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Lean manufacturing statistics (2026)

58 statistics on unplanned downtime, maintenance, quality, safety, the frontline workforce, engagement and digital manufacturing, plus 8 benchmark charts you can download. Every figure links to the report or government table it comes from and shows the year it was published.

26 sources · Last reviewed · Published by LeanSuite

Key takeaways

  • Unplanned downtime costs the world's 500 largest companies almost $1.4 trillion a year, 11% of revenue (Siemens, 2024). See the figure
  • Plants that rely most on reactive maintenance have 3.3 times more downtime and 16 times more defects (NIST, 2020). See the figure
  • Manufacturing records 2.7 injuries and illnesses per 100 full-time workers, against 2.3 for all private industry (BLS, 2024 data). See the figure
  • 1.9 million of the 3.8 million U.S. manufacturing jobs needed by 2033 could go unfilled (Deloitte and The Manufacturing Institute, 2024). See the figure
  • Only 20% of employees worldwide are engaged at work, and highly engaged units have 63% fewer safety incidents (Gallup, 2026 and 2024). See the figure
  • 59% of manufacturers use smart manufacturing technology in operations, but only 43% of the data they collect is used effectively (Rockwell Automation, 2026). See the figure
  • U.S. manufacturing productivity has grown just 0.5% a year since late 2019 (BLS, 2026). See the figure

Benchmarks in charts

8 charts drawn only from public figures: world-class OEE, the cost and pattern of unplanned downtime, reactive maintenance, injury rates by industry, engagement and frontline involvement, and Toyota's suggestion system. Each one names its source and year, and every number was checked against the source on . Download any chart as a PNG to use in a slide or a post; please keep the source line.

World-class OEE is 85%

Seiichi Nakajima's world-class targets for discrete manufacturing

1983

Nakajima set these as minimums from his TPM work in Japan; OEE.com notes they come from one place, time and industry (1970s Japanese automotive) and that most manufacturers it works with score closer to 60%. Set your own target from your baseline. OEE.com dates the book 1984; the Japanese library record (CiNii Books, BA31684414) gives March 1983 for the original, TPM nyumon, published by JIPM.

Source: OEE.com (Vorne Industries), World-Class OEE, citing Seiichi Nakajima, Introduction to TPM (Japanese original 1983; English edition 1988) (page read October 3, 2026)

Show the numbers as a table
World-class OEE is 85%
ItemValue
Availability90%
Performance95%
Quality99%
OEE (90% × 95% × 99%)85%

Fewer stoppages, slower recovery

Unplanned downtime at an average large plant, 2019 against the 2024 report

2024

Siemens survey of 181 maintenance, engineering and IT staff at large plants in automotive, FMCG, heavy industry and oil and gas, April 2019 to March 2023. Each pair is drawn to its own scale because the units differ.

Source: Siemens, The True Cost of Downtime 2024 (Senseye Predictive Maintenance) (2024)

Show the numbers as a table
Fewer stoppages, slower recovery
Measure20192024 report
Downtime incidents a month4225
Hours lost a month3927
Minutes to get running again4981

What unplanned downtime costs a large plant in a year

Estimated yearly cost per large plant, US dollars

2024

Siemens estimates from the same survey of large plants (April 2019 to March 2023). Oil and gas is not shown because the report gives no yearly figure per plant in its text; the average covers all four sectors.

Source: Siemens, The True Cost of Downtime 2024 (Senseye Predictive Maintenance) (2024)

Show the numbers as a table
What unplanned downtime costs a large plant in a year
ItemValue
Automotive$695 million
Average of the four sectors$253 million
Heavy industry$59 million
Fast-moving consumer goodsJust over $10 million

Plants that rely most on reactive maintenance

Top quarter against bottom quarter of U.S. manufacturers for reliance on reactive maintenance

2020

NIST survey of U.S. discrete manufacturers (NAICS 321 to 339, excluding 324 and 325), 2016 data. On average 45.7% of their maintenance was reactive. NIST notes these are associations, not proof that reactive maintenance caused them.

Source: NIST, Economics of Manufacturing Machinery Maintenance: A Survey and Analysis of U.S. Costs and Benefits (NIST AMS 100-34) (June 2020)

Show the numbers as a table
Plants that rely most on reactive maintenance
ItemValue
Defects16.0× more
Inventory increases from maintenance4.9× more
Downtime3.3× more
Lost sales from defects2.8× more
Lost sales from delays2.4× more

Injury and illness rates in manufacturing, 2024

Recordable cases per 100 full-time workers, U.S. private industry

2026

Total recordable cases, 2024 data from the Survey of Occupational Injuries and Illnesses. Industry names shortened: HVAC is NAICS 3334 (ventilation, heating, air-conditioning and commercial refrigeration equipment); electrical equipment and appliances is NAICS 335 (including components).

Source: U.S. Bureau of Labor Statistics, Table 1. Incidence rates of nonfatal occupational injuries and illnesses by industry and case types, 2024 (table updated January 22, 2026)

Show the numbers as a table
Injury and illness rates in manufacturing, 2024
ItemValue
Motor vehicle manufacturing5.6
Beverage and tobacco products3.7
Food manufacturing3.3
Transportation equipment3.2
Motor vehicle parts2.9
All manufacturing2.7
HVAC and refrigeration equipment2.4
Machinery manufacturing2.3
All private industry2.3
Electrical equipment and appliances2.0

What highly engaged teams do differently

Top-quarter against bottom-quarter work units for employee engagement (median difference)

2024

Meta-analysis of 736 studies covering 183,806 business and work units and 3,354,784 employees in 347 organizations. Median percent differences between top-quarter and bottom-quarter units; all industries, not manufacturing alone.

Source: Gallup, The Relationship Between Engagement at Work and Organizational Outcomes: Q12 Meta-Analysis, 11th edition (2024)

Show the numbers as a table
What highly engaged teams do differently
ItemValue
Absenteeism78% less
Safety incidents63% fewer
Quality defects32% fewer
Profitability23% higher
Productivity (production records)14% higher

Frontline workers feel less involved than their leaders

Share who agree, manufacturing employees by job level

2020

Survey of 578 employees at five manufacturers, August to October 2020. A small sample, not representative of the industry.

Source: The Manufacturing Institute and American Psychological Association, Manufacturing Engagement and Retention Study (2020)

Show the numbers as a table
Frontline workers feel less involved than their leaders
MeasureSenior leadersFrontline workers
Enough say in decisions, problem solving and goals96%67%
Enough chances to advance internally85%70%
Satisfied with training and development94%66%

How Toyota's suggestion system grew, 1951 to 1973

Improvement suggestions from employees each year

1973

A historical example, not a benchmark to copy. The 1973 bar is Toyota's expectation in October 1973 (220,000 received by early October) from 43,000 employees. The share of suggestions adopted rose from 29% in 1956 to 76% in 1972.

Source: Toyota Motor Corporation, Toyota Company Suggestion Program Vigorously Supported by Employees (October 22, 1973)

Show the numbers as a table
How Toyota's suggestion system grew, 1951 to 1973
ItemValue
1951 (first year)789
1967Over 20,000
196940,000
197050,000
Fiscal 1972168,000
1973 (expected)Over 250,000

Unplanned downtime

Unplanned downtime is the most expensive routine failure in manufacturing. Siemens puts the bill for the world's 500 largest companies at almost $1.4 trillion a year, 11% of their revenue, and an hour at a large car plant now costs about $2.3 million. Plants have cut the number of stoppages since 2019, but each one takes longer to recover from, so the time between a machine stopping and someone fixing it matters more than ever.

Glossary: Unplanned downtime, OEE, Six big losses, Micro-stops

Go deeper: How to reduce manufacturing downtime, Downtime cost calculator

In LeanSuite: Daily Issue Management gives frontline teams one place to flag, track and resolve shop floor issues as they happen.

Maintenance strategy

Most plants still fix machines after they break. NIST found reactive work is the largest share of maintenance at U.S. discrete manufacturers, and the plants that rely on it most have 3.3 times the downtime of those that rely on it least. Preventable maintenance problems cost those manufacturers $119.1 billion in 2016, about twice what they spent on maintenance itself.

Glossary: Reactive maintenance, Preventive maintenance, Predictive maintenance, TPM, Autonomous maintenance

Go deeper: Proactive vs reactive maintenance, Preventive vs predictive maintenance

In LeanSuite: Autonomous Maintenance puts visual CILR checklists in operators' hands so small abnormalities are caught before they cause downtime.

Quality and the cost of poor quality

Most organizations cannot say what poor quality costs them: only 31% of respondents to ASQE's 2025 research feel they fully understand it. The evidence that does exist points to maintenance and people as big levers. NIST links heavy reliance on reactive maintenance with 16 times more defects, and Gallup finds highly engaged work units have 32% fewer defects. Quality is also where manufacturers most want to apply AI.

Glossary: Cost of poor quality (COPQ), PAF model, First pass yield, Root cause analysis

Go deeper: How to calculate and reduce COPQ, Cost of poor quality calculator

In LeanSuite: LeanSuite's Quality Matrix pulls defect data together, puts a dollar cost on each defect and shows engineering what to fix first.

Safety

Manufacturing is still more dangerous than the average U.S. workplace. In 2024 it recorded 2.7 injuries and illnesses per 100 full-time workers against 2.3 for all private industry, 332,600 cases in total, and 353 deaths. Lockout/tagout, forklifts and machine guarding, all everyday plant hazards, are among OSHA's ten most-cited standards.

Glossary: Lockout/tagout, Near miss, Behavior-based safety

Go deeper: Building a proactive safety culture, How near-miss reporting prevents incidents

In LeanSuite: Behavior-Based Safety turns shop-floor safety walks into trackable observations, positive reinforcement and micro-training.

Frontline workforce and skills

The labor gap is structural, not cyclical. Deloitte and The Manufacturing Institute project that U.S. manufacturing could need 3.8 million more workers by 2033 and that 1.9 million of those jobs could go unfilled. The fastest-growing need is for technicians, and people who can see a path to new skills are far less likely to leave, which makes training and cross-training a retention tool as much as a capability one.

Glossary: Skills matrix, Cross-training, TWI Job Instruction

Go deeper: Closing plant-wide skill gaps in 90 days, The TWI Job Instruction method

In LeanSuite: Competency Management shows your team's competencies on one live matrix so you can close gaps and build a cross-trained workforce.

Employee engagement and frontline ideas

Only one in five employees worldwide is engaged at work, and the gap between engaged and disengaged teams shows up on the shop floor: fewer accidents, fewer defects, less absence and more output. In manufacturing, frontline workers feel far less involved in decisions and problem solving than their leaders do. Toyota's suggestion system shows how far the opposite can go.

Glossary: Kaizen teian, Kaizen, Quality circle, Gemba walk

Go deeper: Kaizen teian: individual improvement suggestions, Kaizen: a complete guide

In LeanSuite: Idea Management collects ideas from frontline teams in one place and turns the best ones into improvement projects.

Digital manufacturing and AI

Manufacturers have moved from asking whether to digitize to making it pay. Rockwell finds 90% call digital transformation essential and 59% already use smart manufacturing technology in operations, and Deloitte's respondents report 10-20% more output from it. The constraint is execution and people: only 43% of collected data is used effectively, most rate their AI maturity as low, and four in ten give frontline workers no AI training.

Glossary: Digital work instructions, Visual management, Leading and lagging indicators

Go deeper: Why you should digitize abnormality reporting, The benefits of digital work instructions

In LeanSuite: KPI Dashboards turn shop floor data into dashboards anyone from operators to the plant manager can read and act on.

Productivity and management practices

U.S. manufacturing productivity has barely grown this business cycle: 0.5% a year from late 2019 to mid-2026. The biggest differences between plants are not only technology. Census data on 32,000 U.S. plants shows structured management practices (targets, monitoring and incentives) explain about a fifth of the productivity gap between plants, as much as R&D and twice as much as IT, and 40% of the variation sits between plants of the same company.

Glossary: Standard work, Yokoten, Operational excellence, Lean manufacturing

Go deeper: Operational excellence in manufacturing, Yokoten: sharing what works across sites

In LeanSuite: Continuous Improvement Software tracks every improvement project, from a small kaizen event to a full DMAIC project, through to results.

How we chose these statistics

  • Every figure comes from the publisher's own page, report or government table, which we read in full. Where a number is widely repeated but we could not find it at the original source, we left it out. Two examples: the $260,000-an-hour downtime cost often attributed to Siemens' 2024 report does not appear in it, and ASQ's current cost of quality page does not give the often-quoted rule that quality costs 15-20% of sales.
  • We prefer figures published from 2022 to 2026. A few older ones stay because no newer primary source measures the same thing (NIST's maintenance survey, 2020; the Census management study, 2017; the Manufacturing Institute retention survey, 2020; Toyota's 1973 suggestion figures). Each shows its year.
  • Figures are shown as the source gives them, without rounding. Sentences are our paraphrase. The one figure we calculated, manufacturing's share of private-industry injury cases, says so.
  • The benchmark charts use only figures from the sources listed with them, drawn as the source gives them. Where a source states a value loosely (for example “just over $10 million” or an expected total), the chart says so in the label. The downloadable PNGs show the same data and a short source line.
  • Surveys differ in who they ask. Industry surveys (Siemens, ABB, Rockwell Automation, Deloitte, NAM, the Manufacturing Leadership Council) are self-reported and cover different countries and company sizes, so compare figures from different sources with care.
  • Last reviewed . Spotted an error or a newer edition? Tell us.

To cite this page: LeanSuite, “Lean manufacturing statistics (2026)”, www.theleansuite.com/learn/lean-manufacturing-statistics, reviewed September 26, 2026. Where you can, cite the original source linked under each figure.

Sources

  1. Siemens, The True Cost of Downtime 2024 (Senseye Predictive Maintenance) (2024)
  2. ABB, ABB survey reveals unplanned downtime costs $125,000 per hour (Value of Reliability survey) (2023-10-11)
  3. NIST, Economics of Manufacturing Machinery Maintenance: A Survey and Analysis of U.S. Costs and Benefits (NIST AMS 100-34) (2020)
  4. ASQ, What is Cost of Quality (COQ)? (citing the 2025 ASQE Insights on Excellence Cost of Quality Report) (2025)
  5. Gallup, The Relationship Between Engagement at Work and Organizational Outcomes: Q12 Meta-Analysis, 11th edition (2024)
  6. Rockwell Automation, Ninety-Five Percent of Manufacturers Are Investing in AI (10th annual State of Smart Manufacturing report) (2025-06-03)
  7. Manufacturing Leadership Council (NAM), Survey: GenAI Adoption Surges In Manufacturing (2026-04-01)
  8. U.S. Bureau of Labor Statistics, Table 1. Incidence rates of nonfatal occupational injuries and illnesses by industry and case types, 2024 (2026)
  9. U.S. Bureau of Labor Statistics, Table 2. Numbers of nonfatal occupational injuries and illnesses by industry and case types, 2024 (2026)
  10. U.S. Bureau of Labor Statistics, Table A-1. Fatal occupational injuries by industry and event or exposure, all United States, 2024 (2026)
  11. U.S. Bureau of Labor Statistics, Census of Fatal Occupational Injuries Summary, 2024 (2026-02-19)
  12. OSHA, Top 10 Most Frequently Cited Standards, fiscal year 2025 (2025)
  13. The Manufacturing Institute and Deloitte, Manufacturers Need as Many as 3.8 Million New Employees by 2033 (2024-04-03)
  14. U.S. Bureau of Labor Statistics, Job Openings and Labor Turnover Survey, Table 1: Job openings levels and rates by industry (July 2026, preliminary) (2026)
  15. The Manufacturing Institute and Deloitte, Deloitte and MI Study Shows Potential for AI to Accelerate Manufacturing Skills Training (2026-09-10)
  16. U.S. Bureau of Labor Statistics, Current Population Survey, Table 18b: Employed persons by detailed industry and age (2025 annual averages) (2026)
  17. National Association of Manufacturers, NAM Manufacturers' Outlook Survey, Second Quarter 2026 (2026-06-10)
  18. Deloitte, 2025 Smart Manufacturing and Operations Survey (2025-05-01)
  19. Gallup, State of the Global Workplace 2026 (2026)
  20. Gallup, U.S. Employee Engagement Declines From 2020 Peak (2026-01-27)
  21. The Manufacturing Institute and American Psychological Association, Manufacturing Engagement and Retention Study (2020 survey)
  22. Toyota Motor Corporation, Toyota Company Suggestion Program Vigorously Supported by Employees (1973-10-22)
  23. Rockwell Automation, 90% of Manufacturers Say Digital Transformation Is Now Essential (2026 State of Smart Manufacturing report) (2026-05-19)
  24. PwC and The Manufacturing Institute, New Study from PwC, MI Finds Frontline Leaders Play a Key Role in Manufacturing AI Adoption (2026-04-03)
  25. U.S. Bureau of Labor Statistics, Productivity and Costs, Second Quarter 2026, Revised (2026-09-03)
  26. NBER (with the U.S. Census Bureau), What Drives Differences in Management? (Working Paper 23300, Bloom et al.) (2017)

FAQ

Lean manufacturing statistics: common questions

  1. 85% is the figure usually called world-class OEE. It comes from Seiichi Nakajima's book Introduction to TPM (Japanese original 1983, English edition 1988) and is based on 90% availability, 95% performance and 99% quality in discrete manufacturing. OEE.com, which explains the origin, notes that most manufacturers it works with score closer to 60%, so set targets from your own baseline.

  2. Siemens' True Cost of Downtime 2024 report estimates that the world's 500 largest companies lose almost $1.4 trillion a year to unplanned downtime, 11% of their revenues. An hour of downtime costs about $2.3 million at a large automotive plant and about $36,000 in fast-moving consumer goods. In ABB's 2023 Value of Reliability survey of 3,215 plant maintenance decision-makers, the typical (median) business put an hour of unplanned downtime at close to $125,000.

  3. Yes, according to NIST's survey of U.S. discrete manufacturers (NIST AMS 100-34, 2020). Reactive work is 45.7% of maintenance on average, and plants in the top quarter for reliance on it had 3.3× more downtime and 16 times more defects than plants in the bottom quarter. NIST put preventable maintenance losses at $119.1 billion in 2016, against $57.3 billion spent on machinery maintenance.

  4. Deloitte and The Manufacturing Institute project that U.S. manufacturing could need as many as 3.8 million additional employees between 2024 and 2033, and that 1.9 million of those jobs could go unfilled if skills and applicant gaps are not closed. The U.S. Bureau of Labor Statistics counted 580,000 manufacturing job openings in July 2026 (preliminary).

  5. U.S. Bureau of Labor Statistics data for 2024 shows 2.7 recordable injuries and illnesses per 100 full-time workers in manufacturing, against 2.3 across all private industry, and 332,600 cases in total. 353 manufacturing workers died from work injuries in 2024, most often from contact with objects and equipment.

  6. Gallup's 2024 meta-analysis of 183,806 business and work units found that units in the top quarter for engagement have 63% fewer safety incidents, 32% fewer quality defects and 78% less absenteeism than bottom-quarter units. Yet Gallup's State of the Global Workplace 2026 report finds only 20% of employees worldwide were engaged at work in 2025.

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