:: Belt Selection Criteria

CONVEYOR BELT SELECTION

CRITERIA OF BELT CARCASS SELECTION

ESSENTIAL CRITERIA

Belt Breaking Strength

The belt class required is that which has an operating tension greater than or equal to the calculated maximum unit tension T. (Table 12).

Load support

Select the lowest class which meets the Breaking strength requirement. As perTable 14, decide which load category best suits the load being conveyed i.e. A, B, C, D or E category load. The value obtained at the intersection of the belt specification row and the load category column gives the maximum width at which that belt specification can be used.

Number of plies for troughability

The maximum number of plies allowable, in order to ensure that the empty belt will conform to the contour of the troughing idlers, must be checked referring to Table 15. For a particular belt class the value shown at the intersection of the belt width column and troughing angle row, is the maximum number of plies that should be used.

Minimum pulley diameters

If the size of the pulleys is already determined, the belt construction provisionally selected from the previous considerations can be checked against the relevant pulley diameters for suitability. For a new installation, the pulley diameters should be equal to or larger than those given in Table 13 (It should be noted that, in this context, the diameters quoted refer to the minimum pulleys around which the particular belt construction will flex satisfactorily. The conveyor designer should also take into account the gearbox ratio and required belt speed when selecting the drive pulley diameter.)

Required Covers Thickness

The appropriate thickness of cover essential to provide protection to the belt carcass from material impact and wear must be determined by consideration of the size and density of the material to be handled. (Table 19).