BELT CONVEYORS - DESIGN, OPERATION AND
2012-3-20 · Belt tension calculation can be kept straightforward, provided the designer starts by considering the minimum belt tensions, at both the drive and tail pulleys, by using the following formulae :-T min = 4,2x9,81/1000 si(Wb+Wm) kN. Where 4,2 = Factor based on a 3% belt sag. Si = Idler spacing,m. and. Tslack side = Teffective / e -1