Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our mission transcends sheer obligation, intertwining passion with cutting-edge expertise in the intricate artistry and meticulous science of precision manufacturing. We stand not merely as participants but as trailblazers, redefining industry standards and setting new heights of excellence. Our unparalleled expertise charts a luminous course in the realm of high-end component manufacturing, leading to flawless precision and extraordinary excellence. We reshape industry benchmarks with each endeavor, ensuring that innovation and quality are at the core of all we do. As pioneers of innovation, we stand at the vanguard of designing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly cater to a diverse array of industries, addressing a broad spectrum of applications and requirements, including:
- Medical and Biotech: Delivering meticulously crafted, high-precision components and innovative solutions for cutting-edge medical devices, while ensuring compliance with the industry's most rigorous quality standards.
- Semiconductors: Transforming chip manufacturing and its machinery by providing essential core components crucial to the rapid evolution of the semiconductor industry.
- New Energy: Actively participating in the dynamic and sustainable advancement of next-generation energy equipment, leading the charge in eco-friendly technological innovations.
- Automotive: Providing vital components that fuel innovation within the automotive industry, facilitating the development of smart and electric vehicles with unmatched precision and reliability.
Main Products
- We take immense pride in crafting custom non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors, delivering unrivaled precision and superior quality in each and every piece we produce.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations stand as a beacon of innovation, with pride in presenting an impressive fleet exceeding 300 highly specialized machines. Each piece of equipment embodies a triumph of engineering excellence. world-renowned precision machining tools, our machines empower us to deftly address a broad spectrum of equipment categories. This versatility allows us to expertly satisfy the complex machining requirements of a wide array of industries with peerless precision and efficiency. We are not just meeting standards, but elevating them to new heights, revolutionizing the benchmarks of performance and reliability.
- With a prestigious history spanning two remarkable decades, we leverage our extensive production expertise alongside formidable technical and process capabilities. This synergy ensures superior quality and innovative foresight, setting us apart as true trailblazers in the field of precision engineering. We are unwavering in our commitment to delivering premier solutions that align with the sophisticated expectations of our clients, solidifying our status as leaders in innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unrivaled Incoming Material Examination: Ensuring Purity and Integrity with Meticulous Precision
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we uphold an unparalleled standard of quality by conducting exhaustive examinations on every raw material that enters our prestigious facility. Our vigilant team leaves no stone unturned as they embark on a thorough exploration of chemical and physical properties, ensuring that only the most premium quality materials are selected for our CNC machining parts. To further affirm our commitment to excellence, suppliers must provide a Certificate of Origin alongside a stamped Declaration of Conformity. This stringent verification process is a testament to our dedication to sourcing materials that epitomize purity and integrity. By rigorously maintaining exceptional quality standards, our authentication process stands as a stalwart guardian of excellence, underscoring our promise to deliver unrivaled precision in our high-precision medical machining services.
In-Process Quality Assurance: Achieving Mastery in Precision at Every Turn
Within the seamless continuum of our precise machining operations, each component is subjected to a rigorous examination, ensuring dimensions and tolerances not only meet but exceed our lofty expectations. Our diligent inspection protocol operates as a finely orchestrated symphony, deftly identifying discrepancies at the earliest opportunity to preempt the development of non-conforming parts. This vigilant methodology is paramount in mitigating the risk of inferior products, preserving superior quality across every stage of production, and ensuring our steadfast standard of excellence resounds through the entire symphony of processes.
Strategic First Article Inspection (FAI): Precision in Anticipating and Achieving Flawless Quality
Our First Article Inspection (FAI) serves as a crucial cornerstone, endowed with the foresight to preemptively identify and rectify potential production challenges right from the beginning. This proactive measure acts as an unwavering safeguard, effectively preventing issues from escalating into large-scale production concerns. The meticulous precision of our FAI process is instrumental in minimizing quality risks and ensuring our products consistently achieve the pinnacle of excellence. This steadfast commitment to perfection is intricately interwoven into every phase of the production journey, ensuring our standards consistently surpass the highest echelons of quality.
Comprehensive Final Inspection: The Zenith of Perfection Embodied
Before any product leaves our facility, it undergoes a final inspection defined by unparalleled meticulousness and rigor. This precise process meticulously evaluates dimensions, visual appeal, performance, and any specific customer requirements with exceptional accuracy. Our comprehensive inspection serves not only as a testament to our relentless pursuit of quality but as a promise that every product that exits our facility stands as a beacon of our exacting standards. Our unwavering dedication to delivering only the highest quality products to our esteemed customers bolsters our reputation for extraordinary excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Founded in 2009, tracing its illustrious origins back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a luminary in the world of high-precision component machining. For more than two decades, driven by an unwavering commitment to revolutionary innovation, we have delved into technical research, securing our status as pioneers and visionary leaders within the precision engineering domain. We possess an extraordinary depth of technical expertise, forging a stellar market reputation that distinctly elevates us as industry luminaries. Our unrivaled proficiency in precision medical machining services empowers us to consistently achieve extremely precise tolerances and impeccably flawless surface finishes, solidifying our position as the premier choice in the medical industry.
With four strategically located production bases in the dynamic cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled professionals, Donghui has crafted a robust, vertically integrated industry chain that seamlessly blends research and development, production, and delivery. This ensures we consistently fulfill and exceed the multifaceted needs of our clients with unmatched efficiency and unparalleled quality. Our cutting-edge facilities are equipped to tackle the most intricate and challenging machining tasks, upholding our esteemed reputation for excellence and innovative leadership.
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)