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Quality Controller

Unique Personnel (PTY) Ltd
East London Full-day Full-time

Description:

A Quality Controller (Seal Manufacturing) ensures that all rubber, polymer, and mechanical seals meet dimensional, material, and performance specifications. The role focuses on inspecting raw materials, monitoring molding/curing processes, and verifying finished seals comply with customer drawings and industry standards.

Inspect rubber compounds, PTFE, elastomers (NBR, EPDM, Viton/FKM, Silicone, etc.)


Verify material certifications and batch traceability


Conduct hardness (Shore A), tensile, and elongation tests


Use calipers (verniers), micrometres, and o -ring gauges


Check dimensions against technical data sheets


Conduct visual inspection for surface defects (flash, cracks and deformation)


Maintain inspection records and quality reports


Prepare non-conformance reports (NCR)


Ensure compliance with ISO quality standards (e.g., ISO 9001)
Support internal and external audits


Analyse defect trends for each supplier


Suggest corrective and preventive actions

Requirements:


Strong knowledge of rubber/elastomer properties
Knowledge of full dimensional inspection techniques
Familiarity with hardness testers and testing equipment
Good analytical and problem-solving skills
Attention to detail
Basic knowledge of ISO 9001 quality systems
OWN TRANSPORT REQUIRED
5 years of experience in rubber or seal manufacturingExperience in hydraulic, automotive, or industrial sealing products preferred.
Ability to handle small components and measurement toolsGood eyesight for detailed inspection
Defect rate reductionCustomer complaint reductionOn-time inspection reporting
16 Feb 2026;   from: careers24.com

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