Custom Injection Molded Plastic Parts

Custom injection molded plastic parts are widely used for high-precision, complex, and large-volume plastic components in consumer products, electronics, automotive, medical, and industrial applications.

HuaShuo provides custom injection molded plastic parts with stable quality, tight tolerances, and scalable production. Contact us today to get a fast and free quote.

ISO 9001:2015, CE
T1 sample as fast as 2 weeks
No minimums

What Are Custom Injection-Molded Plastic Parts?

Custom injection-molded plastic parts refer to plastic components developed through targeted mold design and mass production using injection molding processes, based on the customer’s provided product drawings, structural designs, and functional requirements.

HuaShuo specializes in serving the automotive, medical, electronics, and industrial equipment sectors. Contact us for high-quality custom injection molded plastic parts.

What Are Custom Injection-Molded Plastic Parts

Custom Injection Molded Plastic Parts Manufacturing Capabilities

HuaShuo possesses comprehensive injection molding production capabilities ranging from small precision parts to large structural components, supporting multi-cavity molds and automated mass production.

Small Precision Plastic Parts

Suitable for electronic connectors, sensor housings, and precision functional assemblies. Supports strict dimensional control for high-precision engineering applications.

Small-to-Medium Structural Plastic Parts

Ideal for consumer electronics enclosures, industrial equipment housings, and functional structural components. Balances structural strength with dimensional stability for small-to-medium plastic part production.

Multi-Cavity Mold Mass-Produced Parts

Supports multi-cavity and family mold designs, significantly boosting production efficiency while reducing per-unit costs.

Custom Injection Molded Plastic Parts Applications

HuaShuo possesses years of experience in manufacturing custom injection molded products, providing plastic component manufacturing services across multiple industries. Contact us today to begin your product development journey.

Automotive Injection Molded Plastic Parts

Including connectors, sensor housings, clips, brackets, and other components, meeting the automotive industry’s high reliability standards.

Medical Injection Molded Plastic Parts

Including device housings, disposable components, precision plastic parts, supporting clean production environments.

Consumer Electronics Injection Molded Plastic Parts

Including phone cases, plastic covers, internal structural components, etc., supporting high aesthetic quality requirements.

Industrial Equipment Injection Molded Plastic Parts

Including gears, brackets, functional components, etc., suitable for industrial automation equipment.

Home Appliance Plastic Parts

Including control panel covers, appliance enclosures, and more, supporting high-level integration of aesthetics and functionality in design.

Plastic injection-molded parts for household consumer goods

Includes small appliance housings, kitchen plastics, and structural components for daily necessities, suitable for high-volume consumer goods production.

Available Plastic Material Types

HuaShuo supports multiple plastic materials and performance options tailored to diverse application scenarios and requirements. Contact us for material recommendations best suited to your product.

Engineering Plastics

ABS
PC
POM
PC/ABS Alloy
PA / Nylon

General-Purpose Plastics

PP
PE
HDPE
PS
PVC

High-Performance Plastics

PEEK
PPS
LCP
PEI
PTFE

Custom Injection Molded Plastic Parts Case Studies

HuaShuo possesses extensive experience in product manufacturing. Below are examples showcasing our custom injection-molded plastic parts.

Consumer Electronics Plastic Housing

Application Industry: Consumer Electronics
Material: ABS / PC / PC-ABS
Surface Treatment: Spray Coating, Silk Screen Printing, Laser Marking
Key Features: High aesthetic appearance, customizable colors and logos, tight assembly tolerance

Consumer Product Plastic Parts

Application Industry: Consumer Goods
Material: ABS / PP / TPE
Features: Cost-effective, suitable for high-volume production, good surface finish

Automotive Sensor & Electronic Housing

Application Industry: Automotive Electronics
Material: PA66-GF, PBT-GF
Features: High heat resistance, high mechanical strength, chemical resistance

Medical Device Plastic Housing

Application Industry: Medical
Material: PC / ABS
Features: High aesthetic quality, clean production environment, biocompatible material options available

Precision Electronic Connector Components

Application Industry: Electronics
Material: PBT / PA / PC
Tolerance: ±0.05 mm
Features: High dimensional accuracy, excellent electrical insulation

Industrial Equipment Structural Plastic Components

Application Industry: Industrial Equipment
Material: POM / Nylon
Features: High strength, wear resistance, low friction, suitable for mechanical assemblies

Production Capacity

The table below details the specifications and parameters of our custom plastic parts, helping you quickly understand our injection molding capabilities.

Service	Customized Plastic Injection Molding
Maximum Part Size	400 × 400 × 250 mm
Minimum Part Size	5 × 5 × 5 mm
Part to Part Repeatability	+/- 0.05 mm
Mould cavity	One cavity, multi-cavity or same different products be made together
Available Mold Types	Steel (S136, P20, NAK80) and Aluminum molds; Production levels from 1,000 to 1,000,000+ shots
Mold Cavity Tolerances	+/- 0.01 mm
Producing Process	Audit drawings – mold flow analysis – design validation – Custom Materials – mold processing – core processing – electrode
	machining – Runner system processing – parts processing and procurement – machining acceptance – cavity surface treatment process
	– complex mode Die – The entire mold surface coating – Mounting plate – mold sample – sample test – sending samples
Mould material	P20,2738,2344,718,S136,8407,NAK80,SKD61,H13
Runner system	Hot runner and cold runner
Base material	P20,2738,2344,718,S136,8407,NAK80,SKD61,H13
Secondary Operations	Texturing (MT/VDI), pad printing, laser engraving, ultrasonic welding, threaded inserts, and assembly
Undercuts	Lifters, Sliders, Y-type, and L-type undercuts
Main thechnology	Milling, grinding, CNC, EDM, wire cutting, carving, EDM, lathes, surface Finish, etc.
Software	CAD,PRO-E,UG Design Time: 1-3 days (normal circumstances)
Product material	ABS,PP,PC,PA6,PA66,TPU,POM,PBT,PVC,HIPS,PMMA,TPE,PC/ABS, TPV, TPO,T PR,EVA,HDPE,LDPE,CPVC,PVDF,PPSU.PPS.
Quality system	ISO 9001:2015
Equipment	CNC,EDM,Cutting off Machine,plastic machinery,etc
Establish time	15 to 45 working days

Surface Finish & Secondary Operations

HuaShuo offers comprehensive post-processing capabilities to achieve virtually any desired effect for your products. Upload your creative ideas today!

Mold Surface Finish (SPI Standard)

Supports SPI A1–D3 polishing grades and VDI, MT mold texture standards, meeting the requirements for high-gloss cosmetic parts and industrial functional components.

SPI Grade	Surface Appearance	Typical Applications
SPI A1	Mirror polish (diamond buff)	Optical components, lenses, transparent parts
SPI A2	High gloss polish	Consumer electronics housings, cosmetic parts
SPI B3	Semi-matte / fine sand finish	Consumer products, industrial enclosures
SPI D3	Textured / leather grain	Anti-slip housings, grips, handheld devices

Secondary Finishing Services

HuaShuo offers a variety of customized secondary processing services, with the following six being common treatment processes.

Painting & Coating

Color and texture customization

Plating & Metallization

Chrome/Nickel metallic finish

Silk Screen / Pad Printing

Logo and markings

Laser Marking

Permanent engraving

Assembly

Screw fastening and kitting

CNC Secondary Machining

Drilling and tapping

Why choose HuaShuo for custom injection molded Plastic parts manufacturing?

High-Quality Parts

We employ a rigorous quality control system and precision injection molding equipment to ensure every part meets international high standards for dimensional accuracy, appearance, and performance.

Rapid Delivery

Through efficient production processes and mature supply chain management, we shorten production cycles—completing orders in as little as 14 days—helping clients accelerate product launches.

Engineering Team Support

With over a decade of industry expertise, our engineering team provides end-to-end technical support—from material selection and mold design to mass production optimization—ensuring smooth and efficient project execution.

Custom Plastic Injection Molding Services

faqs

What are custom injection molded plastic parts?

Custom injection molded plastic parts are plastic components manufactured through injection molding based on a customer’s product design drawings, material specifications, tolerances, and surface finish requirements. Unlike standard off-the-shelf parts, custom injection-molded components are typically used in specific applications such as electronic enclosures, automotive parts, industrial structural components, and medical device assemblies. Injection molding enables high-repeatability, high-precision, and high-efficiency mass production.

What is the minimum order quantity for custom injection-molded plastic parts?

The minimum order quantity depends on the mold type and material. HuaShuo supports everything from small-batch prototyping to large-scale mass production. Prototype molds typically start from dozens to hundreds of pieces, while production molds are suitable for stable manufacturing of thousands to tens of thousands of units.

What is the production cycle for custom injection-molded parts?

The mold manufacturing cycle typically ranges from 2 to 6 weeks. Once the mold is completed, the batch production cycle generally takes 3 to 10 days. For rapid prototyping projects, HuaShuo offers rapid tooling and expedited production services.

Do you provide DFM design optimization support?

Yes, we offer mold design, mold flow analysis, and Design for Manufacturability (DFM) evaluations to help customers optimize product structures, reduce defects, and lower mold and production costs.

What are the maximum dimensions for injection-molded parts you can produce?

We specialize in high-precision injection-molded plastic parts with dimensions not exceeding 400 × 400 × 150 mm. This size range is ideal for electronic device enclosures, sensor housings, structural brackets, and industrial functional components. For larger parts, we can assess feasibility and propose alternative manufacturing solutions.

How to obtain a quote for custom injection-molded parts?

Customers may submit 3D drawings and technical specifications, and we will provide a professional evaluation and quotation proposal.

Request a Quote

From mold design to mass production, we offer end-to-end solutions.

Tell us about your application, materials, and volume requirements. Our team will recommend the right process and deliver a tailored manufacturing solution.