Fixed Dust Collectors Series

Key Features of the Grydale Fixed Dust Collectors

Grydale are an Australian Original Equipment Manufacturer (OEM) of a range of industrial dust collection equipment.

Our team have over 15 years’ experience designing and manufacturing industrial dust collectors. We focus on adding value through a total service offering, providing ventilation design, manufacture, implementation, ongoing project management and onsite maintenance and technical support.

Our fixed unit dust collectors offer a long term and cost-effective solution to dust and fume control and are designed to maintain compliance with workplace health and safety regulations.

Sizing a Dust Collector.

Custom designed units to meet application and site requirements.

Our fixed unit dust collectors are all designed by our in-house engineering team to meet specific applications and site conditions.

A combination of airflow, air velocity, pressure, resistance and air-to-cloth ratios determines the appropriate size and ducting configuration. Incorrect sizing can result in high emissions, lowered productivity, reduced filter life and a hazardous/unsafe working environment.

Airflow. How much air the system needs to move.

In general terms, the larger the space where extraction is required, or the greater the number of dust collection pick up points, the greater the airflow required.
Variable Speed Drives (VSD) or Variable Frequency Drives (VFD) can be used to adjust the airflow when there are fluctuating site conditions. This can help to reduce power consumption.

Air Velocity. The speed the air needs to move.

For dust to travel suspended in air it must travel at or above the minimum conveying velocity for that product. There are also risks such as explosion, toxicity and abrasion associated with certain dust types to be taken into account.

Low air velocity can cause dust build up within ducting and lead to poor dust capture and fires. This can also create an increased explosion hazard. High air velocity can cause premature wear in the duct work by means of abrasion or can break up delicate conveyed products such as food and pharmaceuticals.

Air-to-Cloth Ratio. Volumetric flow rate of air through a dust collector’s intake divided by the total cloth area (m²) in the filters.

For dust collectors to capture dust from the air-stream, they must have a sufficient number of filters. Maintaining an adequate air to cloth ratio enables the dust collector to operate at peak efficiency. Dust types and the amount of dust per cubic meter are all determining factors.

Pressure and Resistance. >Pressure and resistance across the dust collection system.

The fan used in the dust collector must supply enough suction to overcome duct and fixed pressure losses from the collection point(s), through the dust collector and filters before exhausting clean air out of the system.

Resistance to airflow is created by the filters and ducting along with the dust being transported.

Key Projects

Incitec Pivot Ltd.

Gibson Island (QLD) – Manufacturing Site and Kooragang Island, Newcastle (NSW) – Primary Distribution Centre .

One of Australia’s largest suppliers of bulk and packaged fertiliser products. Our dust collection systems are being used at their production, bagging and bulk loading facilities to both manage dust and recover product. Recovering product makes the dust collection systems cost neutral.

Northern Stevedoring Services (NSS)

Port of Townsville (QLD) – Bulk Loading Shed

Grydale introduced innovative dust control measures at the bulk storage shed on the Port of Townsville where EPA introduced an extremely challenging requirement of not emitting any visible dust into the atmosphere from the facility. To achieve this, Grydale placed two large storage sheds under negative pressure preventing any visible dust escaping the facility.


McArthur River Zinc Mine (NT) – Stockpiling Facility and Crushing Plant

Glencore is one of the world’s largest global diversified natural resource companies. We designed, manufactured and installed two dust collection systems at the McArthur River Mine site to manage dust created at their stockpiling facility and crushing plant operations.

Rockhampton Powdercoating

Rockhampton (QLD) – Abrasive Blast Room

Rockhampton Powdercoating refresh old metal items using sandblasting and powdercoating services. We designed, manufactured and installed a steel blast
room equipped with a media recovery system and suitable dust collection system. This allowed the client to bring their blasting operations in-house controlling the quality of the end powdercoated product.

Bencee Les-Wilson

Moorooka (QLD) – Woodworking Workshop

Bencee Les-Wilson are a one stop shop for commercial, office and retail construction and fit outs. We designed, manufactured and installed a dust collection system with associated duct work to a woodworking workshop where Dust is extracted from CNC routers, multiple bandsaws, thicknessers and table saws. The dust collector is fully quipped with an automated control systems allowing for ease of maintenance and troubleshooting.

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