Job Description: Roller Grinding Operator
Department: Roller Coverings
Designation: Roller Grinding Operator
Reports To: Production Supervisor
Job Purpose
To operate roller grinding machines for grinding, finishing, and dimensioning rubber-covered rollers according to customer specifications, engineering drawings, dimensional tolerances, surface finish requirements, and quality standards.
Key Responsibilities
1. Machine Operation
- Operate cylindrical grinding machines, rubber roller grinders, and related finishing equipment.
- Set up rollers, shafts, centers, and supporting arrangements correctly before grinding.
- Select appropriate grinding wheels, speeds, feed rates, and grinding parameters according to rubber hardness and roller specifications.
2. Roller Grinding and Finishing
- Grind rubber-covered rollers to the required outside diameter (OD), length, profile, and surface finish.
- Maintain specified tolerances, cylindricity, concentricity, and crowning requirements where applicable.
- Perform rough grinding, finish grinding, and surface polishing as required.
- Prevent overheating, surface burning, chatter marks, vibration, scratches and other grinding defects.
3. Quality Inspection
- Measure roller diameter, length, crown, and other specified dimensions using micrometers, Pi tapes, vernier calipers, dial indicators, and other measuring instruments.
- Check roller surface condition, uniformity, and finish during and after grinding.
- Verify compliance with job cards, engineering drawings, and customer specifications.
- Report dimensional deviations, surface defects, and nonconforming rollers to the supervisor or quality department.
4. Roller Handling and Setup
- Ensure correct mounting, alignment, and secure clamping of rollers.
- Handle heavy and long rollers safely using appropriate lifting equipment.
- Check roller runout and investigate excessive vibration or irregular grinding patterns.
5. Machine Maintenance and Housekeeping
- Perform routine cleaning, lubrication, and basic preventive maintenance.
- Inspect grinding wheels, belts, bearings, and machine components for wear or damage.
- Maintain a clean and organized grinding area and follow workplace safety procedures.
6. Production and Documentation
- Complete grinding jobs within the planned production schedule.
- Minimize rubber wastage, rework, and unnecessary material removal.
- Record job details, final dimensions, and inspection results in production reports.
- Coordinate with production, quality control, and dispatch teams to ensure timely completion of orders.
Required Qualifications and Experience
- Matriculation, technical diploma, or equivalent qualification preferred.
- 2-5 years of experience in cylindrical grinding or rubber roller grinding.
- Experience in rubber roller manufacturing will be an advantage.
- Knowledge of roller dimensions, tolerances, grinding parameters, and measuring instruments.
- Ability to read engineering drawings and follow job cards.
Required Skills
- Precision measurement and dimensional inspection.
- Knowledge of rubber hardness and its effect on grinding.
- Machine setup, alignment, and troubleshooting.
- Attention to detail and quality consciousness.
- Safe material handling and basic machine maintenance.
- Ability to meet production targets while maintaining product quality.
Performance Indicators (KPIs)
- Dimensional accuracy and surface finish quality.
- First-pass acceptance rate.
- Grinding productivity and on-time completion.
- Reduction in rework, scrap, and rubber wastage.
- Compliance with safety and preventive maintenance procedures.
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