Clinker Worker (Cement Manufacturing)
くりんかーこう（せめんとせいぞう）
Industry & Occupation
Classification
Summary
Manufacturing operator who mixes raw materials such as limestone and clay, fires them at high temperature in a rotary kiln, and produces clinker.
Description
Clinker workers are responsible for the core firing process in cement manufacturing. They perform raw material blending and weighing, operation and temperature control of rotary kilns, extraction and crushing of clinker fired at high temperatures, and quality inspections. Equipment inspection and maintenance, safety and health management, and creation of work records are also important tasks. They work shifts at the factory, comply with regulations for heavy machinery operation and dust control, and achieve safe and stable production.
Future Outlook
Stable demand is expected due to infrastructure development needs, but automation and labor-saving in production equipment are progressing. Aging of skilled workers handling high-temperature processes is an issue, increasing the need for young talent development and control technology acquisition.
Personality Traits
Good cooperativeness / High safety awareness / Patient / Strong sense of responsibility
Work Style
Factory work / Heavy machinery operation / Overtime available / Shift work / Team work
Career Path
Line operator → Shift leader → Manufacturing supervisor → Production management → Factory manager
Required Skills
Equipment maintenance / Firing operation / Quality inspection / Raw material blending and weighing / Safety and health management / Temperature control
Recommended Skills
Automatic control knowledge / PLC operation / Powder engineering / Statistical process control
Aptitudes (Strengths Preferred)
| Item | Description |
|---|---|
| Attention to Detail & Accuracy | Precise adjustments to raw material ratios and firing temperatures directly prevent defects. |
| Physical Stamina & Endurance | Physical strength is needed to endure heavy raw material handling, long hours of standing work, and operations in high-temperature environments. |
| Stress Tolerance | Calmness and resilience are required for high-temperature environments and emergency troubleshooting. |
Aptitudes (Weaknesses Acceptable)
| Item | Description |
|---|---|
| Creativity & Ideation | Procedures are predefined, requiring accurate reproduction rather than originality. |
Related Qualifications
- Forklift Operator Training
- Hazardous Materials Handler (Class B Type 4)
- Small Crane Operator
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