Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere responsibility; it is fueled by a fervent passion for the artful craftsmanship and intricate science that define precision manufacturing. Our unparalleled expertise shines as a beacon in the domain of high-end component fabrication, guiding the way towards exceptional precision and excellence. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, adeptly addressing diverse applications, including:
- Medical and Biotech: Providing meticulously engineered high-precision components and cutting-edge solutions for advanced medical devices, ensuring the highest standards of quality and innovation.
- Semiconductors: Enhancing chip production and its related equipment by supplying essential core components that are pivotal to the industry's thriving success.
- New Energy: Actively participating in the dynamic and sustainable advancement of innovative energy equipment, driving forward eco-friendly technological developments.
- Automotive: Delivering essential components that drive innovation within the automotive sector, supporting the progression of smart and electric vehicles.
Main Products
- We excel in the production of non-standard customized components, extensively supporting the medical, automation, semiconductor, and automotive industries, guaranteeing unrivaled precision and supreme quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This dedication positions us as pioneers in the realm of precision engineering, where our commitment to excellence is unmatched.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Premier Examination of Incoming Materials
Each raw material that enters our domain is meticulously scrutinized, undergoing an exhaustive and stringent analysis process. Our comprehensive assessments delve into both the chemical composition and the thorough examination of physical attributes. We remain steadfast in our dedication to quality by mandating that every supplier furnishes a Certificate of Origin coupled with a stamped Declaration of Conformity. This protocol ensures that only the most superior materials are curated for our high-precision medical machining services. Our rigorous authentication guarantees that these materials adhere to the highest standards of integrity and purity, harmonizing seamlessly with our unwavering commitment to delivering unparalleled quality.
Robust In-Process Quality Assurance
Throughout our sophisticated and precise machining processes, each component is meticulously examined to ensure its dimensions and tolerances not only meet but exceed our demanding specifications. Our diligent, ongoing inspection protocol is intricately crafted to identify and address potential defects at the earliest stage. This preemptive approach effectively prevents non-conforming parts from advancing through subsequent phases. Such vigilance is vital in reducing the risk of inferior products, consistently ensuring superior quality at every juncture of production and perpetuating excellence across the entire process.
Strategic Implementation of First Article Inspection (FAI)
Our First Article Inspection (FAI) process is strategically designed as a foundational framework crucial for early identification and resolution of potential production hurdles. This forward-thinking approach effectively prevents complications from proliferating into mass production. The exhaustive and precise nature of our FAI process is indispensable in mitigating quality risks, ensuring our products consistently achieve and surpass the zenith of industry standards. Our commitment to excellence permeates every facet of the production cycle, ensuring we meet and exceed the most stringent quality benchmarks.
Thorough Comprehensive Final Inspection
Before any product departs from our state-of-the-art facility, it undergoes a meticulous and comprehensive final inspection. This thorough examination rigorously assesses dimensions, visual aesthetics, performance, and any bespoke customer requirements. Our exhaustive inspection process stands as a testament to our unwavering dedication to excellence, guaranteeing that each part leaving our facility meets our demanding standards. We are resolute in our mission to deliver only the highest quality products to our esteemed customers, reinforcing our reputation for unparalleled excellence and reliability.
Packaging & Shipping
Company Profile
Since its grand inception in 2009, building upon its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has rapidly ascended as a beacon of mastery in the realm of high-precision basic component machining. With an unyielding dedication to cutting-edge innovation over the past two decades, we have ventured boldly into technical research, positioning ourselves as trailblazers in the field of precision engineering. We have cultivated an extensive reservoir of technical expertise, garnering an exceptional market reputation that distinguishes us as an industry leader. Our prowess in precision medical machining services remains unparalleled, consistently achieving extraordinarily tight tolerances and flawless surface finishes. This excellence elevates us as the preferred partner in the medical industry, where precision is paramount.
With four strategically positioned production bases situated in the vibrant economic centers of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has engineered a robust and vertically integrated industry chain. This seamless integration of research and development, production, and delivery empowers us to consistently meet and surpass the diverse expectations of our clients with exceptional efficiency and unmatched quality. Our cutting-edge facilities are expertly equipped to tackle the most intricate and demanding machining challenges, upholding our esteemed reputation for excellence and pioneering innovation.
Workshop Display
Certifications

FAQ
1. What is CNC machining?
CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It's used for a wide range of materials, including metal, plastic, and wood.
2. What materials can be used in CNC machining?
CNC machines can handle a variety of materials such as:
- Metals (aluminum, steel, titanium, brass, copper)
- Plastics (ABS, POM, nylon, acrylic)
- Wood and composite materials
- Ceramics and more.
3. What is the difference between CNC milling and CNC turning?
- CNC Milling: Involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece.
- CNC Turning: Involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.
4. How do I choose the right CNC machining service?
Factors to consider include:
- Material requirements
- Tolerance and precision
- Production volume
- Lead time
- Cost-effectiveness
5. What is the typical lead time for CNC machining?
Lead times depend on the complexity of the part, the material, the required finish, and the production volume. Typically, CNC machining can take anywhere from a few days to a couple of weeks for a prototype or small batch, but larger orders may take longer. Normally 7 days for prototyping and 20 days for mass production shipment.
6. What is the maximum size of a part that can be CNC machined?
The size limitations depend on the specific CNC machine being used. Large-scale machines can accommodate parts up to several meters in length, while smaller machines are typically limited to parts around 1000mm in length or less.
7. What is the accuracy and tolerance of CNC machining?
CNC machining offers high precision, with tolerances typically ranging from ±0.01mm to ±0.1mm. However, the exact tolerance will depend on the machine and the material used.
8. How much does CNC machining cost?
CNC machining costs vary based on factors such as:
- Material choice
- Part complexity
- Machine time
- Labor costs
- Quantity (prototypes vs. mass production)
9. What types of finishes can be applied to CNC machined parts?
Common finishes include:
- Anodizing
- Powder coating
- Polishing
- Painting
- Bead blasting
- Electroplating
10. Can CNC machining be used for prototyping?
Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It's ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.
11. What are some common applications of CNC machining?
CNC machining is used across various industries, including:
- Aerospace and aviation
- Automotive
- Medical devices
- Consumer electronics
- Industrial machinery
12. What are the common challenges in CNC machining?
- Tool wear: As tools wear out, they affect the quality of the parts being machined.
- Material properties: Different materials behave differently during machining, requiring adjustments to the process.
- Programming complexity: Complex designs may need advanced programming skills and specialized machines.
13. How can I ensure the quality of CNC machined parts?
Quality can be ensured through:
- First Article Inspections (FAI)
- In-process inspections
- Final inspections
- Use of quality control tools like CMM (Coordinate Measuring Machine)