Engineering
Conveyor Speed Calculator — Belt Speed from Motor RPM
Free online conveyor speed calculator for dairy packaging and filling lines. Calculate belt speed from motor RPM, gear ratio, and drive pulley diameter.
Formula
(3.14159265 * drumDiameter * motorRpm) / (gearRatio * 1000 * 60)
motorRpm
Motor Speed (RPM)
gearRatio
Gearbox Ratio
drumDiameter
Drive Drum/Pulley Diameter (mm)
Worked Example
1
Given:
drumDiameter = 150
gearRatio = 20
motorRpm = 1440
2
Apply the formula:
(3.14159265 * drumDiameter * motorRpm) / (gearRatio * 1000 * 60)
3
Result:0.565 m/s
Conveyor Speed in Dairy Operations
Conveyors are everywhere in dairy plants — product conveyors, pouch conveyors, carton conveyors, tray conveyors in cold rooms. Calculating belt speed accurately is critical for:
- Matching line speed to filling machine output
- Production rate calculation — units per minute or hour
- Product handling — preventing product damage from excessive speed
- Maintenance planning — calculating belt wear from speed × time
Formula
Belt Speed (m/s) = π × D × N / (G × 1000 × 60)
Where:
- D = Drive drum/pulley diameter (mm)
- N = Motor speed (RPM)
- G = Gearbox ratio
Converting to Practical Units
| From m/s | To m/min | To m/hour |
|---|---|---|
| Multiply by | 60 | 3600 |
Production Rate from Belt Speed
If you know the pitch (center-to-center distance) between products on the belt:
Products per minute = Belt Speed (m/min) / Pitch (m)
Example:
- Belt speed: 0.5 m/s = 30 m/min
- Product pitch: 0.15 m
- Production rate: 30 / 0.15 = 200 packs/min
Common Conveyor Speeds in Dairy Plants
| Application | Typical Speed |
|---|---|
| Pouch filling to accumulation | 0.1 – 0.3 m/s |
| Carton conveyor | 0.2 – 0.5 m/s |
| Finished goods to cold room | 0.1 – 0.2 m/s |
| Can/bottle conveyor | 0.3 – 0.8 m/s |
| Bulk transfer (crates) | 0.1 – 0.2 m/s |