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Plastic Injection Molding

Plastic Injection Molding

Dimensional stability, functional performance, and OEM production readiness for engineering-grade plastic components.

Overview

We provide injection molding services for engineering components with reliable dimensional performance, material integrity, and assembly fit.

This makes our process suitable for consumer electronics, industrial parts, household products, and fluid/valve components.

Plastic injection molding

Engineering Focus

Our molding process prioritizes:

Dimensional stability

Shrinkage control

Wall thickness & cooling optimization

Snap-fit & functional features

Seal & overmold fit

Material flow & mechanical performance

Tooling repeatability & cycle stability

This ensures parts perform correctly in downstream assembly and operation.

Plastics materials and finishing options

Material Options

We work with a wide range of plastics including:

ABS / PC / PP / PA / POM

PMMA / PS / TPE / TPU

PC+ABS

Glass fiber reinforced materials

Engineering plastics upon request

Material selection support is available for strength, modulus, impact resistance, sealing, and temperature requirements.

Typical Part Types

Suitable for:

✔ Consumer electronic housings & structures

✔ Household & consumer goods

✔ Industrial functional components

✔ Fluid & valve components (with TPE/TPU sealing)

Tolerance & Stability

Typical dimensional capability: ±0.01mm (geometry & resin dependent)

Supports tight tolerance areas for:

Snap-fit features

Seal interfaces

Bearing/rotational zones

Assembly fit surfaces

Overmolding & Multi-Material

We support:

Overmolding

Insert molding

TPE/TPU sealing

PC + ABS housings

Metal inserts & threaded inserts

Surface & Finishing Options

Functional-level surface finishes available:

Matte / Texture

Polished / Semi-polished

Mold texture (MT/VDI/Custom)

Laser marking

Printing & labeling

Machine Tonnage

Injection molding machines: 20T – 680T

Suitable for small and mid-size components across consumer and industrial applications.

Prototype to Production

We support flexible production modes:

Prototype shots

Bridge production

Mass production

Short-run & low-volume OEM production

This reduces program risk and supports early-stage validation (EVT/DVT/PVT).

Assembly Compatibility

Parts can be supplied with:

Inserts

Overmold

Post-machining

Packaging for assembly

OEM labeling & barcodes

Quality & Verification

Inspection capability includes:

Dimensional inspection

Functional fit checks

Surface & cosmetic checks

Assembly compatibility tests

PPAP/FAI available for OEM customers.

Injection molding quality control and verification

Injection molded connector parts

Industries Served

Consumer electronics

Industrial equipment

Home & consumer goods

Fluid and valve systems

Get a Quote

Send your drawings (STEP/STP/IGS/PDF) for a quick evaluation of cost, lead time, and material suitability.

→ Upload Drawings / Request a Quote

Let's Discuss Your Needs

Get a free quote and sample kit. Heyuexin Technology offers a very broad range of manufacturing capabilities and support both one-off prototyping and low-volume production.

What can I expect?

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Contact Us:paulchen@heyuexinmolds.com

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