Roller Conveyor Design Calculator
Roller spacing and diameter from product weight and dimensions.
Inputs
lb
mm
mm
ft
m/s
mm
Results
Roller pitch
200 mm
≈ 2 credit cards
Rollers under product4
Load per roller6.25 kg
Total rollers needed51
Roller face length500 mm
Max products on conveyor11
Required slope (gravity)0%
Slope angle (gravity)0°
Drive motor power69 W
Conveyor speed0.5 m/s
Load Per Roller N61.31
Roller Rpm0
How to Use This Calculator
- Enter the package or unit load weight and dimensions.
- Set roller diameter and center-to-center roller spacing.
- Input conveyor length and incline angle (0 for gravity or flat).
- Review the number of rollers needed, load per roller, and required drive force.
- Use the roller load to select appropriate roller capacity and bearing rating.
What each input means
- Product weight
- Weight of a single product or carton.
- Product length (travel dir)
- Product dimension in the direction of travel.
- Product width (across rollers)
- Product dimension perpendicular to travel.
- Conveyor length
- Total roller conveyor section length.
- Conveyor speed
- Line speed (for driven conveyors).
- Roller diameter
- Standard: 38, 50, 60, 76, 89 mm.
- Accumulation mode
- 0 = transport (gaps), 1 = accumulation (back-to-back).
- Gravity conveyor
- 0 = powered/driven, 1 = gravity (slope required).
What each result means
- Roller pitch
- Center-to-center distance between adjacent rollers.
- Rollers under product
- Number of rollers supporting each product simultaneously.
- Load per roller
- Maximum load on a single roller.
- Total rollers needed
- Total number of rollers in the conveyor section.
- Roller face length
- Between-frame roller length (product width + clearance).
- Max products on conveyor
- Maximum number of products the conveyor can hold.
- Required slope (gravity)
- Slope percentage for gravity operation (0 if driven).
- Slope angle (gravity)
- Slope angle in degrees for gravity operation.
- Drive motor power
- Motor power for driven roller conveyor (0 if gravity).
- Conveyor speed
- Operating or approximate gravity speed.
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