Machine Downtime Tracking & Breakdown Alerts for CNC Shops

Short answer

Downtime tracking software records when each machine stopped, for how long, and why — from a one-tap reason on the operator's tablet or automatically from the machine — then alerts the owner the moment a breakdown is reported and ranks the week's lost hours by cause. That ranking is where the first fix comes from.

Key facts

Captured: Start, end, duration, reason, machine, operator, job — every stop
Reasons: Short grouped list: breakdown · setup · tooling · material · quality · utilities · operator
Alerts: Breakdown → owner & supervisor phones in seconds, with reason
Automatic detection: With auto-count box or controller connection: running/idle without a tap
Reports: Downtime by reason, by machine, by shift; minute-by-minute machine timeline
After the fact: Root cause and corrective action recorded per breakdown

Why is downtime invisible in most machine shops?

Because nobody writes down a six-minute stop. A register captures the big breakdown that stopped the machine for two hours; it never captures the eight short stops — tool setting, waiting for the inspector, an air-pressure dip — that added up to ninety minutes across the shift. The long stop is rare and gets fixed. The short ones repeat every day and never get named.

Tracking works only when logging a stop costs less effort than not logging it. That is why OpeEye puts it at one tap with a short list of reasons — and why, on machines with an auto-count box or controller link, the stop appears on the board by itself and the operator only supplies the reason.

How does downtime tracking work in OpeEye?

01
The machine stops
The operator taps Pause (short, controlled stop) or Breakdown (fault) and picks the reason. Or the auto-count box / controller reports idle and the board flags it.
02
People who need to know, know
Breakdowns alert the owner and supervisor in seconds. The machine turns red on the live floor board and the wall TV until a supervisor clears it.
03
It adds up — with reasons
Every stop lands on the machine timeline and in downtime-by-reason reports per machine, shift and week. Root cause and corrective action can be recorded on each breakdown.

Which downtime reasons should operators be able to pick?

A short, grouped list beats a long one. Operators will tap the right reason when there are fifteen well-named choices and the first one when there are sixty. The groups that cover a CNC shop:

Breakdown — tool breakage, spindle, alarm/fault, hydraulics, electrical
Setup — job changeover, first-piece approval, program edit
Tooling — tool change, insert change, tool not available
Material — waiting for material, wrong material, material inspection
Quality — inspection hold, dimension issue, rework
Utilities — power cut, air pressure, coolant
Operator — break, no operator, training

The full ready-to-use list, with naming rules, is in the guide to machine downtime reason codes.

What does the breakdown alert look like?

CNC-03 stopped — spindle noise · reported by Suresh · just now. That is the whole message, on your phone, seconds after the tap. A second kind of alert catches the slow loss: a setup running past its planned time, so the supervisor knows before the shift is gone.

What reports come out of it?

Downtime by reason

Minutes lost per reason, ranked, for a shift, a week or a month. The top line is your first improvement project.

Downtime by machine

Which machines lose the most time and to what — a spindle that keeps 'making noise' is a maintenance job waiting to be scheduled.

Machine timeline

A minute-by-minute day for each machine: run, setup, pause, breakdown, idle. Any stop can be reviewed with its reason and operator.

Breakdown log

Every breakdown with reason, duration, who reported it, who cleared it, and root cause / corrective action where recorded.

Shift & daily reports

Downtime alongside output, rejects and OEE, generated automatically.

OEE availability

The same stops feed the availability factor, so OEE and downtime always agree.

Manual vs automatic downtime detection
	Operator tablet	Auto-count box / controller
Detects the stop	When the operator taps	Automatically, within seconds
Knows the reason	Yes — picked at the moment	No — the tablet supplies it
Works on	Every machine, any age	Machines with a cycle signal / supported controller
Catches short stops	If the operator taps	Always
Best for	Day one, every machine	Busy machines where the count and stops must be hands-free

Both, on the same floor. Start with tablets everywhere; add automatic detection on the machines where the gap between logged and real stops matters most. See how OpeEye connects to your machines.

Know about the breakdown before you reach the floor.

A 20-minute demo, on-site in Rajkot and across Gujarat or over a call anywhere in India. Free 15-day trial, no hardware to buy from us.

Book a demo WhatsApp us

Questions shop owners ask

How is downtime recorded without slowing the operator down?

One tap. When a machine stops, the operator taps Pause or Breakdown on the tablet and picks a reason from a short list — tool breakage, spindle, power, air pressure, material waiting, no operator, inspection. The timestamp is automatic; the stop ends when they tap Resume. Under five seconds.

How fast does the breakdown alert reach me?

Seconds. A breakdown reported at the machine sends an alert to the owner's and supervisor's phones with the machine, the reason and the operator. The machine shows red on the live board until a supervisor clears it.

Can downtime be detected automatically?

On machines with an auto-count box or a direct controller connection, running and idle are detected automatically and the stop appears on the board without a tap. The reason still comes from the operator — a control cannot know that the stop was 'waiting for material'.

What is the difference between a pause and a breakdown?

A pause is a planned or short stop the operator controls — tea break, inspection, material waiting. A breakdown is a fault that stops production — tool breakage, spindle noise, alarm, power. Breakdowns alert supervisors, lock the machine until cleared, and can carry a root cause and corrective action afterwards.

What reasons should be on the list?

Fewer than you think — around 15 to 20, grouped: breakdown, setup, tooling, material, quality, utilities, operator. Too many and operators pick the first one. Our ready-to-use list is in the downtime reason codes guide.

Does OpeEye do preventive maintenance?

It tracks machine maintenance and reminders for planned maintenance, and every breakdown carries its reason and, if recorded, its root cause and corrective action — so repeat failures become visible. It is not a full CMMS; it is the shop-floor record that tells you which machine and which cause to schedule for.

Machine downtime tracking & breakdown alerts for CNC shops