プラスチック成形 プラスチック成形
What プラスチック成形 do
An English description is being prepared. Japanese description:
基本的な仕事は、材料を成形機に投入し加熱溶融したものを金型などで成形した後、冷却、凝固させ製品にすることである。
プラスチック成形には、圧縮、射出、押し出し、ブロー、真空、発泡、インフレーションなどの成形法があり、作る製品によってそれぞれ異なる成形機を使用することになる。
一般的な作業手順は、まず、作る製品に必要な金型を成形機に取り付ける。材料を成形機に投入し、温度や圧力、速度などの成形条件を成形機にセットし、試運転する。指示どおりの製品ができるように調整し終えると、その後は連続運転により成形を続け、時々材料を補給する。通常は安定して生産を続けられるが、途中で条件が変化すると不良品になる恐れがあるため、機械の監視を続け、必要に応じて成形条件を修正する。成形が終わったら金型から製品を取り出し、形状、寸法が正しいか検査し、仕上げ工程や箱詰め工程へ送る。
現在では、成形の工程は自動化が進んでいる。それに伴い、仕事は機械の監視が中心になっているが、それにはプラスチック成形の基本的な技術と知識が不可欠である。
◇ よく使う道具、機材、情報技術等
成形機、金型
Employment type of workers
プラスチック成形 salary
The average annual pay for プラスチック成形 in Japan is ¥4.58M (≈ $29,141; Basic Survey on Wage Structure (2025), national). The estimated median is ¥4.26M, the typical range is ¥3.23M–¥7.62M and the top 10% earn about ¥6.61M.
How does your pay compare with people your age?
Your numbers are not sent or stored. The distribution is estimated from Japan's national wage statistics, including pay differences by age.
Pay by ageest.
Estimated from the average pay and average age (43.0) using the age-wage curve of the Basic Survey on Wage Structure.
Pay by experienceest.
Pay by employment typeest.
The average hourly wage of ¥2,121 is 1.8× Japan's national average minimum wage of ¥1,177 (fiscal 2026). Minimum wage by prefecture →
Japanese pay is shown in yen (¥5.57M = 5.57 million yen ≈ 557万円). Dollar figures use the current rate of 157.25 yen per dollar and are for reference only; purchasing power differs.
Pay over time
| Year | Average pay | Employment | Openings ratio |
|---|---|---|---|
| 2021 | ¥4.21M | — | — |
| 2022 | ¥4.30M | — | — |
| 2023 | ¥4.36M | — | 1.96x |
| 2024 | ¥4.39M | — | 1.78x |
| 2025 | ¥4.58M | — | 1.67x |
Projected pay for プラスチック成形 (3, 5 and 10 years)est.
Today ¥4.58M → in 3 years ¥4.88M → in 5 years ¥5.10M → in 10 years ¥5.67M (10-year range ¥4.87M–¥6.58M). The model assumes pay growth of +2.1% per year.
What drives the annual growth rate
Projected pay = current pay × (1 + annual growth)^years. The annual growth rate starts from a base wage-growth rate and adds or subtracts labor demand (the job-openings-to-applicants ratio), wage momentum and AI replacement risk for each occupation. Projections are not guarantees. How it is calculated →
Outlook score for プラスチック成形
Each component is a percentile rank among all occupations in the same country (0–100). Weights: labor demand 25, wage momentum / openings 15, pay level 15, AI resistance 25, aging workforce 10 (Japan only), entry barrier 10.
Will AI replace プラスチック成形? AI replacement risk
How AI is changing this job
A written analysis for this occupation is being prepared.
AI replacement risk compares the parts of a job that are easy to hand to AI or software (processing information, documentation, repetitive computer work) with the parts that are hard to automate (physical work, working closely with people, judgment in unpredictable settings), using the MHLW job tag survey on work activities, work context, skills and knowledge. The result is a relative position among all occupations in the country, scaled to 0–100%. Methodology →
Labor demand for プラスチック成形
A ratio above 1.0 means there are more job openings than applicants (a labor shortage). The 5- and 10-year figures are estimates from the openings ratio, wage momentum and AI replacement risk.
The same job in the United States
| プラスチック成形 Japan | Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic United States | |
|---|---|---|
| Median / average pay | ¥4.58M ≈ $29,141 | $44,350 |
| Pay in 10 years (est.) | ¥5.67M | $58,200 |
| Outlook score | 48 | 37 |
| AI replacement risk | 63% High | 33% Low |
| Workers | — | 150K |
Matched by occupation (SOC code). Yen converted at 157.25 JPY/USD for reference; Japanese figures are averages, U.S. figures are medians, and the surveys define occupations differently.
Skills, education and requirements for プラスチック成形
Key skills
Skill levels from the MHLW job tag worker survey.
Key knowledge areas
What the work involves
Important abilities
Licenses and certifications (Japan)
- 特級プラスチック成形技能士 National license
- １級プラスチック成形技能士 National license
- ２級プラスチック成形技能士 National license
- ３級プラスチック成形技能士 National license
- １級強化プラスチック成形技能士 National license
- ２級強化プラスチック成形技能士 National license
Related qualifications listed on job tag (names in Japanese). Some are mandatory, others recommended.
Education of workers
Training before entry
Related work experience
Difficulty of entry: ★★★☆☆ Moderate (from education, training, experience, licenses)
How to become プラスチック成形
The typical path in Japan is shown by the education, training and experience of current workers above and in the Japanese guidance below. A detailed English guide for this occupation is being prepared.
Guidance from job tag (Japanese)
最初は、仕上げや包装工程などの作業を担当した後、成形工程で材料の補給作業などをしながら、成形条件の設定の仕方を学ぶ。成形機の機能や材料の種類、金型の扱い方などを覚えて、自分で設定して様々な製品を作れるようになるには数年の経験が必要である。
関連資格としては厚生労働省の定める技能検定の「プラスチック成形技能士」などがある。材料、機械、成形技術の分野で技術革新が急速に進んでいるため、先輩の指導を受けたり、情報収集するなど、自分の技能や技術を向上させる姿勢が求められる。
Career path and how to earn more as プラスチック成形
Career-path guidance is being prepared. Pay by experience is shown in the Pay section.