Machine degradation

100 machines monitored from commissioning to failure, with an exact remaining-useful-life label on every one of 23,118 readings.

A fleet run to failure. Each machine accumulates damage toward a failure time that was declared before any row existed, so remaining useful life is exact rather than annotated afterwards. That is the thing the widely used public predictive-maintenance datasets do not have: in AI4I 2020 tool wear is as likely to fall as to rise between consecutive readings of the same machine, and there is no remaining-life label at all. Four failure modes each drive the measurement they should, sensors go missing in a structured way depending on which control pass was run, and the train and test split is by machine so nothing leaks between them.

  • predictive maintenance
  • prognostics
  • remaining useful life
  • condition monitoring
  • time series

Four machines run to failure

Real rows from readings.csv, one machine per failure mode.

02460%25%50%75%100%failuremm/slife consumedheat dissipationtool wearoverstrainpower
Each line is one machine, from commissioning to the cycle it failed. Vibration sits near its healthy value and then climbs, which is what a health indicator does as damage opens up. The overstrain machine ends highest because that mode drives vibration hardest. Four real trajectories from readings.csv, not an illustration.

Explore

Every table, profiled

Each column's type, spread, empties and most common values, measured from the CSVs in the download. Switch to the first rows to see the data exactly as it sits in the file.

ground_truth.csv

23,118 rows · 3 columns · 1 foreign keys

unit_idforeign key
points to units.unit_id
100 distinctno empties
cyclenumber
2316
mean 120.8median 1161 to 358no empties
damagenumber
0.00161
mean 0.44median 0.410.00048 to 1no empties

Keys

Every join resolves

2 foreign keys, 46,236 references checked against the table each one points at. None points at a row that does not exist.

ground_truth

  • unit_idunits.unit_id0 orphans

readings

  • unit_idunits.unit_id0 orphans

Checks

What we checked

  • rul_cycles equals life minus cycle on all 23,118 rows
  • Exactly one failure row per machine, 100 of 100, each at rul_cycles 0
  • tool_wear_min never decreases within a machine, because material does not come back
  • Process temperature exceeds air temperature on every observed row
  • The latent damage state is absent from the benchmark file
  • Split is by machine: 80 train, 20 test, no machine in both
  • Sensors go missing by control type, not at random: 9,347 vibration, 7,501 torque, 6,270 air
  • heat_dissipation failures run 9K hotter than every other mode at failure
  • Baseline: random forest 22.8 cycles MAE on held-out machines, against 58.9 for the mean

The same checks ship in the zip as INTEGRITY.txt, so you can rerun them in any SQL engine. How we verify

Questions

Worth asking it

  1. 1How many cycles of life does this machine have left?
  2. 2Which failure mode is this machine heading toward?
  3. 3How early can a rising vibration signal be trusted?
  4. 4How well does a health indicator recover the true damage state?

Full version · $15

This sample, or the full Predictive Maintenance Fleet

Two years of sensor readings, failures, repairs and costs for 240 machines. Try its free preview before you decide.

This samplePredictive Maintenance Fleet
Rows46,336179,038
Tables36
Columns2091
FormatsCSVCSV
AuditKeys and the checks listed above67 checks, all listed
LicenceCC0, freeCommercial use, $15 once
Built forpredictive maintenance, prognostics, remaining useful life, condition monitoringRemaining useful life (RUL) regression, Survival analysis, Anomaly detection and alarm tuning, Failure mode diagnosis, Maintenance strategy and cost, Dashboards and teaching

Use it

Take it, or make one shaped like yours

Rebuild it byte for byte

The zip includes schema.yaml. Run misata generate --config schema.yaml with seed 2020 and you get the same rows.

Your own tables, your own numbers

Describe the data you need in Studio and get connected tables with the totals you state, profiled like this and checked before you download.

The full version, and what goes with it

All premium
  • Vibration through a life that ends in failure

    240 machines at 4 plants, two years

    Two years of sensor readings, failures, repairs and costs for 240 machines

    Answer key

    • failure_mode
    • true_life_days
    • true_failure_at
    • +6 more
    Rows
    179,038
    Tables
    6
    Checks
    67 of 67
    Free previewProfile and preview
  • An X-bar chart with the truth underneath: flatness, characteristic 139

    3 plants, 36 CNC machines, six months

    Six months of control charts with the ground truth underneath

    Answer key

    • active_cause_id
    • true_cause_shift_sigma
    • true_tool_wear_sigma
    • +6 more
    Rows
    515,442
    Tables
    15
    Checks
    101 of 101
    Free previewProfile and preview
  • QA review of manufacturing batch records, by month

    One oral-solids plant, five systems, two years

    Two years of a pharmaceutical plant's records, from process order to QP release

    Answer key

    • root_cause
    • batch_disposition_outcome
    • conclusion
    • +6 more
    Rows
    661,497
    Tables
    65
    Checks
    133 of 133
    Free previewProfile and preview

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Fully synthetic. No real person, company or transaction is represented, and no production data was read to make it. CC0: use it anywhere, no attribution needed.