Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends mere obligation; it seamlessly fuses a fervent passion with unparalleled expertise in the intricate artistry and meticulous science of precision manufacturing. We are not just meeting industry standards, but setting them anew. Our unmatched expertise illuminates the path in the high-end component manufacturing domain, carving a journey towards peerless precision and extraordinary excellence that reimagines industry norms. As trailblazers of innovation, we lead the charge in crafting and producing revolutionary intelligent automation equipment. Our cutting-edge solutions are adeptly designed to meet the diverse and dynamic needs of various industries, offering a comprehensive suite of applications and solutions, including:
- Medical and Biotech: Providing meticulously engineered, high-precision components alongside innovative solutions for state-of-the-art medical devices, ensuring strict adherence to the most rigorous quality standards.
- Semiconductors: Empowering the semiconductor industry's rapid progression by delivering essential core components that enhance chip manufacturing and related machinery.
- New Energy: Engaging actively in the dynamic and sustainable growth of next-generation energy equipment, propelling eco-friendly technological advancements.
- Automotive: Supplying crucial components that drive innovation in the automotive sector, supporting the advancement of intelligent and electric vehicles with remarkable precision and reliability.
Main Products
- We excel in the creation of custom non-standard components, extensively catering to the medical, automation, semiconductor, and automotive industries, guaranteeing unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an astounding array of over 300 state-of-the-art machines renowned machines, empowering us to expertly tackle a wide range of equipment categories. This remarkable capability allows us to meet the intricate machining demands of diverse industries with unmatched precision and efficiency, setting new standards in performance and reliability.
- With over two decades of rich history, we leverage our extensive production experience and profound technical expertise, ensuring outstanding quality and forward-thinking innovation. This distinguishes us as true pioneers in precision engineering, consistently providing top-tier solutions to satisfy the sophisticated demands of our 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 welcomed into our distinguished warehouse embarks on a thorough and meticulous examination, where no detail is too minute to escape our discerning attention. Our rigorous analyses delve deep into the chemical composition and physical attributes, ensuring we accept only the crème de la crème. Suppliers are required to provide a Certificate of Origin and a stamped Declaration of Conformity-emblems of our relentless pursuit of excellence. Only those materials that reach the zenith of purity and integrity are deemed fit for our high-precision medical machining services. This authentication process stands as a vigilant guardian, steadfast in its mission to uphold exceptional quality at every turn, reinforcing our commitment to delivering products of unmatched refinement and precision.
Intensive In-Process Quality Assurance: Crafting Precision with Mastery at Every Stage
Within the harmonious cadence of our precise machining operations, each component is subject to meticulous scrutiny to ensure dimensions and tolerances not only meet but surpass our ambitious benchmarks. Our continuous inspection protocol is a masterfully orchestrated symphony, adept at identifying potential discrepancies at their embryonic stage, effectively precluding any non-conforming parts from progressing further. This vigilant methodology is instrumental in mitigating the risk of substandard products, safeguarding the superior quality at every production phase, and ensuring our standard of excellence is consistently upheld throughout the entire orchestration of processes.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) is a strategic mainstay, imbued with foresight to discern and address potential production challenges at their nascent stage. This proactive approach serves as an unyielding safeguard, preempting issues from evolving into mass production dilemmas. The exhaustive and precise nature of our FAI process is crucial in mitigating quality risks, assuring our products consistently reach the zenith of excellence. This unwavering dedication to perfection is intricately woven into every phase of the production journey, ensuring our standards consistently transcend the highest echelons of quality.
Meticulous Comprehensive Final Inspection: Embodying the Apex of Perfection
Before any product departs from our facility, it undergoes a final inspection of unprecedented meticulousness and rigor. This stringent process evaluates dimensions, visual allure, performance, and any customer-specific stipulations with extraordinary precision. Our comprehensive inspection not only serves as a testament but as a commitment to our relentless pursuit of quality, ensuring every product exiting our facility is a beacon of our exacting standards. Our dedication to delivering only the highest quality products to our esteemed customers fortifies our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, and building upon the solid groundwork laid since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen to a prestigious status as a front-runner in high-precision component machining. Guided by an unwavering commitment to groundbreaking innovation spanning more than two decades, we have profoundly engaged in advanced technical research, positioning ourselves as vanguards and thought leaders in the precision engineering realm. We have cultivated an exceptional depth of technical expertise, crafting an unparalleled market reputation that distinguishes us as leaders in the industry. Our unrivaled mastery in precision medical machining services allows us to achieve incredibly tight tolerances and flawless surface finishes consistently, making us the premier choice in the medical sector for quality and reliability.
With four strategically located production bases in the vibrant cities of Shenzhen and Guiyang, reinforced by a dedicated workforce of over 400 highly skilled employees, Donghui has established a robust, vertically integrated industry chain that seamlessly merges research and development, production, and delivery. This ensures we consistently meet and exceed the diverse requirements of our clients with remarkable efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to tackle the most intricate and demanding machining tasks, 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)