ABOUT US
Custom Plastic Injection Molding & Integrated Manufacturing
ABOUT DONGGUAN HENGMEI PLASTIC PRODUCTS
We provide integrated manufacturing support from product development and precision mold making to injection molding, secondary processing, surface finishing, assembly, inspection and export delivery.
6000+ m²
Modern Manufacturing Facility
29 Sets
Injection Molding Machines
60–450T
Flexible Injection Capacity
ISO 9001
Quality Management System
WHO WE ARE
Dongguan Hengmei Plastic Products Co., Ltd. is a professional manufacturer specializing in custom injection molding, plastic mold development and precision plastic component production.
Our integrated manufacturing services cover product development, DFM review, mold design and manufacturing, injection molding, CNC processing, secondary operations, surface finishing, assembly, inspection and packaging.
Hengmei products are widely used in automotive interiors, medical equipment, household appliances, consumer electronics, audio equipment and industrial applications.
With responsive engineering support, flexible molding capacity and strict quality management, we help global customers turn product concepts into reliable, production-ready plastic components.
Product Development & DFM Review
Precision Mold Manufacturing
Injection Molding & CNC Processing
Finishing, Assembly & Packaging
Integrated mold, injection molding, secondary processing and project management capabilities.
CORE MANUFACTURING STRENGTH
From early-stage engineering and mold development to stable mass production and finishing, Hengmei coordinates every manufacturing stage through one integrated project workflow.
Mold Design & Manufacturing
Precision mold engineering, machining, trial molding, mold adjustment and maintenance support reliable long-term production.
Flexible Injection Capacity
29 injection molding machines from 60 to 450 tons support sampling, flexible batch production and stable mass manufacturing.
Secondary Processing & Finishing
CNC machining, ultrasonic welding, hot melting, electroplating, painting, printing and other processes improve function and appearance.
Quality & Project Management
Incoming, in-process and final inspections are coordinated with project scheduling, progress updates and export delivery management.
CUSTOMIZATION PROCESS
A clear six-step process helps move each custom plastic project from technical evaluation to validated samples and stable delivery.
01
Requirement Analysis
Confirm drawings, samples, product application, materials, appearance, quantities and delivery requirements.
02
Engineering & DFM Review
Evaluate product structure, wall thickness, draft angles, assembly relationships and molding feasibility.
03
Mold Manufacturing
Complete mold design, precision machining, fitting and assembly according to confirmed production requirements.
04
Trial Molding & Validation
Produce initial samples and inspect dimensions, appearance, assembly fit and functional performance.
05
Mass Production
Schedule suitable injection equipment and control process parameters to maintain consistent batch quality.
06
Finishing & Delivery
Complete finishing, assembly, final inspection, labeling, export packaging and shipment coordination.
QUALITY & SERVICE
Hengmei focuses on stable dimensions, consistent appearance, reliable assembly and controlled production throughout every custom project.
Incoming Material Inspection
Materials and purchased components are checked against project specifications before production.
In-Process Quality Control
Molding parameters, dimensions, appearance and assembly performance are monitored during production.
Final Inspection & Traceability
Final products are checked before packaging, with production records maintained for project follow-up.
OEM / ODM
Development support based on product concepts, drawings, 3D files and physical samples.
Surface Finishing
Electroplating, painting, printing and decorative finishing for improved appearance and product value.
Transparent Molding
Clear covers, containers and functional transparent components with controlled visual quality.
Assembly & Packaging
Component assembly, functional checks, labeling and export packaging simplify final delivery.
APPLICATION SOLUTIONS
Our plastic manufacturing capabilities support applications requiring stable structure, precise fit, consistent appearance and dependable batch production.
Automotive Interior Components
Speaker grilles, interior trim, brackets and structural plastic parts requiring stable texture and assembly accuracy.
Medical Device Plastic Parts
Housings, handles, connectors and internal components designed for clean appearance and reliable dimensional fit.
Household Appliance Housings
Outer shells, control panels, ventilation structures and internal supports for household and compact equipment.
Electronics & Industrial Parts
Plastic housings and functional parts for audio equipment, electronics, printers and industrial products.
