Conveyors calculator
Conveyor Speed Calculator
Work out the conveyor speed your part rate requires, the speed the process zone needs for its target dwell, and which one binds. Enter the throughput, part pitch, zone length and target dwell.
What this calculator does
- Belt speed for the required part rate, the speed that holds a target dwell, and the margin between them.
Formula used
- Parts per minute = required throughput ÷ 60
- Throughput speed = parts per minute × part pitch ÷ 12 (inches per foot)
- Dwell speed = process zone length × 60 ÷ target dwell seconds
- Dwell at throughput speed = process zone length × 60 ÷ throughput speed
- Speed margin = dwell speed − throughput speed
Inputs explained
- Required Throughput: Parts an hour the schedule or next station needs.
- Part Pitch: Leading edge to leading edge, gap included.
- Process Zone Length: The heated, washed or coated length the part travels.
- Target Dwell Time: Process time each part must spend inside the zone.
How to use the result
- Best suited to sizing a belt through an oven zone, checking dwell after a rate increase, setting a VFD speed for a target dwell.
- One pitch and one speed for the whole zone; a slowing or indexing zone differs. It checks dwell time, not cure or temperature uniformity inside the zone.
Current U.S. benchmarks
- The U.S. has 21,668 machinery manufacturing establishments employing about 1,086,146 workers (Census County Business Patterns, 2023).
Common questions
- Why does the zone need two speed checks? Throughput sets the minimum speed the rate needs. The process sets the maximum speed that still gives the target dwell. The belt has to run between them, so the lower of the two is what binds.
- What dwell does the throughput speed actually give? Divide zone length by throughput speed and multiply by 60. A belt running faster than the dwell speed shortens the time in the zone, which the dwell at throughput speed row makes specific.
- Does the part pitch include the gap between parts? Yes. Pitch is leading edge to leading edge, so it already includes the gap, whether that gap is a flight, a sensor spacing or plain clearance. Measure a few parts if the gap varies.
- What if the required rate is zero? The page requires at least one part per hour, because a zero rate has no meaningful speed. If the line is stopped, leave the last running rate in place and read the speeds from that.
Related guides
Last reviewed 2026-10-01.