Productivity Improvement Case Study – Conversion from 4 Cavity Cold Runner to 8 Cavity Hot Runner Mould

Customer Challenge

A customer was manufacturing a high-volume injection moulded component using a 4 cavity cold runner mould. While the product was functionally performing well, the existing manufacturing setup resulted in:

  • High material wastage due to runner scrap
  • Lower production output
  • Increased cycle cost
  • Higher processing and regrinding effort

The customer was looking for a solution to improve productivity and reduce overall manufacturing cost without affecting the functionality or quality of the component.

IPP Solution

IPP studied the existing product design, molding process, and production limitations in detail. Based on the feasibility analysis, our engineering team proposed:

  • Conversion from a 4 cavity cold runner mould to an 8 cavity hot runner mould
  • Minor part design modifications to improve moldability and cavity balancing
  • Optimization of gate location and filling characteristics while maintaining product functionality and fitment

The project involved:

  • Product and tooling feasibility study
  • Mold flow considerations for 8 cavity balancing
  • Design optimization for hot runner suitability
  • Process parameter development and validation
  • Production trials and quality approval

Key Improvements Achieved

  • Significant reduction in material wastage by eliminating cold runner scrap
  • Increased production capacity through 8 cavity tooling
  • Improved cycle efficiency and machine utilization
  • Lower overall process and manufacturing cost
  • Better process consistency and reduced material handling

Result

The customer successfully implemented the 8 cavity hot runner solution with smooth production transition and improved operational efficiency.

The project helped achieve:

  • Higher productivity
  • Sustainable manufacturing improvement
  • Reduced raw material consumption
  • Long-term cost optimization

Value Delivered by IPP

Tooling and process optimization expertise
✔ Productivity enhancement through cavity expansion
✔ Sustainable reduction in material waste
✔ Cost-effective manufacturing solution
✔ Seamless transition without affecting part functionality

IPP delivers value-engineering solutions that improve productivity, reduce waste, and optimize manufacturing costs through smart tooling and process innovations.

Industries We Serve

Why IPP Plastics?
Built for Quality & Cost Effective Plastic Manufacturing

IPP Plastics delivers cost efficient, high-quality plastic injection moulding and custom product development for industrial and OEM customers. From concept validation and prototyping to scalable mass production, we support products with complex geometries, tight tolerances, and demanding functional requirements. Our experienced engineering team, advanced moulding capabilities, and integrated secondary operations enable reliable, on-demand manufacturing across the product lifecycle.

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FAQs

1. Do you support long-term automotive production programs?

Yes. IPP Plastics supports long-term, high-volume automotive programs with stable, ERP-controlled manufacturing processes.

2. What automotive and EV components do you manufacture?

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3. What materials are used for automotive parts?

We strive to innovate when it comes to functionality. Our mission is to be the best, come and join the ride.

4. Do you handle tooling and mould development?

Each and every one of our customers receives personalised assistance from our dedicated support team.

5. Can you support global OEM and export programs?

Each and every one of our customers receives personalised assistance from our dedicated support team.

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From concept to mass production, IPP Plastics supports your manufacturing goals with precision and scale.