Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are dedicated to exceeding mere obligations; our work is a seamless fusion of passion and expertise in the intricate craft and meticulous science of precision manufacturing. This commitment drives us to set pioneering industry standards. With our unmatched expertise, we illuminate the path in high-end component manufacturing, forging a journey towards flawless precision and extraordinary excellence. We are redefining benchmarks and elevating the standards in the industry. As vanguards of innovation, we are at the forefront of designing and producing revolutionary intelligent automation equipment. Our cutting-edge solutions effortlessly serve a plethora of industries, addressing a vast spectrum of applications and requirements, which include:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and inventive solutions for state-of-the-art medical devices, ensuring they meet the pinnacle of quality standards.
- Semiconductors: Advancing chip production and related machinery by delivering indispensable core components that are crucial to the semiconductor industry's swift advancement.
- New Energy: Playing an active role in the dynamic and sustainable growth of cutting-edge energy equipment, propelling eco-friendly technological innovation.
- Automotive: Providing essential components that drive innovation within the automotive sector, supporting the development of intelligent and electric vehicles with unmatched precision and dependability.
Main Products
- We excel in crafting bespoke, non-standard components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and extraordinary 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. Our dedication to excellence sets new benchmarks in performance and reliability, ensuring that every project we undertake is executed to perfection.
- With a rich history spanning two decades, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. harnesses vast production experience alongside significant technical and process expertise. This ensures exceptional quality and forward-thinking innovation, distinguishing us as pioneers in precision engineering. We consistently deliver top-tier solutions that meet and exceed the sophisticated demands of our discerning clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Testament to Unrivaled Purity and Integrity
Every raw material that graces our sophisticated warehouse is subjected to an exhaustive and meticulous evaluation, ensuring no detail escapes our expert scrutiny. Our rigorous analyses delve deep into both chemical composition and physical traits, accepting only the finest materials. Suppliers must present a Certificate of Origin along with a stamped Declaration of Conformity-symbols of our unwavering commitment to excellence. Only materials of the highest purity and integrity earn the privilege to partake in our high-precision medical machining services. This authentication process serves as a vigilant sentinel, dedicated to upholding extraordinary quality standards, reinforcing our pledge to deliver products of unmatched refinement and precision.
Intensive In-Process Quality Assurance: Crafting Precision with Mastery at Every Stage
Within the synchronized harmony of our precision machining operations, each component undergoes meticulous scrutiny to ensure that dimensions and tolerances not only meet but exceed our lofty expectations. Our ongoing inspection routine is a masterfully orchestrated symphony, skilled at identifying potential anomalies at their earliest stages, effectively preventing any non-conforming components from advancing further. This vigilant approach is crucial in minimizing the risk of substandard products, safeguarding superior quality at every production phase, and ensuring our standard of excellence is consistently maintained throughout the entire production process.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) stands as a strategic cornerstone, imbued with foresight to identify and resolve potential production issues at their earliest stages. This proactive method acts as an unyielding safeguard, preventing issues from escalating into mass production challenges. The thorough and precise nature of our FAI process is essential in mitigating quality risks, ensuring our products consistently achieve the pinnacle of excellence. This unwavering devotion to perfection is interwoven into every phase of our production journey, ensuring our standards consistently rise above the highest echelons of quality.
Meticulous Comprehensive Final Inspection: Embodying the Apex of Perfection
Before any product leaves our facility, it undergoes a final inspection of unparalleled meticulousness and rigor. This stringent evaluation assesses dimensions, visual appeal, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection serves not only as a testament but as a commitment to our relentless pursuit of quality, ensuring every product that exits our facility stands as a beacon of our exacting standards. Our dedication to delivering only the highest quality products to our esteemed customers reinforces our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, building upon a strong foundation established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has climbed to the pinnacle of high-precision component machining. Through relentless devotion to pioneering innovation for over twenty years, we have immersed deeply in technical exploration, positioning ourselves as the torchbearers and thought leaders in the precision engineering sphere. We have developed an extraordinary level of technical proficiency, constructing a market reputation that sets us apart as industry leaders. Our unmatched skill in precision medical machining services empowers us to consistently achieve incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically situated production bases in the vibrant cities of Shenzhen and Guiyang, supported by an expert team of over 400 highly skilled professionals, Donghui has established a strong, vertically integrated industry chain that flawlessly merges research and development, production, and delivery. This enables us to consistently meet and surpass the varied demands of our clients with outstanding efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to handle the most complex and challenging machining tasks, maintaining our esteemed reputation for excellence and groundbreaking 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)