Belt widths are stated in millimeters (mm), (also in meters and preferred widths) and are international standard.
Standard Widths in mm:
300 400 500 650 800 1000
1200 1400 1600 1800 2000 2200
Other belt widths are available on request.
Permitted width tolerances according to international standards
Belt width 300 - 500 mm + 5 mm.
Belt width 650 or wider + 1 %
The number of plies in the carcass indicates the figure for the nominal tensile strength.
Standard values for the nominal tensile strength of each individual ply:
63 80 100 125 160 200
250 315 400 500 630 (N/mm)
The nominal strength of the belt carcass is indicated by the strength of each ply multiplied by the number of plies rounded off to the nearest nominal tensile strength. The number of plies is left out in belt types, where the carcass is determined by the type description; for example, two plies and three plies.
The thickness of top and bottom cover is stated in millimeters (mm).
Permitted tolerances of the cover thickness according to international standards:
Belt thickness up to and including 4 mm: - 0.2 mm.
Belt thickness over 4 mm: - 5%
The total belt thickness is the sum of top and bottom covers plus carcass thickness.
Permitted tolerances of the total belt thickness according to international standards:
Belt thickness up to and including 10 mm: + 1 mm
Belt thickness over 10 mm: + 10%
The belt length is usually stated in meters (m), either open or endless.
An open belt length means the circumference of an installation plus the extra length for splicing. The endless belt length is the inner circumference of the spliced belt.
Cement work: quarries, open storage and reclamation, preblending.
Ports: ship loading or unloading installations.
Quarries: primary and secondary conveyors.
Public work: iron ire handling, open storage and reclamation, sinter plant, blast furnace feed, slag recovery.
Electricity generation: preblending, feed to hoppers, open storage and reclamation.
Sugar mill: log handling of logs.
Coal mines: tipping, refilling, washing.
Foundries: Knockout sand.
Cement Plants: Clinker
Steelwork: hot sinter
Lime kilns: kiln discharge
Glass works: oil-impregnated, glass waste.
Fertilizer plants: complex treated fertilizers.