10
Project planning
MOVIMOT® advanced
Operating Instructions – MOVIMOT
®
advanced
223
10.3.2
Drive selection using the example of a roller conveyor
Description of the application
This chapter illustrates the drive unit selection using the example of a roller conveyor
for transporting wooden pallets with the following specifications:
Load weight
m
2,500 kg
Conveying speed
v
22 m/min
Positioning speed
v
5 m/min
Acceleration
a
0.4 m/s
2
Number of rollers
a
8
Efficiency of the application with rollers
η
app
0.7
Roller diameter
D
140 mm
Lever arm of the rolling friction (wood/steel)
f
1.2
Bearing diameter
d
28 mm
Bearing friction value
µ
bearing
0.005
Switching frequency
c
6 times/hour
Maximum external force at standstill
F
ext
800 N
The following figure shows a schematic illustration:
32418277131
25891936/EN – 05/2020