Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by more than just obligation; our journey intertwines passion with expertise in the intricate artistry and meticulous science of precision manufacturing. Here, we are not just participants but leaders, setting new heights in industry standards. Our unmatched expertise illuminates the path in the domain of high-end component manufacturing, paving the way for flawless precision and extraordinary excellence, reshaping industry benchmarks with every endeavor. As trailblazers in innovation, we are at the forefront of designing and producing revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly serve an extensive variety of industries, catering to a broad spectrum of applications and requirements, including:
- Medical and Biotech: Providing meticulously crafted, high-precision components and innovative solutions for pioneering medical devices, ensuring compliance with the industry's most rigorous quality standards.
- Semiconductors: Revolutionizing chip manufacturing and its machinery by supplying essential core components pivotal to the fast-paced growth of the semiconductor industry.
- New Energy: Engaging in the vibrant and sustainable advancement of next-generation energy equipment, spearheading eco-friendly technological innovations.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, fostering the development of smart and electric vehicles with unmatched precision and dependability.
Main Products
- We pride ourselves on crafting custom non-standard components, extensively catering to the medical, automation, semiconductor, and automotive sectors, delivering unrivaled precision and superior quality in every piece.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations stand as a beacon of ingenuity and progress, proudly boasting an exquisite selection of over 300 state-of-the-art machines. Each of these is a testament to superior engineering and precision. world-renowned precision machining toolsOur cutting-edge machinery empowers us to expertly address an expansive array of equipment categories. This unparalleled capability allows us to adeptly meet the intricate machining demands across a multitude of industries, delivering precision and efficiency that remain unmatched. We are redefining excellence by establishing new performance benchmarks, revolutionizing the industry standards with our reliability.
- Boasting a distinguished legacy of two decades, we leverage our extensive production experience alongside significant technical and process expertise. This combination ensures superior quality and innovative foresight, marking us as true trailblazers in precision engineering. We consistently provide premium solutions that cater to the sophisticated needs of our clients, cementing our position as leaders in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unparalleled Scrutiny of Incoming Materials: Ensuring Ultimate Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment to distinction starts with a meticulous and systematic evaluation of each raw material welcomed into our esteemed facility. Our diligent team conducts an exhaustive analysis, scrupulously examining both chemical and physical properties to secure the premium quality materials indispensable for our precision CNC machining parts. We require suppliers to furnish a Certificate of Origin paired with a stamped Declaration of Conformity, underscoring our unwavering commitment to quality. Only materials that epitomize the pinnacle of purity and integrity are accepted, vital to our high-precision medical machining services. Our intensive verification process acts as a vigilant sentinel, steadfastly upholding superior quality benchmarks at every phase, reinforcing our pledge to deliver products that exemplify refined precision and excellence.
In-Process Quality Assurance: Mastering Precision at Every Phase
Within the flawless execution of our precise machining operations, each component is subjected to rigorous scrutiny, ensuring that dimensions and tolerances surpass our high expectations. Our continuous inspection procedures operate like a flawlessly orchestrated symphony, proficiently identifying discrepancies at the earliest possible moment to avert the progression of non-conforming parts. This proactive vigilance is pivotal in minimizing the risk of substandard products, maintaining superior quality throughout every stage of production, and ensuring our standard of excellence is unwaveringly preserved throughout the entire manufacturing journey.
Strategic First Article Inspection (FAI): Precision-Driven Perfection
Our First Article Inspection (FAI) constitutes a strategic foundation, equipped with the insight to foresee and address potential production challenges from inception. This proactive approach serves as a steadfast guardian, curbing issues from escalating into large-scale production concerns. The precise accuracy of our FAI process is crucial in mitigating quality risks, guaranteeing our products consistently reach the apex of excellence. This steadfast dedication to perfection is seamlessly integrated into every step of the production journey, ensuring our standards consistently transcend the zenith of quality.
Comprehensive Final Inspection: Reaching the Apex of Perfection
Before any product exits our premises, it undergoes a final inspection process that epitomizes unmatched meticulousness and rigor. This detailed evaluation meticulously examines dimensions, visual appeal, performance, and any bespoke customer requirements with unparalleled precision. Our comprehensive inspection stands as a testament to our relentless pursuit of quality, ensuring that every product leaving our facility is a brilliant example of our stringent standards. Our unwavering commitment to delivering only the highest quality products to our esteemed customers fortifies our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009 and drawing from a rich legacy since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. is a beacon of excellence in high-precision component machining. For over twenty splendid years, our dedication to transformative innovation has driven us beyond the cutting edge of technical research, firmly establishing our place as trailblazers and visionaries in the precision engineering landscape. We boast an unparalleled level of technical prowess, cultivating a sterling reputation that distinguishes us as preeminent industry leaders. Our peerless expertise in precision medical machining empowers us to achieve exceptionally tight tolerances and impeccably flawless surface finishes, reinforcing our status as the premier choice for the medical sector.
With four strategically positioned production bases in the dynamic cities of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled professionals, Donghui has developed a robust, vertically integrated industry chain that seamlessly integrates research and development, production, and delivery. This ensures that we not only meet but consistently exceed the diverse needs of our clients with unparalleled efficiency and superior quality. Our cutting-edge facilities are meticulously designed to tackle the most complex and challenging machining tasks, upholding our esteemed reputation for excellence and pioneering 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)