BIZOMAT Tools · Operations

Shift Output

How much should one shift realistically produce?

Estimates practical output per shift from net time, stations, cycle time and efficiency.

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How this tool works

Inputs, units and where to find them

InputUnitTypical source
Shift lengthhrShift length
Breaks + planned stopsminBreaks, meetings and planned stops in minutes
Cycle time / unitminCycle time per unit per station
Parallel stationsstationsParallel stations
Efficiency%Demonstrated efficiency over recent shifts

What each input means

Open an input to see what it is, its units, the worked example and the common mistakes, with a small diagram.

What this means: Shift length
Illustration: Shift lengthA timeline from a start mark to an end mark; Shift length is the time between them.startendtExample: 8 hrShift length
What it is
The total length of the shift from start to finish, including breaks.
Units and format
Enter a number in hr: hours. The form accepts 0 hr to 24 hr.
Example
The form opens with 8 hr as a worked example. It is an illustration, not a recommended value: replace it with your own figure.
Effect on the result
Each extra hour adds 60 net minutes of production time.
Get it right
Enter hours; breaks and planned stops are subtracted in the next field in minutes.
What this means: Breaks + planned stops
Illustration: Breaks + planned stopsA timeline from a start mark to an end mark; Breaks + planned stops is the time between them.startendtExample: 60 minBreaks + planned stops
What it is
Time in the shift when no production happens by plan: meal and tea breaks, start-up meetings, cleaning and planned maintenance.
Units and format
Enter a number in min: minutes. The form accepts 0 min or more.
Example
The form opens with 60 min as a worked example. It is an illustration, not a recommended value: replace it with your own figure.
Effect on the result
Each minute removed from net time lowers output.
Get it right
Enter minutes. Leave unplanned stops to the efficiency figure so they are not counted twice.
What this means: Cycle time / unit
Illustration: Cycle time / unitA timeline from a start mark to an end mark; Cycle time / unit is the time between them.startendtExample: 2.5 minCycle time / unit
What it is
The time one station takes to complete one unit when running normally.
Units and format
Enter a number in min: minutes. The form accepts 0.01 min or more.
Example
The form opens with 2.5 min as a worked example. It is an illustration, not a recommended value: replace it with your own figure.
Effect on the result
Output falls in proportion as cycle time grows.
Get it right
Enter minutes per unit at one station, not the combined line rate.
What this means: Parallel stations
Illustration: Parallel stationsA row of identical items being counted; Parallel stations is how many there are.nExample: 1 stationsParallel stations
What it is
The number of identical stations running the same product at the same time during the shift.
Units and format
Enter a number in stations: stations. The form accepts 1 stations or more. Use a whole number.
Example
The form opens with 1 stations as a worked example. It is an illustration, not a recommended value: replace it with your own figure.
Effect on the result
Output rises in proportion to the number of stations.
Get it right
Count only stations that are staffed and running for the whole shift.
What this means: Efficiency
Illustration: EfficiencyInput on the left and useful output on the right with the loss split off; Efficiency is output divided by input.inputuseful outputlossηExample: 85%Efficiency
What it is
The share of net time that turns into good output, allowing for unplanned stops, slow running and changeovers, calibrated against recent shifts.
Units and format
Enter a number in %: percent: the number is read as a percentage, so type 8 for 8 %. The form accepts 1% to 100%.
Example
The form opens with 85% as a worked example. It is an illustration, not a recommended value: replace it with your own figure.
Effect on the result
Practical output rises in proportion.
Get it right
Compare with real shift output: practical output ÷ theoretical output gives the demonstrated figure.

Method and formulas

  1. Net time = shift × 60 − breaks
  2. Theoretical output = net time × stations ÷ cycle
  3. Practical output = theoretical × efficiency

Limitations

  • Assumes one product per shift

Typical uses

  • Setting shift targets
  • Checking daily plans

Who it is for

  • Supervisors
  • Planners

What you get

  • Practical units per shift
  • Theoretical output and hourly rate

Interpreting the result

  • Calibrate efficiency against real shift output

BIZOMAT tools are screening and decision-support utilities. Verify important financial, engineering, safety, legal or operational decisions using appropriate professional standards and your organisation’s approved data.

Open the Shift Output calculator