How do you calculate conveyor speed?

For a part rate, multiply parts per minute by the part pitch in inches and divide by 12 for feet per minute. For a dwell, divide the zone length in feet by the dwell in seconds and multiply by 60. 900 parts an hour at 8 inches is 10 ft/min; an 18 ft zone at 90 s allows up to 12 ft/min, the Conveyor Speed calculator's own example.

Why does a process zone need two speed checks?

The rate sets the slowest the belt can run, and the dwell sets the fastest. The belt has to run between the two. When the rate speed is above the dwell speed no setting does both: lower the rate, close up the pitch or lengthen the zone.

What dwell does the zone give at the required rate?

Zone length × 60 ÷ throughput speed. The dry-off oven in the example gives 108 s at the 16.7 ft/min the 1,200-an-hour rate needs, against a 150 s target.

What is the maximum rate a zone can take?

The dwell speed converted back to parts: dwell speed × 12 ÷ pitch × 60. The 30 ft dry-off oven at 150 s and a 10 inch pitch takes up to 864 parts an hour.

Does pitch include the gap between parts?

Yes. Pitch is leading edge to leading edge, so it already includes the gap, whether it is set by hooks, flights or plain spacing. Closing up the pitch lowers the speed a rate needs.

Does the workbook use macros?

No. It is a plain .xlsx with ordinary formulas, tables and native charts. The Verify sheet re-checks the formulas against fixed test conveyors and shows Self-check: PASS.

Production and Throughput

Conveyor Speed Excel Template

Belt speed for the rate = parts per minute × part pitch ÷ 12; fastest speed that holds the dwell = zone length × 60 ÷ target dwell. Give every conveyor through an oven, washer or tunnel a row and see whether any speed does both, the dwell the zone gives at the rate, whether the current belt setting is inside the window, and the most parts an hour the zone can take.

Free, and a plain .xlsx with no macros to enable. A CSV with live formulas and a printed how-to guide come with it.

Overview

This conveyor speed template is a working Excel workbook for process and manufacturing engineers, finishing and coating supervisors and line technicians. Each conveyor through a process zone (a cure or dry-off oven, a washer stage, a cooling, UV or shrink tunnel) is one row with the parts an hour it must carry, the part pitch from leading edge to leading edge, the effective zone length, the dwell each part needs and the belt speed it is set to. The workbook gives the slowest speed the rate allows, the fastest speed that still holds the dwell, the margin between them, the dwell the zone gives at the rate's speed, whether the setting sits inside the window, and the most parts an hour the zone can take at its dwell. It ships with eight conveyors at a fictional finishing plant, so every tile and chart is filled in when you open it.

In the example the powder cure oven carries 900 brackets an hour at an 8 inch pitch: 15 a minute needs 10 ft/min, and its 18 ft zone holds a 90 s cure up to 12 ft/min, so the 11 ft/min setting fits. After the panel line went from 800 to 1,200 parts an hour, the dry-off oven needs 16.7 ft/min but holds its 150 s dwell only up to 12, giving 108 s, 72% of the dwell; its 30 ft zone can take 864 parts an hour. The shrink tunnel has room, but its 17 ft/min setting is above the 16 ft/min dwell speed and gives 28 s of a 30 s dwell.

Dwell is time in the zone, not proof of cure, dryness or temperature. The download is a plain .xlsx with no macros. A CSV with live formulas is also included for other tools; the dashboard, charts and self-check are in the .xlsx.

What this template includes

Setup sheet with your plant
Conveyors table, one row per conveyor: zone, product, required throughput, part pitch, zone length, target dwell and current belt setting, with a Check column
Per conveyor: parts per minute, throughput speed, dwell speed, speed margin, dwell at throughput speed, dwell achieved, a status in words, setting in window (Yes/No), dwell at the setting and maximum rate at target dwell
Dashboard with four tiles (conveyors, zones that cannot hold dwell at the rate, settings outside the window, lowest speed margin), each conveyor's speed window against its belt setting, dwell achieved at the required rate, and the conveyor table
Method sheet with every formula, and a Verify sheet that re-checks the formulas against an independent reference and the Conveyor Speed calculator (Self-check: PASS)
CSV with live formulas for the Conveyors table; the dashboard, charts and self-check are in the .xlsx

Suggested use case

Use it before a rate increase to see which ovens and tunnels can still hold their dwell, to set conveyor drive speeds, or to audit belt settings across a finishing or packaging line.

How to use it

On Setup, type your plant.
On Conveyors, give each conveyor a row: zone, product, required parts per hour, part pitch, zone length, target dwell and the current belt setting.
Fix anything the Check column names.
Open the Dashboard: each conveyor's speed window against its setting, and the zones that cannot hold dwell at the rate.

Frequently Asked Questions

How do you calculate conveyor speed?: For a part rate, multiply parts per minute by the part pitch in inches and divide by 12 for feet per minute. For a dwell, divide the zone length in feet by the dwell in seconds and multiply by 60. 900 parts an hour at 8 inches is 10 ft/min; an 18 ft zone at 90 s allows up to 12 ft/min, the Conveyor Speed calculator's own example.
Why does a process zone need two speed checks?: The rate sets the slowest the belt can run, and the dwell sets the fastest. The belt has to run between the two. When the rate speed is above the dwell speed no setting does both: lower the rate, close up the pitch or lengthen the zone.
What dwell does the zone give at the required rate?: Zone length × 60 ÷ throughput speed. The dry-off oven in the example gives 108 s at the 16.7 ft/min the 1,200-an-hour rate needs, against a 150 s target.
What is the maximum rate a zone can take?: The dwell speed converted back to parts: dwell speed × 12 ÷ pitch × 60. The 30 ft dry-off oven at 150 s and a 10 inch pitch takes up to 864 parts an hour.
Does pitch include the gap between parts?: Yes. Pitch is leading edge to leading edge, so it already includes the gap, whether it is set by hooks, flights or plain spacing. Closing up the pitch lowers the speed a rate needs.
Does the workbook use macros?: No. It is a plain .xlsx with ordinary formulas, tables and native charts. The Verify sheet re-checks the formulas against fixed test conveyors and shows Self-check: PASS.