unscheduled shutdowns from equipment failure due to dust and clogging
  • Tailored systems   
    • Target specific dust points and prevent dust emission from the source 
    • High concentration of micro-fine fog droplets provides efficient dust suppression 
    • Avoid water pooling by using atomised mist. Plant, machinery, floor area and process material remain dry 
    • Personnel can work in the fog without becoming wet 
    • Proven capability to suppress aero-dispersed dust from 50% - 92%  
    • Catered to large, small, or whole of site solutions 


Dust consists of tiny particles of dry, solid matter. Industrial dust is a by-product of activities such as earthworks, excavation, blasting, transportation, product processing, manufacturing and waste and recycling processes. Dry climatic conditions and wind can intensify dust generation.

Dust has a significant health and environmental impact associated within many areas including mining, construction, demolition, manufacturing, and agriculture industries.

Many operators are challenged daily as dust particles pose serious health issues, increased maintenance cost and down times, loss of material, product quality and reduced productivity and regulatory compliance.


Without proper dust control, your workers are exposed to harmful dust, particulates, and contaminants in the air. Airborne dust particles cause breathing difficulties, skin and eye irritation, and serious respiratory diseases. Prolonged exposure to these dust particles can significantly affect the health and well-being of your workforce.

Dust can damage and interfere with the functionality of equipment like conveyors and their components, plant and equipment, motors, and machinery. Constant exposure to dust can result in frequent and unscheduled shutdowns and increasing clean-up costs.

When dust escapes beyond site boundaries, it can have a negative impact on near-by properties and eco-systems.

By having proper dust control measures onsite, you can improve operations with continuous productivity, a safer, healthier, and cleaner workplace for employees and meet OH&S and environmental obligations.


CoolMist Systems Australia supplies dust suppression systems for indoor and outdoor applications. Finding the right dust suppression solution for your workplace may be as simple as a fogging system installed at the dust source or you may require a larger system installed to run a number of zones.

Static line misting systems use high pressure (70bar, 1,000 psi) pumps to atomise water into microscopic droplets to limit the dispersion of fine dust particles. A network of strategically placed misting nozzles emit the fine spray of micron-sized water droplets that absorb the dust particles in the air. The increased weight of the dust particles causes them to fall back down to the ground or to the process material and remain there, leaving the air dust-free. Utilising this method of dust suppression can greatly inhibit dust from circulating throughout the entire facility.

Additionally, mist fans fixed to walls or 360 mist fans suspended from the ceiling can be considered as effective dust suppression tools.

Mist cannons - also recognised as fog cannons, dust cannons, fog makers, spray cannons - are used for dust suppression in many work processes in quarry operations, mine sites, demolition and construction sites.

AJet® Mist Cannons propel atomised mist with a high velocity fan over large areas. CoolMist® mist cannons throw fog from 15 to 150 metres, which makes them a powerful and effective solution for dust control. Water flow rates can be adjusted to regulate the volume of water discharged from the mist cannon to control both surface dust and airborne dust without saturation problems. The cannons can be setup in a fixed or mobile position depending on your specific needs.

A professionally designed and installed dust suppression misting system can remove dust particles from 0.1 to 1000 microns reducing PM10 dust levels and assist compliance with EPA dust control standards. Our team will assess the site and dust intensity, matching water droplet size to corresponding dust particle size. Based on your requirements we will tailor a dust control system designed to work effectively and efficiently.


To maximise the potential of dust capture by water dust suppression systems, the water droplets need to be similar in size to that of the dust particles. Water droplets that are too large deflect the dust particle away leaving the dust air borne. The mist density (fog cloud) also needs to be greater than the concentrations of dust in the air so that all the dust can be captured.

Our misting systems and mist cannons operate on the principle of binding dust using tiny water droplets similar in size to the dust particles. CoolMist® misting systems and mist cannons effectively break down PM10 and smaller suspended dust particles by using water droplets similar in size to the dust particles.

Tiny, atomised water droplets, 10 microns, form a dense fog and trap the dust particles increasing their weight which causes them to fall from the air. Particles from 0.1 to 1000 microns have little chance to escape and are quickly arrested, removing dust from the air.

The low volume of water emitted from our systems avoids residual problems such as pooling or oversaturation and achieves dust suppression with maximum efficiency at sustainable water usage rates.

Schedule a consultation with us now

We love working with businesses to solve their cooling, humidification and dust suppressions problems.  Contact us about organising a consultation.