Machine inspection workers in Japan earn on average ¥310,600 a month in base pay and ¥348,100 including overtime and allowances, plus ¥1.05m in annual bonuses: about ¥5.23m a year (2025; all occupations ¥5.46m). Average age 43.7, average tenure 14.9 years. Women's base pay is 72.5% of men's.
By sex
| Monthly base pay | Annual pay (est.) | Age | Tenure | |
|---|---|---|---|---|
| Men | ¥332,700 | ¥5.69m | 44.3 | 15.9 |
| Women | ¥241,200 | ¥3.78m | 42.1 | 11.8 |
By company size
| Company size | Monthly base pay | Annual pay (est.) |
|---|---|---|
| 1,000+ employees | ¥341,900 | ¥6.10m |
| 100–999 employees | ¥304,600 | ¥5.01m |
| 10–99 employees | ¥258,500 | ¥3.93m |
By age (monthly base pay)
| 19 and under | ¥204,700 |
| 20-24 | ¥225,100 |
| 25-29 | ¥245,900 |
| 30-34 | ¥284,400 |
| 35-39 | ¥309,800 |
| 40-44 | ¥336,700 |
| 45-49 | ¥333,500 |
| 50-54 | ¥355,300 |
| 55-59 | ¥375,400 |
| 60-64 | ¥298,600 |
| 65-69 | ¥243,000 |
| 70+ | ¥227,400 |
Basic Survey on Wage Structure 2025 (MHLW, published 2026-03-24). Full-time ("general") employees at private establishments of companies with 10 or more employees. Monthly pay is for June; bonuses are for the previous calendar year. Estimated annual pay = monthly contractual pay × 12 + annual bonus. Source: Ministry of Health, Labour and Welfare (MHLW), via e-Stat. Compiled and translated by The Hardest Market.
Other manufacturing process workers occupations: Pig-iron forging, steelmaking, non-ferrous metal smelting workers · Cast metal manufacturing and forging workers · Metal machine tools workers · Metal press workers · Ironworkers, boilermakers · Sheet metal workers · Metal engraving and surface treatment workers · Metal welding and fusion cutting workers