: Quality Control (QC) Inspector / Executive – Rubber Manufacturing

Department: Quality Control / Quality Assurance

Reports To: QC Manager / Quality Head

Location: Coimbatore

Employment Type: Full time

Job Purpose To ensure all raw materials, in-process rubber compounds, and finished rubber products meet customer specifications, applicable standards, and internal quality requirements through systematic inspection, testing, and documentation.

Key Responsibilities

1. Incoming Material Inspection

- Inspect and test raw materials (natural rubber, synthetic rubber, carbon black, fillers, oils, curatives, chemicals) against specifications
- Verify supplier Certificates of Analysis (COA) and approve or reject lots
- Maintain material traceability and batch records

2. In-Process Quality Control

- Test rubber compounds for Mooney viscosity, specific gravity, hardness, and cure characteristics using the rheometer (MDR/ODR)
- Monitor mixing, calendering, moulding, and curing parameters
- Conduct first-piece and periodic inspections during production
- Identify deviations and stop or hold non-conforming material

3. Finished Product Inspection

- Check dimensions, appearance, and tolerances using vernier, micrometer, gauges, and measuring equipment
- Test physical properties: tensile strength, elongation, tear strength, hardness (Shore A), compression set, and ageing resistance
- Perform final inspection before dispatch and approve release

4. Documentation & Compliance

- Prepare and maintain inspection reports, test certificates, and quality records
- Maintain batch cards, control plans, and checklists
- Support ISO 9001 / IATF 16949 audits and customer audits
- Ensure compliance with relevant standards (ASTM, ISO, IS, customer specs)

5. Non-Conformance & Corrective Action





- Record and investigate rejections and customer complaints
- Conduct root cause analysis (5 Why, Fishbone)
- Implement and follow up on corrective and preventive actions (CAPA)

6. Calibration & Equipment

- Ensure testing instruments and gauges are calibrated on schedule
- Maintain lab equipment and keep the testing area clean and organized

7. Continuous Improvement

- Analyze rejection and defect data to reduce scrap and rework
- Support SPC, Kaizen, 5S, and quality improvement initiatives
- Coordinate with production, maintenance, purchase, and R&D; teams

Qualifications & Experience
- Education: Diploma / B.Sc. / B.E. / B.Tech in Rubber Technology, Polymer Science, Chemistry, Mechanical, or related field
- Experience: 1–5 years in a rubber or polymer manufacturing QC role (freshers with relevant training may be considered for inspector level)

Skills & Competencies

Technical

- Knowledge of rubber compounding, processing, and testing methods
- Hands-on experience with rheometer, Mooney viscometer, tensile testing machine, hardness tester, and measuring instruments
- Understanding of ASTM/ISO test standards and drawing reading
- Familiarity with SPC, MSA, FMEA, and control plans

Soft Skills

- Strong attention to detail and accuracy
- Good record-keeping and report-writing ability
- Problem-solving and root cause analysis skills
- Effective communication and teamwork
- Basic computer skills (MS Excel, Word)

Working Conditions
- Shop floor and laboratory environment
- Exposure to rubber fumes, heat, and moving machinery; PPE required
- Shift work may be required

Key Performance Indicators (KPIs)
- Customer complaint rate and PPM
- In-process and final rejection percentage
- On-time inspection and report completion
- Audit findings closure rate
- Calibration compliance

Pay: ₹18,000.00 - ₹40,000.00 per month

Work Location: In person

📌 Quality Controller (Ganapathy)
🏢 krishna rubber product
📍 Ganapathy