Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we elevate our mission beyond responsibility to an inspired devotion, skillfully mastering the art and science of precision manufacturing. With a spirited drive for excellence, each creation stands as a testament to our unwavering commitment to quality and forward-thinking innovation. Our exceptional expertise shines brilliantly in the realm of high-end component fabrication, navigating the path to impeccable precision and flawless perfection, solidifying our esteemed status as industry pioneers. Leading the charge in developing and producing extraordinary intelligent automation equipment, our cutting-edge solutions cater to a vast range of industries, expertly addressing diverse applications, including:
- Medical and Biotech Sector: We deliver meticulously crafted, high-precision components and innovative solutions for state-of-the-art medical devices, ensuring adherence to the highest standards of quality and pioneering innovation.
- Semiconductors Industry: Empowering the chip production sector and its associated equipment, we provide crucial core components vital for the robust success and groundbreaking advancement of the industry.
- New Energy Innovations: Actively engaged in the dynamic and sustainable evolution of pioneering energy equipment, we spearhead eco-friendly technological advancements with an unwavering commitment to a greener future.
- Automotive Industry: Our pivotal components serve as the heartbeat of innovation within the automotive realm, propelling the advancement of smart and electric vehicles, and fostering transformative growth and ingenuity.
Core Products
- Specializing in crafting custom non-standard components, we extensively serve industries including medical, automation, semiconductor, and automotive. We guarantee unparalleled precision and superior quality in every creation, embodying our vision of excellence and mastery.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300. renowned machines, enabling us to expertly navigate and address a comprehensive spectrum of equipment categories. This unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with a level of precision and efficiency that is truly unmatched. Our fleet's versatility and exceptional capability ensure that no machining challenge is too daunting, making us the go-to solution for industries seeking excellence.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This ensures not only exceptional quality but also innovative thinking, setting us apart as pioneering leaders in the realm of precision engineering. Our unwavering commitment to quality and innovation has solidified our reputation as an industry vanguard.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unrivaled Assessment of Incoming Materials
Each raw material arriving at our warehouse is subjected to a thorough and meticulous examination process, establishing a new benchmark in rigor and precision. Our precise analyses delve into every possible detail, from closely scrutinizing chemical compositions to an all-encompassing inspection of physical properties. We are unwavering in our commitment to exceptional quality, demanding every supplier provide a Certificate of Origin and a stamped Declaration of Conformity. This requirement ensures that only the highest quality materials are selected for our high-precision medical machining services. Our stringent authentication process guarantees materials of the utmost integrity and purity, perfectly embodying our steadfast dedication to excellence and superiority.
Meticulous Quality Assurance During the Process
Throughout our intricate machining operations, each component undergoes rigorous scrutiny to ensure dimensions and tolerances not only meet but surpass our stringent specifications. Our meticulous inspection protocol is strategically designed to detect potential defects at the earliest possible stages, effectively preventing non-conforming parts from advancing further in the process. This vigilant approach significantly minimizes the risk of substandard outputs, guarantees unparalleled quality at every phase, and maintains excellence throughout the entire production journey.
First Article Inspection (FAI) with Strategic Precision
Our First Article Inspection (FAI) process is a fundamental strategy, essential in identifying and resolving potential production challenges from the very start. This proactive approach ensures that issues are addressed well before reaching mass production. The comprehensive precision of our FAI process is crucial in mitigating quality risks, consistently elevating our products to the pinnacle of the highest standards. Our unwavering commitment to excellence permeates every aspect of the production cycle, ensuring we continually surpass even the highest quality benchmarks.
Thorough and Comprehensive Final Quality Inspection
Before any product departs our facility, it undergoes an intensive and comprehensive final inspection. This rigorous process evaluates dimensions, visual appearance, and performance, meticulously adhering to any customer-specific requirements. Our exhaustive inspection regime is a testament to our relentless pursuit of quality, guaranteeing that every part leaving our facility aligns seamlessly with our exacting standards. We are unwavering in our commitment to delivering only the finest products to our esteemed customers, continually reinforcing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its vibrant inception in 2009 and having firmly planted its roots as early as 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a luminary in the domain of high-precision component machining. With unwavering dedication to pioneering innovation and excellence over the past two decades, we have immersed ourselves in the realm of advanced technical research, establishing a legacy as true trailblazers in the sphere of precision engineering. At Donghui, we have cultivated an extraordinary reservoir of technical acumen, earning a stellar market reputation that distinctly positions us as an industry leader. Our unparalleled proficiency in precision medical machining services consistently delivers extraordinarily tight tolerances and impeccably flawless surface finishes, ensuring we are the preferred partner in the exacting medical sector.
With an impressive array of resources, we proudly operate four strategically located production bases, thriving within the energetic and bustling centers of Shenzhen and Guiyang, supported by our devoted and skilled workforce of over 400 highly trained employees. Donghui has meticulously developed a robust and vertically integrated industry chain. This seamless network expertly intertwines research and development, production, and delivery, ensuring that we not only meet but consistently surpass the diverse needs and expectations of our esteemed customers with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are exquisitely equipped to tackle the most complex and demanding machining tasks, consistently upholding our reputation for excellence and innovative breakthroughs.
Captivating 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)