Editorial Technical Reference

Plastic Injection Molded Part

This page explains how Plastic Injection Molded Part is classified within Rubber and Plastic Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A custom plastic component produced by injection molding, used in various industries for precise, repeatable parts.

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Product Specifications

Technical details and manufacturing context for Plastic Injection Molded Part

Definition

Plastic injection molded parts are manufactured by injecting molten thermoplastic into a mold cavity, where it cools and solidifies into the desired shape. They are used across automotive, electronics, medical, consumer goods, and industrial applications. Parts are specified by material, dimensions, tolerances, and surface finish. Grades vary by material type (e.g., ABS, PC, nylon) and additive content (e.g., glass-filled for strength).

Working Principle

The process involves heating plastic pellets to a molten state, then injecting them under high pressure into a closed mold. The plastic fills the cavity and cools, taking the shape of the mold. After solidification, the mold opens and the part is ejected, yielding a high-precision, repeatable component.

Common Materials

ABS, Polycarbonate (PC), Nylon (PA6, PA66), Polypropylene (PP), Acrylic (PMMA), POM (Acetal), Glass-filled variants

Technical Parameters

Parameter	Typical range	Notes & selection driver
Part Dimensions	10–500 mm mm	Typical size range for injection molded parts
Wall Thickness	0.5–4.0 mm mm	Recommended range for uniform cooling
Tolerance (Standard)	±0.1 mm mm	Typical tolerance for general partsISO 2768-1
Tolerance (Precision)	±0.05 mm mm	Achievable with tight process controlISO 2768-2
Surface Roughness (Ra)	0.4–3.2 μm μm	Depends on mold finishISO 4287
Tensile Strength	20–100 MPa MPa	Varies with material and fillersASTM D638
Flexural Modulus	1–10 GPa GPa	Stiffness indicatorASTM D790
Heat Deflection Temperature (HDT)	50–200 °C °C	At 0.45 MPa loadASTM D648
Flammability Rating	HB–V-0 class	Depends on material and additivesUL 94
Mold Shrinkage	0.1–2.0 % %	Material-dependentISO 294-4
Operating Temperature Range	-40 to 120 °C °C	Typical for many thermoplastics
Density	0.9–1.6 g/cm³ g/cm³	Varies with material and fillersISO 1183
Water Absorption (24h)	0.01–0.5 % %	Important for dimensional stabilityISO 62
Impact Strength (Izod)	20–800 J/m J/m	Notched impact resistanceASTM D256
Color Options	Custom	Any color via masterbatch
Production Volume	1000–1000000 pcs pcs	Typical order quantities

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Plastic Injection Molded Part.

Published Manufacturer Relationships

Source-reviewed profile relationships currently associated with Plastic Injection Molded Part

Romtronic International Co., Limited

Dongguan, Guangdong, CN

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Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

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Inspection readiness

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Supplier transparency

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Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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