Plastic Injection Moulding Technician – Sourcing

To provide technical and production support to plastic injection moulding job-work vendors, ensuring consistent product quality, smooth production operations, timely delivery, and cost-effective manufacturing. The candidate will be responsible for process setting, troubleshooting, vendor coordination, rejection control, and supporting commercial documentation to achieve better quality at an optimized cost.

Key Responsibilities

1.Possess practical knowledge of plastic injection moulding machines and monitor production activities at job-work vendors.

2.Understand mould loading and unloading, mould changeovers, tooling, and basic mould maintenance requirements.

3.Understand and monitor process parameters such as barrel temperature, injection pressure, holding pressure, injection speed, cooling time, and overall cycle time.

4.Visit job-work vendors to set and optimize injection moulding processes to achieve consistent quality and cost-effective production.

5.Coordinate mould trials, initial sample approval, process validation, and stable mass production after mould changes or new product development.

6.Identify and troubleshoot common moulding defects, including short shots, flash, sink marks, warpage, burn marks, and colour variation.

7.Monitor product quality, dimensions, weight, appearance, and adherence to approved specifications.

8.Understand and recommend suitable plastic raw materials, including PP, ABS, HDPE, LDPE, and other engineering plastics, depending on product requirements.

9.Ensure appropriate material feeding, drying, colour masterbatch mixing, and material handling practices wherever applicable.

10.Monitor production output, cycle time, material consumption, rejection, and machine downtime at job-work vendors.

11.Identify opportunities to reduce conversion costs, material wastage, rejection, and overall manufacturing costs without compromising product quality.

12.Coordinate with job-work vendors, Quality, Maintenance, Tool Room, and Production teams to resolve technical and production-related issues.

13.Follow up with vendors to ensure production schedules and delivery commitments are achieved.

14.Support commercial documentation, including purchase orders, job-work challans, delivery challans, invoices, e-way bills, material reconciliation, and vendor bills, as applicable.

15.Coordinate with Accounts and vendors to resolve discrepancies in invoices, quantities, rates, GST details, and other commercial documents.

16.Maintain vendor-wise records of production performance, quality issues, rejection levels, cost improvements, and delivery performance.

Required Skills and Knowledge

Hands-on knowledge of plastic injection moulding machines, moulding processes, and production operations.

Understanding of machine controls, process parameters, cycle-time optimization, and moulding defect troubleshooting.

Basic understanding of mould construction, cooling systems, ejector mechanisms, and tooling.

Knowledge of plastic raw materials, material grades, masterbatches, and material handling.

Ability to evaluate vendor production capabilities and identify quality and cost-improvement opportunities.

Knowledge of production planning, output monitoring, rejection control, and material reconciliation.

Basic knowledge of quality inspection instruments such as vernier calipers, weighing scales, and other measuring tools.

Vendor coordination, follow-up, negotiation support, and problem-solving skills.

Working knowledge of commercial documents, purchase orders, invoices, delivery challans, e-way bills, and GST details.

Basic computer skills and proficiency in Excel for maintaining production, costing, and vendor records.

Experience Requirements

3–4 years of hands-on experience in plastic injection moulding production.

Experience in machine setting, mould changeovers, process troubleshooting, and mass production.

Experience coordinating with injection moulding job-work vendors is preferred.

Exposure to production costing, conversion charges, material consumption, and vendor commercial documentation will be an advantage.

Experience with hydraulic or all-electric injection moulding machines is desirable.

Key Performance Expectations

Consistent product quality and reduced rejection.

Improved cycle time and production efficiency.

Reduction in material wastage and overall conversion cost.

Timely completion of production and vendor deliveries.

Effective technical coordination and problem resolution at job-work vendors.

Preferred Candidate

A technically sound and proactive candidate with practical injection moulding experience, strong vendor coordination skills, and an understanding of sourcing, production costing, quality control, and commercial documentation. The candidate should be capable of visiting job-work vendors, resolving production issues, improving manufacturing efficiency, and ensuring quality products at competitive costs.