Troubleshooting Belt Cleaners

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Selection of the best Wearing Material

Within the mining industry, there are several different materials used as cleaning blades; the most well known and favourable blades being made from polyurethane or tungsten tipped.

Tungsten is a commonly used material in areas requiring extreme abrasion resistance, such as mines and quarries with rocks containing higher silica contents or sands. With its hardness of 1200 BHN, tungsten is substantially harder than mild steel (120 BHN), and capable of withstanding particularly abrasive environments.

Due to this higher increased comparative BHN value, tungsten tipped blades on primary belt cleaners should not be installed on belts with mechanical fasteners, as the tungsten may destroy the join, unless it has been properly protected and purposely tailored to run with Tungsten tips.

Polyurethane is a widely used material for belt cleaning applications. Due to its lower durometer, the blade is less likely to cause damage to a splice or belt in already poor condition and, therefore, is the preferred medium when used on belts joined by mechanical fasteners and cold splices.

Overland Pipe Conveyor

Conveyor Belts: Save Energy by Minimising Belt Rolling Resistance

A blade made from polyurethane has a strong resistance to abrasion as well as a low coefficient of friction. This creates reduced drag on the conveyor and little product to hang-up, therefore providing an efficient cleaning system.

Being relatively lightweight, polyurethane blades are easier to install (particularly in areas of limited accessibility) with less manual handling requirements and are a contributing factor to its popular usage.

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