COVER GRADES FOR HEAVY-DUTY USE
In more extreme conditions where heavy, sharp lump sizes and/or large drop heights are involved, having a carcass that has been specifically designed to dissipate impact and provide strong resistance against trapped objects that rip through the belt is very important. However, it is also essential to protect the carcass as much as possible with rubber covers that are best equipped to handle the impact, minimize rip & tear propagation and resist aggressive wear and the cutting and gouging caused by hard, sharp materials. For these kinds of demands, we recommend Dunlop cover grades RE and RS.
USING BREAKER PLIES TO INCREASE RIP RESISTANCE
For heavy-duty applications where ply belting is used we recommend the unique Dunlop UsFlex as the most effective solution. However, for steelcord belting, we recommend that breaker plies are used. These are embedded in the rubber covers during the manufacturing process, effectively creating a protective layer. The breaker plies are designed to significantly increase resistance against longitudinal ripping and perform two distinct functions. Firstly, they can help prevent the penetration of the belt by trapped objects and secondly they act as a barrier if something does actually penetrate between the steel cords and starts to rip the belt.
Download technical bulletin
In this link you will find detailed information about our range of breakers and their properties.
Dunlop Superfort ‘long life’ multi-ply conveyor belts have a long history of outstanding reliability and durability.
In some applications, especially primary and secondary crushers, even the strongest and heaviest conventional belts can be ripped or torn by large lumps of heavy, sharp objects, either falling from a height or becoming trapped. In extreme cases, belts can be destroyed within a matter of weeks or months.