Conveyor Idler Spacing Calculator
Carrying and return idler spacing from belt width and load.
Inputs
mm
t/hr
m/s
kg/m³
N
%
m
Results
Carrying idler spacing
2 m
Return idler spacing
3 m
Impact idler spacing1 m
Impact zone length1.6 m
Carrying idler sets51
Return idler sets35
Impact idler sets3
Total idler sets89
Actual belt sag1.6%
Transition distance0.56 m
Material load55.6 kg/m
How to Use This Calculator
- Enter the belt width and maximum material load in pounds per foot.
- Set material bulk density and belt sag percentage limit.
- Input belt tension and trough angle.
- Review the maximum allowable idler spacing for carrying and return strands.
- Use idler spacing to lay out the conveyor structure and calculate total idler count.
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