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Industrial Automation

Production Rate & Parts Per Hour Calculator

Convert cycle time, parts per cycle, and uptime into ideal and actual parts per hour (PPH). Use it to quote capacity or compare line speed.

Production capacity workflowStep 4 of 5

  1. PLC scaling
  2. Conveyor timing
  3. Takt time
  4. 4Production rate
  5. OEE

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Continue to OEE Calculator — Continue the guided sequence with your current context.

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Line parameters
Adjust sliders to explore throughput scenarios.
4.5 s
1
92%
Live throughput
Ideal and actual production rates.
parts/min
parts/min
parts/hr
parts/hr
cycles
92.0%
x

Related tools

Industrial AutomationTakt Time CalculatorIndustrial AutomationOEE CalculatorIndustrial AutomationConveyor Timing SimulatorIndustrial AutomationPLC Analog Scaling Calculator
How it works: Ideal parts per hour = (3600 ÷ cycle time in seconds) × parts per cycle. Actual PPH multiplies that ideal rate by uptime so stops, changeovers, and micro-stoppages show up in the hourly number. Cycle time from a target rate is 3600 ÷ parts per hour. See the parts-per-hour workflow.

Learn about this tool

What it is, when to use it, formulas, and common questions

What is this?

A production rate and parts per hour calculator. It converts cycle time, parts per cycle, and line uptime into ideal and actual pieces per hour (PPH), so you can quote capacity or compare theoretical line speed with what the line will actually ship.

When do engineers use it?

Use it when someone asks for parts per hour, pieces per hour, or a manufacturing throughput number from a known cycle time. Typical moments: quoting a cell, checking whether a dual-cavity tool hits the customer’s hourly demand, or seeing how a drop in uptime changes PPH before you promise a schedule.

After you have PPH, compare it with takt time (customer demand) and OEE (where the losses actually sit). If the station includes a camera trigger and reject, check conveyor travel time so the cycle is physically achievable.

Formula

Ideal PPH = (3600 ÷ cycleTimeSeconds) × partsPerCycle
Actual PPH = Ideal PPH × (uptimePercent ÷ 100)
Cycle time (s) = 3600 ÷ partsPerHour

Use seconds for cycle time. A 6 s cycle is 10 cycles per minute and 600 cycles per hour before uptime.

Example

Single cavity: 6 s cycle, 1 part/cycle, 85% uptime. Ideal PPH = (3600 ÷ 6) × 1 = 600. Actual PPH = 600 × 0.85 = 510 parts/hour.

Multi-cavity: same 6 s cycle, 2 parts/cycle, 85% uptime. Ideal PPH = 600 × 2 = 1,200. Actual PPH = 1,200 × 0.85 = 1,020 parts/hour.

Reverse: a quote that needs 900 actual parts/hour at 85% uptime requires ideal PPH = 900 ÷ 0.85 ≈ 1,059, so cycle time at 1 part/cycle ≈ 3600 ÷ 1059 ≈ 3.4 s.

FAQ

Is parts per hour the same as production rate?
In discrete manufacturing, yes for this calculator. Production rate here is parts (or pieces) per hour. Ideal PPH ignores stops. Actual PPH applies uptime so the number is closer to what you can ship.
How do I convert cycle time to parts per hour?
Divide 3600 by cycle time in seconds, then multiply by parts per cycle. A 10 s cycle with 1 part is 360 PPH ideal. Multiply by uptime (as a fraction) for the actual rate.
What does PPH mean?
PPH is parts per hour, also called pieces per hour. It is the hourly throughput of a station or line. UPH (units per hour) is the same idea with a different unit name.
How does uptime change parts per hour?
Actual PPH = ideal PPH × uptime. At 100% uptime, actual equals ideal. At 80% uptime, you ship 80% of the theoretical hourly rate. A 600 PPH ideal line at 80% uptime is 480 PPH actual.
How should I count parts per cycle?
Count good parts that leave the station per machine cycle. A dual-cavity mold is 2. A reject that still occupies the cycle is not extra throughput.
Can I use this for quoting capacity?
Yes as a first pass. Use a realistic uptime (often 80–90% unless you have data) rather than 100%, then cross-check takt time against customer demand and OEE if you need a loss breakdown.