Changeover time matrix

Every product switch has a cost. Now you can see it before you commit.

Every line has fast switches and expensive ones. Most plants learn which is which after the clock starts — by instinct, batch size, or who's in the room. Cost shows up in OEE.

Three scheduling decisions made without the data

Same gap each time: no view of changeover cost before the commitment.

The schedule is built

You sequence tomorrow's runs by batch size and delivery order.

Whether that costs 3 hours or 9 hours in changeovers — you won't know until you're in it.

The surprise

REF-31D to REF-55E starts. The line stops.

Three hours in, you realise this is the worst pair on the line. The schedule can't move.

The pattern nobody sees

You learn which pairs are expensive over months of runs.

Nobody records it. The same sequence gets scheduled again next week.

A bad sequence costs real time. You just can't see it until you've committed.

Every product pair, ranked before you run any of them.

ProChangeover computes planned changeover time for every product pair from your task structure. One view. Colour-coded green (cheapest) to red (most expensive). Products grouped by category.

Not entered by hand. Add a task, change a duration, restructure a changeover — it recalculates. Open from the line screen. No separate planning tool. No version drift.

The data was always in your task structure. Now it's usable before you commit.

Changeover time matrix for Line 3 showing planned changeover duration in minutes for all product-pair combinations — REF-12A, REF-14B, REF-16C in the Liquids group and REF-31D, REF-55E in the Powders group — colour-coded green to red

Three things the matrix tells you at a glance

You don't need every cell. Three observations are enough to sequence better.

01

Pick the cheapest landing spot before the schedule locks

Greenest column = product your line reaches cheapest from anywhere. End a long run there — or start the day with it.

02

Know which pairs to avoid before they're committed

Reddest row = product your line leaves most expensively. Spot it before the schedule locks — move it to the end or avoid back-to-back.

03

Always have a cheaper next move ready

For any product running, the row shows every option and its cost. Batch finishes early? Matrix picks the cheapest next run.

4 hours 48 minutes saved. Same products. Different order.

Same five products. Only the order changes — batch size vs. changeover time matrix.

Before — by batch size
REF-12A
145 min
REF-55E
160 min
REF-16C
110 min
REF-31D
85 min
REF-14B

Total changeover time

8 h 20 min

After — matrix-guided
REF-12A
22 min
REF-14B
30 min
REF-16C
110 min
REF-31D
50 min
REF-55E

Total changeover time

3 h 32 min

Who uses the changeover time matrix

Production planner

See which sequence costs least before locking the day. Adjust run order in 30 seconds if a cheaper path exists.

Process engineer

Spot expensive pairs and focus standardisation there. A 20-minute cut on a red cell pays back every time that pair runs.

Shift supervisor

Check the day's run order against the matrix before the first changeover. Catch a bad sequence while you can still change it.

Common questions

After your first run

Stop choosing the next product by instinct.

Matrix computed from your task structure. Line config changes — matrix updates with it.

  • Timestamped sign-off

    Audit-ready from run one

  • Gantt of every task

    See where time was lost

  • A repeatable standard

    Not tied to who showed up

7-day free trial · Self-serve · No IT project