Flowstate

Industrial

Calculator
Industry Benchmarks

How Does Your Shop Compare?

OEE benchmarks by machine type based on industry standards. Know your targets before you start measuring.

60%

Average CNC Shop

Most shops operate well below potential

75%

Top Quartile

Where competitive shops aim to be

85%

World-Class OEE

The gold standard for manufacturing excellence

What These Numbers Mean

A

Availability

How much of the planned production time is the machine actually running? Accounts for breakdowns, setup time, and changeovers.

= Actual Run Time / Planned Production Time

P

Performance

Is the machine running at full speed? Catches slow cycles, small stops, and reduced speed operation that eat into output.

= (Total Pieces x Ideal Cycle Time) / Run Time

Q

Quality

What percentage of parts produced are good on the first pass? Every scrapped or reworked part is wasted machine time.

= Good Pieces / Total Pieces

OEE = Availability x Performance x Quality

A machine at 90% A x 95% P x 99% Q = 84.6% OEE

OEE Targets by Machine Type

Machine TypeAvailabilityPerformanceQualityOEE Target

CNC Machine

CNC

90%95%99%84.6%

CNC Mill

CNC

90%95%99.5%85.1%

CNC Lathe

CNC

90%95%99%84.6%

Industrial Robot

Robotics

95%98%99.5%92.6%

Collaborative Robot

Robotics

95%98%99.5%92.6%

Motor

Power

95%98%99%92.2%

Pump

Power

95%95%99%89.3%

Conveyor

Material Handling

95%98%99.5%92.6%

Industry benchmarks based on ISO 22400 (KPIs for manufacturing operations management) and OEE Foundation standards.

What OEE Costs You in Dollars

Every percentage point of OEE gap represents lost production capacity you're already paying for.

$26K - $78K

5-Machine Shop

5% OEE improvement across 5 machines at $50-150/hr loaded rate. That's recovered capacity you're already paying for.

$1,040 - $3,120

Per Machine / Year

Each 1% OEE improvement recovers ~20.8 hours of productive capacity per machine per year (one shift).

30 Days

First Measurable Results

5-10% OEE improvement in the first 90 days from visibility alone. Operators change behavior when they know they're being measured.

Where CNC Shops Lose OEE

The biggest improvement opportunities for most CNC shops, ranked by typical impact.

A

availability Losses

Unplanned breakdowns

Fix: Predictive maintenance with vibration monitoring

5-15%

Setup & changeover

Fix: SMED methodology + standardized tooling

5-20%

Material shortages

Fix: Kanban signals from machine data

2-5%
P

performance Losses

Reduced feed rates

Fix: Tool wear monitoring + automatic feed optimization

3-10%

Minor stops / idling

Fix: Real-time alerts when cycle time exceeds target

2-8%

Operator delay

Fix: Machine status displays + shift handoff reports

1-5%
Q

quality Losses

Scrap / rework

Fix: SPC monitoring on critical dimensions

0.5-3%

Startup rejects

Fix: First article inspection tracking

0.2-1%

Frequently Asked Questions

What is a good OEE for a CNC machine?
World-class OEE for CNC machines is 85% or above. Most CNC shops operate at 55-65% OEE without monitoring. The top quartile of shops with active monitoring achieve 75-85%. Even a 5-point OEE improvement on a single CNC machine typically saves $3,000-$5,000 per year in recovered production capacity.
How do I calculate OEE for my CNC shop?
OEE = Availability x Performance x Quality. Availability measures uptime vs planned production time (accounting for breakdowns, setup, changeovers). Performance measures actual speed vs ideal cycle time. Quality measures good parts vs total parts produced. For CNC machines, world-class targets are 90% Availability, 95% Performance, and 99% Quality = 84.6% OEE.
What is the biggest OEE loss in CNC machining?
The #1 OEE loss for most CNC shops is unplanned downtime (availability loss), typically accounting for 10-25% of lost production time. The second biggest is setup and changeover time. Together, these availability losses usually represent 60-70% of total OEE gap. This is why real-time machine monitoring with automatic downtime detection has the highest ROI.
How much does 1% OEE improvement save?
For a typical CNC machine running one shift (2,080 hours/year), each 1% OEE improvement recovers about 20.8 hours of productive capacity. At $50-150/hour loaded machine rate, that's $1,040-$3,120 per machine per year. For a 5-machine shop improving OEE by 5 points, that's $26,000-$78,000 in annual recovered capacity.
How long does it take to improve OEE?
Most shops see measurable OEE improvement within 30 days of installing monitoring. The first gains come from visibility: operators change behavior when they know the machine is being measured. Typical trajectory: 5-10% improvement in the first 90 days from awareness alone, then 1-2% per quarter from targeted improvements based on downtime Pareto analysis.

See Where Your Shop Stands

Our free assessment analyzes your machine count, current monitoring, and goals to show you exactly where the gaps are — and how much they cost you each month.

Calculate Your Downtime Cost