Simblong - Professional Plastic Injection Molding Manufacturer Since 2012

Selected product applications

Custom Plastic Injection Molding Products

As a leading injection molding manufacturer, Simblong produces custom plastic injection molding that helps established brands and emerging hardware innovators bring product from concept to scalable production.

Precision Housings for Smart Personal‑Care Appliances

Power Bank Shell | Gradient Spray & Vacuum Plating Custom Molding

PC Wafer Packaging Box | Custom Semiconductor Packaging

Electronic Molded Parts | Printing & Laser Engraving Services

Precision Source Manufacturing: Smart Desktop Air Purifier

RF EMS Facial Massager | Hot-Cold Skincare Beauty Instrument

Smart Constant‑Temp High‑Speed Hair Dryer | Ultra‑Fast Drying

Smart Pet Feeder | Healthy Pet Diet, Integrated Manufacturing

Smart Sensor Soap Dispenser | Minimalist, Contact‑less Hygiene

High-Precision Multi-Cavity Pump Head Injection Mold

High‑Precision Hair Dryer Housing & Structural Part Molds

Insert Overmolding Solutions | Multi‑Component Insert Molding

High-Precision Power Tool Handle 2-Shot Injection Mold

High‑Precision Printer Housing & Large Structural Plastic Molds

Centrifugal Impeller | Industrial & Premium Appliance Components

IATF 16949 Automotive Plastic Molding | Custom OEM/ODM Auto Parts

Industrial Handheld Enclosure | Hard‑Soft Plastic Overmolding

Semiconductor CPU Display Case | High‑Translucency Packaging

Keg Dispensing Valve Cap | High‑Seal ABS/HDPE Dual‑Material Valve

Ventilated ABS Router Housing | Home & Industrial Network Shell

Smart Robot Vacuum Charging Dock | OEM/ODM, Assembly Services

High‑Speed Brushless Motor Blower Assembly | Anti‑Vibration Molding

Robot Vacuum Shell & Chassis Flame‑Retardant PC/ABS Molding

Precision Camera Housing | Custom Molding & Airtight Test

Six Key advantages

Single-Point Project Management

One accountable project team coordinates engineering, mold development, manufacturing, quality and delivery—reducing the complexity of managing multiple suppliers.

DFMA-Led Risk Reduction

We evaluate structure, materials, tooling, finishing, assembly and packaging early—reducing costly changes, rework and launch delays.

Integrated Product Engineering

Our structural and electronic engineers
collaborate with manufacturing teams to turn
product concepts into practical, production-
ready solutions.

Strict Cleanliness Requirements

Our class 100,000 clean-room injection molding workshop meets the stringent cleanliness requirements for medical,optical,and eletronic components

Scalable & Quality-Controlled Production

More than 80 injection molding machines, automated surface-finishing lines, six assembly lines, documented quality controls, and an 800 m² Class 100,000 cleanroom support consistent production and reliable scale-up.

Long-Term Tooling & Production Support

Routine mold maintenance, process optimization, engineering changes, and ongoing production support help reduce downtime and maintain consistent part quality throughout the product lifecycle.

capabilities

End-to-End Product Development & Manufacturing capabilities

From plastic injection molding product engineering and DFMA to molding, finishing, assembly and packaging validation,

we provide coordinated support from concept to scalable production.

Product Engineering & DFMA

Early engineering involvement helps identify manufacturing risks before tooling begins. Our team reviews product structure, materials, tolerances, molding, finishing and assembly requirements to improve manufacturing readiness and reduce downstream changes.

DFMA report

Key manufacturing risk list

Design improvement recommendations

Preliminary tooling and manufacturing plan

Mold Design & In-House Manufacturing

From mold design and DFMA to precision machining, mold assembly, trials and validation, our in-house tooling team controls every critical step to deliver reliable molds, consistent part quality and stable volume production.

Mold Design & DFMA

Precision Machining & Toolmaking

Mold Assembly & Fitting

In-Process Quality Inspection

Tool Trials & Validation

Production Support & Maintenance

Scalable Injection Molding Services

With 80+ injection molding machines, Class 100,000 cleanroom capability and experienced process teams, we deliver consistent plastic components from trial runs to volume production for beauty, personal care, medical and innovative hardware applications.

80+ Machines & Scalable Capacity

Class 100,000 Cleanroom Molding

Material & Process Expertise

Quality Control & Traceability

Integrated Surface Finishing & Decorative Printing

Our surface finishing services integrate two automated spray painting lines with silk screen printing, pad printing and decorative marking. We deliver consistent color, texture, logos and graphics for plastic components, supported by controlled processes, appearance inspection and coating performance validation from pilot runs to volume production.

Two Automated Spray Painting Lines

Coating Types & Visual Effects

Silk Screen & Pad Printing

Color, Alignment & Appearance Control

Coating & Printing Validation

Finishing-to-Assembly Integration

Finished Product Assembly & Testing

With six assembly lines and integrated engineering support, we combine molded components, electronics and hardware into finished products. From pilot builds and functional testing to final packaging and batch traceability, we support consistent and reliable volume production.

Engineering & NPI Support

Six Assembly Lines & Flexible Capacity

Component Sourcing & Integration

Standardized Assembly Processes

Functional Testing & Quality Control

Packaging & Batch Traceability

Packaging Validation

Packaging validation helps reduce the risk of product damage during handling and transportation. We review the packaging method, perform drop and transportation simulation tests, analyze issues and verify improvements before shipment.

Packaging Review

Carton Drop Testing

Transportation Simulation

Improvement & Revalidation

Shipment Traceability

service

Customized service introduction

We are a globally recognized one-Stop Solution Partner for Precision Mold & Injection Molding.From precision mold development, injection molding, to final assembly, packaging, and logistics. We handle the complexity so you can focus on your market.

Mold Design & In-House Manufacturing

Mold Design & DFMA

Precision Machining & Toolmaking

Mold Assembly & Fitting

In-Process Quality Inspection

Tool Trials & Validation

Production Support & Maintenance

Scalable Injection Molding Services

80+ Machines & Scalable Capacity

Class 100,000 Cleanroom Molding

Material & Process Expertise

Quality Control & Traceability

Finished Product Assembly & Testing

Engineering & NPI Support

Six Assembly Lines & Flexible Capacity

Component Sourcing & Integration

Standardized Assembly Processes

Functional Testing & Quality Control

Packaging & Batch Traceability

Integrated Surface Finishing & Decorative Printing

Two Automated Spray Painting Lines

Coating Types & Visual Effects

Silk Screen & Pad Printing

Color, Alignment & Appearance Control

Coating & Printing Validation

Finishing-to-Assembly Integration

Product Engineering & DFMA

DFMA report
Key manufacturing risk list
Design improvement recommendations
Preliminary tooling and manufacturing plan

Packaging Validation

Packaging Review

Carton Drop Testing

Transportation Simulation

Improvement & Revalidation

Shipment Traceability

industry

Industries & Plastic Injection Molding Product Applications

With deep expertise in hair care, beauty and personal care products, we also support smart home, medical, consumer electronics and innovative hardware applications from product engineering to scalable manufacturing.

Hair Care & Styling Products

Beauty & Personal Care Devices

Smart Home & Appliances

Medical & Healthcare Devices

Consumer Electronics

Innovative Hardware

About Simblong

Built for Product Realization at Scale

Since 2012, Simblong injection molding manufacturer has helped established brands and emerging hardware innovators turn product concepts into scalable products through integrated engineering and manufacturing. Our capabilities cover product engineering, mold design and manufacturing, injection molding, surface finishing, assembly, testing and packaging validation.

Refer to our factory now

18+

With 18 years of experience

500+

Company members

20+

Sold to 20 countries worldwide

18000㎡

Factory 18000 square meters

Brands

Brands we have supported

Selected Brands & Partners We Have Supported From established global brands to emerging hardware innovators, we have supported product development and manufacturing programs across beauty, personal care, consumer electronics, home appliances and other applications.

Brand names and logos are shown for project-reference purposes only. All trademarks belong to their respective owners.

ISO 13485 — Medical Devices Quality Management System

IATF 16949 — Automotive Quality Management System

ISO 9001 — Quality Management System

ISO 14001 — Environmental Management System

Quality systems

Certified Management Systems & Quality Assurance

Our certified management systems, documented process controls and traceability practices support consistent product quality and reliable delivery from product development through volume production. Certification details are maintained according to the applicable site, scope and validity period.

Incoming Material Inspection

First Article & New Product Validation

In-Process Quality Control

Final Inspection & Batch Traceability

Alcoho lRubTest

Balance Test

CCM

Halogen Test

Hardness Test

Microscope

Sealing Test

Vision Measuring Machine

Latest News

Whether you need automotive, medical, or industrial plastic parts, you can rely on our certified quality system.

AGIC 2026 Opens in Shenzhen, Spotlighting Commercial AI and Robotics

August 27, 2026 | Industry NewsThe 2026 AGIC Shenzhen International General Artificial Intelligence Industry Expo and GERX Global Embodied AI Robotics Industry Expo opened on August 26 at the Shenzhen World Exhibition & Convention Center in Bao’an, bringing together technology suppliers and international buyers.

2026 09 03

Managing Cost Fluctuations in Copper, PCBA, and Plastic Resins | OEM Supply Chain Insights

A practical analysis of price movements across copper, PCB assemblies, and polymer resins, paired with cost-engineering strategies for global hardware manufacturers.

2026 09 03

CHINAPLAS Guide: Key Innovations in Tooling, Injection Molding & Sustainable Resins

An industry overview of the upcoming CHINAPLAS exhibition, highlighting multi-shot molding, automated workcells, high-performance polymers, and circular manufacturing.

2026 09 03

EU PPWR Packaging Regulations Guide for Manufacturing & Hardware Exporters

Key takeaways from the EU Packaging and Packaging Waste Regulation (PPWR) for global manufacturers: recyclability, PCR content thresholds, EPR, and eco-design strategies.

2026 09 03

Ready to Bring Your Product to Scale?

Whether you need a single manufacturing process or a fully integrated program, our engineering and manufacturing teams are ready to support your next project.

From Product Engineering to Scalable Manufacturing.

Since 2012, Simblong injection molding manufacturer has supported established brands and emerging hardware innovators with integrated product engineering and flexible manufacturing—from precision injection-molded and surface-finished components to subassemblies and fully assembled products.

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Info Center

Add

Add: No. 4, Wanan Road, Zhenan Industry Park, Changan Town, Dongguan City, Guangdong Province China

Contact person: Spencer Chen

Tel: +86-134 2864 0022

Email: spencer@simblong.com