Product application
At the forefront of Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our relentless pursuit of excellence is driven by a fervent dedication where passion meets unparalleled expertise. We are not just participants; we are trailblazers, elevating the art and science of precision manufacturing to new pinnacles. Our leadership in the industry signifies a relentless commitment to pushing boundaries and setting new standards of excellence. Our unparalleled expertise illuminates the path of high-end component manufacturing, creating a stage where impeccable precision meets outstanding excellence. In every endeavor, we redefine industry benchmarks, continually raising the bar and transforming the landscape of precision manufacturing into a tapestry of superior quality and innovation. As innovative pioneers, we propel the design and production of revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly serve an extensive array of industries, meeting diverse applications and needs with remarkable versatility and unmatched sophistication, including:
- Medical and Biotech: We deliver meticulously engineered, high-precision components, forging groundbreaking solutions for avant-garde medical devices. Our commitment ensures strict adherence to the industry's most rigorous quality standards, continually pushing the boundaries of innovation and excellence.
- Semiconductors: Ushering in a transformative era in chip manufacturing and machinery through the provision of critical core components, we play an instrumental role in powering the rapid advancement of the semiconductor industry with cutting-edge precision and reliability.
- New Energy: We actively contribute to the dynamic and sustainable evolution of next-generation energy equipment, leading the charge in eco-friendly technological advancements and championing the cause of a greener, more sustainable future.
- Automotive: We supply essential components that fuel groundbreaking innovation in the automotive sector, driving the evolution of smart and electric vehicles with unmatched precision and steadfast reliability.
Main Products
- We take immense pride in crafting bespoke, non-standard components that extensively serve the medical, automation, semiconductor, and automotive sectors. Each piece we manufacture is a testament to our unwavering commitment to unparalleled precision and superior quality, embodying our passion for excellence.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations are a hallmark of innovation and advancement, showcasing an impressive array of over 300 cutting-edge machines. Each one symbolizes the pinnacle of engineering prowess and precision. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur state-of-the-art machinery enables us to seamlessly tackle a wide spectrum of equipment categories. This extraordinary capability allows us to masterfully meet the intricate machining demands across diverse industries, delivering precision and efficiency that are second to none. We are setting new heights of excellence, revolutionizing industry standards with our unmatched reliability and performance.
- With a distinguished legacy spanning two decades, we harness our vast production experience along with profound technical and process expertise. This unique blend guarantees top-tier quality and visionary foresight, establishing us as true pioneers in precision engineering. We reliably deliver premium solutions that fulfill the sophisticated needs of our clients, reaffirming our leadership in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unrivaled Scrutiny of Incoming Materials: Guaranteeing Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our pursuit of unparalleled quality begins with a meticulous and comprehensive evaluation of every raw material that enters our esteemed facility. We boast a dedicated team that performs exhaustive analyses, assessing both chemical and physical attributes, ensuring only the finest materials are chosen for our CNC machining parts. Our suppliers are required to provide a Certificate of Origin with a stamped Declaration of Conformity, exemplifying our unwavering commitment to quality. Only materials of supreme purity and integrity are accepted, a critical aspect for our high-precision medical machining. Our stringent verification process stands as an unwavering guardian, vigilantly maintaining superior quality standards, fortifying our commitment to delivering products that exhibit impeccable precision and unmatched excellence.
In-Process Quality Assurance: Mastering Precision in Every Phase
Throughout our precision machining processes, each component is meticulously scrutinized to ensure that dimensions and tolerances not only meet but exceed our exceptional standards. Our continuous inspection protocols are a masterfully coordinated effort, proficiently identifying discrepancies early to prevent non-conforming parts. This proactive vigilance significantly reduces the risk of inferior products, safeguarding exceptional quality at each production phase and ensuring our excellence is consistently maintained from start to finish.
Strategic First Article Inspection (FAI): Foreseeing Perfection with Precision
Our First Article Inspection (FAI) is a pivotal strategy, possessing the foresight to detect and proactively address potential production challenges from the outset. This foresight acts as a reliable sentinel, preventing issues from escalating into significant production obstacles. The meticulous precision of our FAI process is crucial in minimizing quality risks, ensuring our products consistently attain the zenith of excellence. This relentless pursuit of perfection is intricately woven into every phase of our production journey, guaranteeing our standards consistently surpass the pinnacle of quality.
Comprehensive Final Inspection: Attaining the Apex of Perfection
Before any product departs our facility, it is subject to a final inspection process characterized by unparalleled meticulousness and thoroughness. This rigorous evaluation carefully examines dimensions, aesthetics, performance, and any specialized customer requirements with unmatched precision. Our exhaustive inspection is a testament to our relentless pursuit of quality, ensuring every product leaving our facility exemplifies our stringent standards. Our unwavering commitment to delivering only the highest quality products to our esteemed customers fortifies our reputation for unmatched excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., a shining beacon of unparalleled precision and groundbreaking innovation, was established in 2009. With a legacy that reaches back to 2002, we have cemented our status as a distinguished leader in high-precision component machining. Our relentless dedication to transformative innovation propels us to the forefront of technical research, where we continuously redefine the limits of precision engineering. For over two decades, we have been pioneers and visionaries, setting new benchmarks and forging new pathways in this dynamic field. We proudly stand at the pinnacle of the industry, armed with unrivaled technical expertise that distinguishes us as true leaders. Our outstanding proficiency in precision medical machining services enables us to consistently deliver ultra-tight tolerances and impeccably flawless surface finishes. This firmly establishes us as the preferred choice for the medical sector, further reinforcing our esteemed status and solidifying our reputation for unmatched excellence.
With four strategically located production bases in the bustling cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 exceptionally skilled professionals, Donghui proudly stands as a robust, vertically integrated industry leader. We seamlessly merge research and development with production and delivery, ensuring we exceed our clients' diverse needs with unmatched efficiency and superior quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our revered reputation for pioneering leadership and excellence.
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)