HDPE continues to replace steel

Traditional steel mesh panels – used in the manufacture of under conveyor guards and found on conveying systems at many mining and bulk materials handling sites – are likely to become another victim of the growing trend to be replaced by HDPE (high-density polyethylene).

HDPE is a far more sustainable, recyclable and safer alternative to steel.

The company behind the development and refinement of the now well-known HDPE conveyor guards panels it released back in 2019, has recently announced the launch of its new under conveyor guard (UCG), which is also made from HDPE instead of steel.

What does the UCG do?

The purpose of the UCG is to stop and contain objects and spillage falling from a conveyor belt through the conveyor structure onto the ground below. This can pose a potential hazard to personnel, wildlife and/or equipment.

Typically, a UCG is installed to the conveyor structure beneath the return belt, in sections where fugitive material is prone to spillage.

It is often installed directly under the return rollers to catch any carry-back material or the roller itself.

About the HDPE panels

DYNA Engineering panels are made from 100% Australian recycled and recyclable HDPE plastic and can capture any objects larger than the slot size, preventing them from falling to the ground.

The mesh is designed to allow fines/small material to fall through, as in most circumstances this does not pose a risk of injury, and it can be washed down during maintenance

Support Bar

The support bar is of steel construction and is designed to be retrofitted (bolted) around the conveyor truss or other structures with little or no modification to the existing structure.

The HDPE panel simply slides into 2 support bars between the panel retaining frame and panel mounting channel.

The support bar is hot dip galvanised and has a service life of 15 years. Its mounting assembly is designed to suit many different conveyor truss and stringer structures, including SHS, RHS, angle iron and I beams.

DYNA Engineering is able to manufacture customised solutions to suit other structures as required.

Specifically Designed Capability

“These HDPE panels and support bars are designed to suit the application. Our basis of design will consider the expected impact forces and deadloads which will be applied to the system, to ensure that we deliver a product that meets the customer’s specific situation” said General Manager, Thomas Greaves.

“The HDPE panel is engineered so it can be removed from the support system, allowing access to the guarded area without having to remove the support bar from the structure. This ensures easy access for cleaning and equipment change-outs” he added.

Easy Installation

DYNA Engineering’s UCG is designed to be installed by two people with simple tools. The panels have an estimated weight of 6kg-15kg, depending on the conveyor width and panel size.

Each component of the support bar has been designed to be minimal in weight. The support bar is bolted around the existing conveyor structure with two fixed bolts and nuts at each end.

Long Service Life

The HDPE panels are 10mm thick, UV-rated HDPE with an estimated service life of 10-15 years. The panels can be made in any colour although black is the company’s recommendation as it is the most resistant colour to UV wear.

They will not rust, corrode or require painting, reducing high maintenance costs and improving safety compared to traditional steel mesh.

Short Production Lead

Time DYNA Engineering’s UCG’s are manufactured in Perth, Western Australia. While lead times vary depending on the scope of the work, typically, a replacement panel for an existing installation can be manufactured in as little as several days.

For further information contact: Thomas Greaves, General Manager, DYNA Engineering, 0409 996 012, thomas@dynaeng.com.au

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