Fire Resistant Anti Static (FRAS) Conveyor Belts

Major mining losses from the last few years have shown that conveyor fires can cause significant damage and have a large impact to clients' supply chains. These losses are significant and over the past seven years the industry has seen individual losses as high as USD$125m1.  Sites must prioritize the protection of critical conveyors as only a short outage can generate very large Business Interruption impacts.

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Fire Resistant Anti Static (FRAS) conveyors belts can help reduce this risk but it is not the only means of protection.

Hazards when working with conveyor belts

• Fire: Conveyors are designed to transport material meaning they can also transport a flame. As smoke detection can have a slower response time when air velocity is increased, a fire can be transported a considerable distance by a conveyor belt before being detected. Intervention time is key to controlling conveyor fires as high heat can lead to structural collapse.

• Toxic smoke: Burning rubber from an ignited conveyor belt can produce large amounts of black toxic smoke which can be particularly hazardous  in underground environments, making it difficult for people to evacuate the mine and for rescue efforts.

• Business interruption: Loss of a critical conveyor can have a large impact on business due to the replacement time to rebuild structures.

What are Fire Resistant Anti Static (FRAS) conveyors belts?

Fire Resistant Anti Static (FRAS) conveyor belts are engineered so that the top and bottom covers of the conveyor belt meet local fire retardancy standards. This means these belts are difficult to ignite and should never be the cause of a fire. Additionally, if ignited by an external fire source, they should minimize the propagation of the fire. These conveyor belts are also Anti Static, meaning they provide electrical resistance to avoid the build-up of static electricity.

FRAS conveyors belts allow more time for an existing protection system (fire detection / fire sprinklers) to respond. Flame spread can be reduced therefore increasing the effectiveness of the protection system. While FRAS belting can reduce fire exposure, it should not be relied on as the sole means of fire protection.

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For several applications  - especially for those ones in electronical environments – electrical friction s is a non-desirable phenomenon. Antistatic belts are the solution for this issue.

Standard available as T5 PAZ/PAR AS where the polyamide Nylon fabric on the tooth- and backside is antistatic (color: anthracite).

Types T5, T10, AT5 and AT10 are also available as an antistatic PU belt (color: black).

If you want to learn more, please visit our website Antistatic Process Belts.