Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment goes beyond mere duty; it is fueled by an ardent passion for the artful elegance and intricate science of precision manufacturing. Our dedication is not just a mission-it's a purpose. Our unparalleled expertise stands as a beacon in the esteemed domain of high-end component fabrication, brilliantly illuminating the journey toward supreme precision and excellence. We are at the forefront of innovation, leading the charge in creating and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a diverse array of industries, adeptly addressing a wide spectrum of applications, including:
- Medical and Biotech: Delivering meticulously crafted high-precision components and pioneering solutions for cutting-edge medical devices, maintaining the highest standards of excellence and quality assurance.
- Semiconductors: Facilitating chip production and its related equipment by providing essential core components that are vital for the industry's achievement and progression.
- New Energy: Actively participating in the dynamic and sustainable advancement of groundbreaking energy equipment, promoting environmentally-friendly technological innovation.
- Automotive: Supplying critical components that drive innovation within the automotive sector, supporting the advancement of intelligent and electric vehicles.
Main Products
- We excel in the fabrication of non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors, offering unparalleled precision and exceptional 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. We stand as pioneers in the realm of precision engineering, offering unmatched craftsmanship and groundbreaking solutions.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination Protocol
Each and every raw material that enters our warehouse is subject to an exhaustive, rigorous examination process. Our meticulous analyses involve a deep dive into chemical compositions and a thorough inspection of physical properties to ensure unparalleled quality. We mandate that every supplier provides a Certificate of Origin along with a stamped Declaration of Conformity, thus guaranteeing that only the best materials are selected for our high-precision medical machining services. This rigorous authentication process ensures our materials uphold the highest standards of integrity and purity, perfectly embodying our unyielding commitment to excellence.
Intensive In-Process Quality Assurance Measures
Within our sophisticated and highly precise machining operations, each component is meticulously scrutinized to ensure that its dimensions and tolerances do not merely meet but surpass our stringent specifications. Our diligent, continuous inspection protocol is strategically designed to detect potential defects at an early stage, effectively preventing any non-conforming parts from advancing to subsequent production phases. This vigilant approach is crucial in minimizing the risk of subpar goods, consistently ensuring superior quality at every stage and maintaining excellence throughout the entire production process.
Strategic First Article Inspection (FAI) Approach
Our First Article Inspection (FAI) process is a foundational strategy, essential for proactively identifying and resolving potential production challenges at the earliest stage possible. This proactive methodology prevents issues from escalating into mass production, with the comprehensive and precise nature of our FAI process minimizing quality risks. Our unwavering dedication to excellence ensures that our products reliably achieve and maintain the highest standards, permeating every aspect of the production cycle, and guaranteeing that we consistently surpass the most stringent quality benchmarks.
Meticulous and Comprehensive Final Inspection Protocol
Before a single product leaves our facility, it undergoes a meticulous and thorough final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We remain steadfast in delivering only the highest quality products to our valued customers, upholding our reputation for excellence and reliability at every turn.
Packaging & Shipping
Company Profile
Established in 2009 and with roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen as a beacon of mastery in the realm of high-precision basic component machining. Our steadfast commitment to groundbreaking innovation over the past twenty years has propelled us to the forefront of technical research, solidifying our status as trailblazers in precision engineering. We have garnered an extensive wealth of technical proficiency, cultivating an exceptional market reputation that distinguishes us as industry leaders. Our unparalleled capabilities in precision medical machining services consistently deliver extraordinarily tight tolerances and flawless surface finishes, making us the premier choice for the medical sector's exacting demands.
With four strategically positioned production bases in the dynamic centers of Shenzhen and Guiyang, supported by a committed team of over 400 skilled professionals, Donghui has meticulously crafted a powerful and vertically integrated industry chain. This chain seamlessly orchestrates research and development, production, and delivery, ensuring we not only meet but exceed the diverse expectations of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are adept at tackling the most intricate and demanding machining challenges, sustaining our 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)