Plastic injection moulding is the world’s most widely used manufacturing process for polymeric parts. Its ability to produce complex three-dimensional shapes in high volumes with excellent repeatability makes it indispensable for automotive interiors, consumer electronics, medical devices, and industrial equipment. Nathan Engineering’s moulding division positions the company as a capable plastic injection moulding parts manufacturer in India, serving clients who demand precision, consistency, and speed.
The Injection Moulding Process
Injection moulding works by:
1. Melting plastic granules in a heated barrel
2. Injecting the molten plastic under high pressure into a precision steel mould
3. Allowing the part to cool and solidify within the mould
4. Ejecting the finished part and repeating the cycle
Cycle times range from seconds to minutes depending on part size and material. This makes injection moulding the most efficient process for high-volume plastic parts — exactly what Nathan Engineering specialises in as a manufacturer of moulding parts in India.
Plastic Materials Processed
Nathan Engineering’s moulding division works with a wide range of engineering and commodity polymers:
• ABS (Acrylonitrile Butadiene Styrene) – General purpose, good impact resistance
• PP (Polypropylene) – Chemical resistance, fatigue resistance
• PC (Polycarbonate) – High clarity, impact resistance
• Nylon (PA6, PA66) – High strength, wear resistance, often glass-filled
• POM (Acetal/Delrin) – Stiffness, dimensional stability, low friction
• HDPE/LDPE – Flexible, chemically resistant
• TPE/TPU – Elastomeric, soft-touch applications
• PPS, PEEK – High-temperature engineering applications
Mould Design and Tooling
The mould is the heart of the injection moulding process. Nathan Engineering works with trusted toolmakers to produce:
• Single-cavity and multi-cavity moulds for different volume requirements
• Hot runner systems for waste elimination in high-volume moulds
• Side actions and lifters for complex undercut features
• Interchangeable inserts for design variants
As a plastic injection moulding parts manufacturer in India, Nathan Engineering helps clients optimise their part designs for mouldability, reducing tooling costs and cycle times from the outset.
Quality in Plastic Injection Moulding
Quality control for moulded parts covers:
• Dimensional inspection using CMM and optical comparators
• Warpage and sink mark assessment
• Colour and appearance evaluation per approved master sample
• Functional testing (fit checks, assembly verification)
• Material testing (impact, tensile, melt flow)
• SPC monitoring of critical process parameters (melt temp, injection pressure, cycle time)
Applications of Nathan Engineering’s Moulded Parts
• Automotive – Interior trim, under-hood components, switch housings, connectors
• Electronics – Enclosures, terminal blocks, cable management, housings
• Industrial – Knobs, handles, guards, fittings
• Medical – Device housings, sample containers, connectors
• Consumer Products – Appliance components, packaging
Get a Moulding Quote
Share your 3D model and annual volume requirements with Nathan Engineering for a comprehensive moulding and tooling quotation.
📧 nathan@nathanengineering.co.in | 📞 +91 93601 75927 | 🌐 www.nathanengineering.in
