Is micro injection molding the right manufacturing process for my part?

Our engineers evaluate your part geometry, material requirements, production volume, and functional requirements to determine whether micro injection molding is the most suitable manufacturing method.

Which materials are best suited for precision micro molded components?

Material selection depends on your application requirements, including dimensional stability, chemical resistance, temperature exposure, optical properties, and regulatory requirements. We help select the most suitable engineering polymer for each project.

Can you review my part before tooling?

Yes. Every project begins with a Design for Manufacturing (DFM) review to identify potential risks, improve manufacturability, optimize tooling, and reduce production costs before mold manufacturing starts.

Do I need a production mold for every project?

Not necessarily. Depending on project requirements, we can recommend prototype tooling, bridge tooling based on expected production volumes and product lifecycle.

Can you support both low- and high-volume production?

Yes. We support projects from prototype and pilot production to full-scale manufacturing. Our team helps determine the most cost-effective tooling and production strategy based on your expected volumes and long-term product roadmap.

What information do you need to prepare a quotation?

The fastest way to receive an accurate quotation is to provide a 3D CAD model, technical drawings (if available), material requirements, annual volumes, and any critical functional or cosmetic requirements.

Micro Injection Molding for Precision Plastic Components

Micro features. Thin walls. Tight tolerances. Custom micro injection molding from prototype validation to serial production.

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Quality & Manufacturing Standards

ISO 13485 Certified | ISO Class 8 Cleanroom | In-House Tooling | Precision Quality Control

Micromolding for High-Precision Components

Our micro injection molding process is designed to support consistent part quality from prototyping to high-volume production.

We combine advanced tooling, material expertise, and process control to achieve precise replication of micro-scale features and reliable performance across demanding applications.

Unlike conventional injection molding, micromolding requires particular attention to small feature replication, polymer flow, demolding, and dimensional measurement. These factors become critical when manufacturing components with miniature geometries and demanding functional requirements.

By combining precision micro injection mold tooling with controlled molding processes, we help customers transition from validated designs to repeatable production without unnecessary manufacturing complexity.

Micro features and wall thickness

Micro injection molding enables the replication of fine geometries that are not achievable using conventional injection molding.

Micro-scale molding capabilities:

Minimum wall thickness: 0.1 mm
Through-holes: down to Ø 0.01 mm
Micro features: down to 0.01 mm
Aspect ratios: up to 1:10

These values represent specialized micro-scale capabilities, not universal design limits. Achievable feature dimensions depend on geometry, material selection, tooling and molding conditions.

Early DFM assessment helps determine whether critical features can be replicated consistently and demolded without compromising part quality.

Micro injection molding tolerance control

Tolerance Control at Every Stage of Micro-Molding

Dimensional accuracy in micro injection molding depends on tooling precision, process stability, material consistency, and measurement uncertainty.

Illustrative tolerance contributors:

Tooling accuracy: ±4 µm

Molding process variation: ±10 µm

Material-related variation (lot and drying): ±2 µm

Optical metrology uncertainty: ±4 µm

Illustrative combined tolerance budget: ≈ ±20 µm

This conservative estimate combines manufacturing variation and measurement uncertainty. Metrology uncertainty is not additional part variation and must be evaluated separately when establishing acceptance criteria.

Actual achievable tolerances depend on component geometry, material properties, and validated process capability.

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Can We Mold Your Part?

Manufacturing miniature plastic components involves more than reducing part size. Complex 3D geometries, thin walls, micro-scale features and tight dimensional requirements demand specialized tooling and controlled injection molding processes.

Micromolds combines precision engineering, in-house mold manufacturing and micro injection molding to produce complex polymer components for medical, electronics and high-precision industrial applications.

Our capabilities support projects from early feasibility assessment and prototype validation through to repeatable serial production.

Is Your Part Outside These Limits?

Challenging geometries do not necessarily mean a design is unsuitable for micro molding.

Send us your CAD model and technical requirements. Our engineers can evaluate critical features, identify potential manufacturing constraints and recommend suitable tooling or design adjustments.

SEND US YOUR CAD

Optical Metrology for Micro Molding Quality Control

Measuring micro-scale features can be as challenging as manufacturing them. When dimensional requirements approach the limits of conventional measurement methods, reliable inspection becomes essential for assessing process stability and part consistency.

Optical metrology supports dimensional verification of complex micro-molded components and helps identify variations that may be difficult to evaluate using traditional contact measurement techniques.

Our Quality Control Activities Include:

Dimensional inspection during process validation and production
Monitoring consistency and repeatability of micro-molded parts
Verification of critical features against agreed design specifications
Evaluation of relevant geometrical and surface characteristics

Inspection methods and acceptance criteria are selected according to the component's geometry, material and dimensional requirements.

Our ISO 13485-certified quality management system supports a controlled approach to manufacturing and quality assurance.

Not Sure Whether Your Design Is Manufacturable?

Share your component requirements with our engineering team. We can help assess technical feasibility and identify the next steps toward production.

REQUEST A DESIGN REVIEW

In-House Micro Injection Mold Tooling

Accurate micro-scale components begin with tooling designed around the requirements of the final molded part.

At Micromolds, precision mold design, manufacturing and injection molding are integrated within the same engineering and production environment.

Our tooling capabilities include precision CNC machining, specialized mold inserts and selected microfabrication techniques for challenging component geometries.

Depending on project requirements, mold surface finishing may involve:

Precision polishing and electropolishing

Electrical discharge machining (EDM)

Sandblasting and surface texturing

Laser texturing for fine surface details

Tooling and molding conditions are evaluated together to improve cavity filling, microfeature replication, demolding and dimensional consistency.

This integrated approach also supports the selection of prototype, bridge or production tooling according to the project's technical and commercial requirements. Explore our precision injection mold tooling capabilities.

EXPLORE PRECISION TOOLING

Materials for Micro Injection Molding

Material selection influences the performance and manufacturability of micro-molded plastic components.

Polymer flow behavior, shrinkage, mechanical strength, dimensional stability and surface requirements must all be considered, particularly when manufacturing thin walls or complex microfeatures.

Our experience includes engineering and high-performance thermoplastics such as COC, COP, PMMA, PC, PEI (Ultem) and other polymers evaluated according to application requirements.

Material selection is guided by:

Dimensional stability and feature replication
Mechanical and thermal performance
Chemical resistance and environmental exposure
Optical properties and surface quality
Application-specific regulatory and quality requirements

Rather than applying a single material recommendation to every project, we evaluate the relationship between component design, polymer properties and the intended production process.

Explore our injection molding materials.

EXPLORE MATERIALS

Project Workflow

Upload CAD for micro component manufacturability evaluation

1. Upload a CAD File

Upload your CAD model and project requirements.

Design for manufacturing analysis and quotation

2. DFM Review & Quote

Receive feedback and a production quote.

Micro tooling and injection molding production process

3. Tooling & Production

Tooling preparation and injection molding begin.

Delivery of precision micro molded components

4. Delivery

Parts are produced, inspected and delivered.

Have a Project That Requires Precision Manufacturing?

Share your project requirements and any available drawings or specifications. Our engineers can discuss suitable tooling and micro injection molding solutions.

REQUEST A QUOTE