Micro injection moulding machine: Idea Stampi services

Over the years, Idea Stampi has developed strong expertise in designing and manufacturing very small moulds for micro injection moulding machines, producing plastic parts down to 0.10 g with tight tolerances and repeatable quality. If you need high-precision moulds for your micro plastic injection machine, here’s exactly how Idea Stampi can support your project.

What is micro injection moulding

Micro plastic injection moulding is a manufacturing process used to produce extremely small and high-precision thermoplastic components. Molten plastic is injected into a micro mould under carefully controlled pressure, temperature and timing parameters.

As products become smaller and more complex, companies increasingly rely on micro injection moulding machines and high-precision tooling capable of ensuring: dimensional accuracy, process stability, repeatability over high-volume production, and consistent part quality.

Micro injection moulding is widely used in industries such as:

Medical (micro-syringes, orthodontic instruments, micro-surgical tools and accessories)
Electronics and sensors
Micro-engineering and precision devices

Discover more: What precision injection moulding is and how it works

Create now the moulds for your micro plastic injection moulding machines

Request a quote

Micro injection moulding machine: why choose Idea Stampi

Idea Stampi designs and builds micro moulds specifically for micro injection machines, ensuring that:

moulds are engineered to match your micro injection machine’s requirements (shot size, clamp force, sprue, etc.)
parts are consistently produced within tight tolerances, even at very small weights
process stability and quality are maximised from the first shot

Our approach is to tailor every micro mould to your specific part geometry, material, and production volume, so your micro plastic injection machine performs at its best.

How Idea Stampi builds moulds for micro injection machines

3D model design and analysis

All micro mould projects start with a detailed 3D CAD model, created using advanced mould design software and validated through technical analysis. This phase allows us to:

reproduce mould geometry accurately, including micro-features
evaluate critical points (venting, filling balance, part ejection)
identify and correct potential issues (air traps, poor filling, flash) before production
optimise the feeding system based on your micro injection machine parameters

By simulating the process in advance, we reduce the risk of defects and ensure smoother start-up once the mould is installed on your micro plastic injection machine.

Precision mould constructions

Micro moulds for micro injection moulding machines are typically engineered using high-quality steel or cast iron, selected for durability and long-term performance.

Components are machined using high-precision CNC and EDM processes, while fine details and micro features are carefully inspected and finished, often with the support of magnifying tools when extremely small tooling is required.

Tight tolerances are maintained throughout the process to ensure stable production and consistent part quality on micro injection moulding machines, even under high-volume manufacturing conditions.

Testing

To guarantee quality and safety, Idea Stampi performs internal mould testing and inspection before delivery. Testing is performed using our micro injection machines and presses, typically from 25T to 80T, with additional availability of 250T and 300T presses.

During mould testing we:

run first shots and verify mould opening/closing
check part dimensions, weight, and surface quality
record stable process parameters for your micro injection moulding machine

This in‑house validation ensures your micro mould is ready for production as soon as it reaches your facility.

Additional services beyond micro injection moulds

Apart from mould production for micro injection machines, Idea Stampi also offers prototyping and pre-series production services.

Prototyping is ideal for analysing and testing functionality, even where micro details can impact final performance and quality.
Pre-series moulding helps optimise the production cycle and ensures smoother industrialisation, with our technical support available when needed.

Are you looking for moulds for micro injection moulding machines?

Request a quote or send your technical drawing to get a fast evaluation.