Hello Designer,

I need to know if my calculation is correct or not for my belt conveyor used to transport tobacco product.

Belt length = 34m
Belt width = 1000 mm
load due to belt =1.8kg/m2
idler spacing = 0.51 m
load due to convoyed material is 15 Kg/m ...
H= 1.2m
i used this formula:
Tb = 1.37*f*L*g*[2*mi+ (2*mb + mm)*cos (δ)] + (H*g*mm)

Tb is in Newton.

f = Coefficient of friction
L = Conveyor length in meters. Conveyor length is approximately half of the total belt length. =34 m
g = Acceleration due to gravity = 9.81 m/sec2
mi = Load due to the idlers in Kg/m. = 117.6
mb = Load due to belt in Kg/m. =1.8 kg/m
mm = Load due to the conveyed materials in Kg/m. = 15 kg/m
δ = Inclination angle of the conveyor in Degree. zero
H = vertical height of the conveyor in meters. 1.2 m

  • Load due to idlers (mi): This can be calculated as below:


mi = (mass of a set of idlers) / (idlers spacing)