
One-stop partner from product development to production
Company overview, development history, and business philosophy
Management team and departmental function division
Factory equipment, research and development design, mold manufacturing, and injection molding capabilities
Quality control system and certification system
Smart home, personal care and other product case studies
HongKong HangFai industrial technology Co., Ltd. and Dongguan Hongqing Plastic Mold Products Co., Ltd. were established in 2000, located in Qiaotou Town, Dongguan City, Guangdong Province, with over 25 years of experience in mold design and manufacturing. The company has a factory area of over 10,000 square meters, a registered capital of 5 million yuan, and a liaison office in Hong Kong.
As a "one-stop" service provider, our business scope covers:
Product industrial design and rapid prototyping
Precision mold development and injection molding
Spray painting, silk screen printing, and surface treatment
Product assembly and packaging logistics
The company has obtained ISO 9001, ISO 14001, IATF 16949, and BSCI certifications to ensure quality and sustainable development.

Integrating product development, mold design, manufacturing, and assembly into one.
Provide customers with product lifecycle solutions
Reputation first, quality first, continuous improvement, excellent service
Upholding the spirit of craftsmanship, we are building a company that integrates modern product research and development, design, production, and assembly.
Our company has established a comprehensive organizational structure to ensure efficient collaboration among departments, providing seamless one-stop services for our clients.
Industrial design
Mechanical Design
Electronic Design
Prototype verification (3D printing, CNC machining, vacuum casting)
Mold design, full-chain mold manufacturing (wire cutting, CNC, EDM, etc.), mold assembly.
Over 80 units of 80–1,300T computer robotic injection molding machines, as well as 4 vertical and 7 two-color machines, etc.
Automated oil spraying production line, screen printing line, water transfer printing, UV printing
There are 2 clean room assembly lines and 3 standard assembly lines.
IQC → IPQC → FQC → OQC full-process quality control
Our company has advanced production equipment and a specialized production environment, ensuring efficient and precise production capabilities.






Our company has advanced production equipment and a specialized production environment, ensuring efficient and precise production capabilities.












Conduct creative brainstorming and plan discussions based on market demand and customer requirements.
Our industrial design team focuses on creating products that are both aesthetically pleasing and practical. Through comprehensive market research and user analysis, we provide customized design solutions.
In structural design, our goal is to ensure product stability, reliability, and manufacturability. Our designs focus on functionality while considering material costs and production efficiency.
Our electronic design services cover everything from circuit design to embedded system development, ensuring products achieve optimal performance, reliability, and cost efficiency.
A multidisciplinary professional team composed of industrial designers, mechanical engineers, electronic engineers, and structural engineers.
Conduct ID appearance design, electronic/structural design, use CAD/CAE software for DFM and mold flow analysis, perform thermal fluid/structural FEA analysis.

Our rapid prototyping capability allows customers to validate design concepts in the shortest time, accelerate time to market, and reduce development risks.
Our technical team has over 25 years of experience in mold optimization, offering professional polishing texture processing, mold testing, and debugging services to ensure mold quality and production efficiency.


80-1,300 ton injection molding machines such as Sumitomo
Suitable for special molding process requirements
Achieve two-color, dual-material injection molding
All injection molding machines are equipped with robotic arms.
Our injection molding workshop is equipped with automated robotic arms that monitor key parameters such as temperature, pressure, and injection weight in real-time to ensure production stability and product quality.
Equipped with 4 robotic arms for fully automatic spraying and 2 spray booths, electronic temperature-controlled ovens, and several professional spraying technicians and full inspection QC. Capable of spraying conductive paint on products up to 1.2 meters by 0.8 meters.
Equipped with six-color rotary pad printing machines, 28 two-color and single-color pad printing machines, 6 fully automatic screen printing machines, 1 laser engraving machine, and strong professional expertise...
Provides scratch-resistant, wear-resistant, high-gloss surface treatment to enhance product texture and durability.



Equipped with an air shower room and a clean assembly line, suitable for the assembly of precision products in electronics, medical, optical, and other fields, completely isolating pollution to ensure the products are clean and flawless.
Implement process mistake-proofing and 5S management in the assembly area to ensure high production efficiency and product reliability, reducing human errors. Each workstation is equipped with detailed work instructions to ensure standardized operations.
Incoming quality control to ensure raw materials and components meet standards.
Process quality control, monitoring various parameters during the production process.
Finished product quality control, inspection of product function and appearance
Quality control of shipments to ensure that the products delivered meet customer requirements.
Our quality management system has passed multiple international certifications:
Including mold designers, product structure and electronic engineers, etc.
Including injection molding operators, painting technicians, assembly personnel, etc.
Responsible for quality control of raw materials, processes, and finished products.
Including business, administrative, financial, and other support teams

We prioritize employee training and skill enhancement, regularly conducting internal technical exchanges and external professional training to build a learning-oriented organization. The culture of teamwork is deeply embedded in the company's DNA, ensuring seamless collaboration across departments to provide the best service experience for customers.
From creative concept to mass production, we provide a full-process one-stop development service.
Provide industrial design solutions based on customer needs, including appearance design, structural design, and functional planning.
Deliver a functional prototype in a short time for design verification and functional testing, and quickly iterate for optimization.
Design and manufacture high-precision molds to ensure product dimensional accuracy and surface quality.
Conduct small-scale production validation, optimize process parameters, identify and solve potential issues.
Mass production, strict quality control, timely delivery of products that meet requirements.





We have flexible production capabilities, able to meet demands from small batches to large-scale mass production, and have accumulated extensive experience in various industries such as smart home, consumer electronics, and medical devices.


Sound wave, sound wave sweeping vibration, hollow cup, rotary and servo motor-driven electric toothbrush series
Cleaning mode options suitable for different oral conditions
Convenient wireless charging pad, or mainstream Type-C charging port
A single charge can last up to 90 days
Can be implemented according to customer requirements
The toothbrush connects to a mobile app to record oral health data, pressure sensing, tooth area detection, etc.


Multi-level water pressure adjustable to meet different cleaning needs.
Standard, soft, pulse, and other modes
300ml capacity design, reduces the need for frequent refilling.
A single charge can last for more than 15 days.
The product's appearance is combined with ergonomic design, providing a comfortable grip and convenient operation. It uses food-grade safe materials to ensure safety when in contact with the mouth. The connection between the water tank and the main unit employs precision injection molding technology to ensure leak-proof performance. With a waterproof rating of IPX7, the entire machine can be washed.
Our water flosser products have passed rigorous medical device standard tests, ensuring quality while offering competitive prices, and have been successfully exported to multiple countries in Europe and America.

The shell is made of high flame-retardant PC material through injection molding, and the buttons use two-color injection molding technology to enhance the feel and durability. The internal structure is optimally designed to ensure easy installation and reliable electrical connections. The surface is treated with a UV coating to improve wear resistance and anti-aging performance.
Timer switch series products are widely used in scenarios such as home appliance control, irrigation systems, and commercial equipment, and are an important component of smart home systems.

Supports Wi-Fi/Bluetooth connection, can control lighting through mobile app or voice assistant.
Made with high flame-retardant materials through injection molding, ensuring safety and durability.
The internal injection molding structure is precisely designed to ensure stable installation and reliable use.
Complies with international safety standards, smart dimming function saves energy consumption.
Our smart switch series products are manufactured using precision molds, featuring a modern and minimalist design that perfectly integrates with various home styles. The products undergo rigorous safety testing and reliability verification to ensure long-term stable operation.
Stable signal, strong wall penetration, can be equipped with multiple receivers, suitable for large residential units.
Traditional stable solution, easy to install, suitable for new house renovation and simultaneous wiring.

The casing is made of impact-resistant engineering plastic with a non-slip surface treatment for a comfortable grip. The motor mounting structure uses a shock-absorbing design to effectively reduce vibration. The switch is designed to be waterproof to prevent water ingress during cleaning. The battery compartment uses a double-seal structure to ensure safety and reliability.
The brush pen is a professional product we developed to meet the needs of the European and American beauty markets. It combines precision electronics with user-friendly design, providing users with a safe and convenient trimming tool. It has received widespread acclaim outside the European and American markets.

Spacious interior space, suitable for cats of all sizes.
Effectively control odor diffusion
Modular design, easy to disassemble and clean, simple maintenance.
Our litter box product series starts from pet behavior habits, combined with a humanized design concept, providing convenient and hygienic solutions for cats and their owners.
25 years of industry experience, over 10,000 square meters of factory space, more than 90 injection molding machines, ensuring large-scale efficient production.
From design, prototyping, and mold making to injection molding, surface treatment, and assembly, a full-process service to simplify your supply chain management.
An experienced design and engineering team provides professional technical support and innovative solutions.
A comprehensive quality management system and advanced testing equipment ensure product quality and reliability.
Address:No. 450, Industrial Road, Lingtou Village, Qiaotou Town, Dongguan City, Guangdong Province
Address:UNIT 6 8/F, Tower B 83 King Lam Street, Lai Chi Kok, Hong Kong SAR
Mail:info@hungfaitech.com
Join hands, create the future