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 are a shining beacon of creativity and advancement, proudly showcasing an exquisite selection of over 300 state-of-the-art machines. Each piece of equipment stands as a testament to engineering brilliance and precision unmatched in the industry. world-renowned precision machining toolsOur advanced machinery empowers us to expertly tackle an expansive array of equipment categories, demonstrating versatility and precision across a multitude of industries. This unparalleled capability ensures that we meet the most intricate machining demands with unmatched precision and efficiency. We are redefining excellence by setting new performance benchmarks, revolutionizing industry standards, and upholding our reputation for reliability.
- With a distinguished legacy spanning two decades, we harness extensive production experience alongside deep technical and process expertise. This powerful combination guarantees superior quality and innovative foresight, marking us as leading trailblazers in precision engineering. We consistently deliver premium solutions that cater to the sophisticated needs of our clients, reinforcing our status as pioneers in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Examination of Incoming Materials: Upholding Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our pursuit of unparalleled excellence commences with a meticulous examination of every raw material entering our esteemed facility. Our dedicated team conducts a comprehensive analysis, rigorously evaluating both chemical and physical attributes to ensure the finest materials are meticulously selected for our CNC machining parts. We require suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity, showcasing our unwavering commitment to quality. Only materials epitomizing purity and integrity are accepted, vital for our high-precision medical machining services. Our stringent verification process acts as a vigilant guardian, consistently upholding exceptional quality standards, reinforcing our commitment to delivering products that exemplify refined precision and excellence.
In-Process Quality Assurance: Perfecting Precision at Every Stage
In the seamless choreography of our precise machining operations, each component is subjected to rigorous scrutiny to ensure dimensions and tolerances surpass our high standards. Our ongoing inspection procedures function like a well-orchestrated symphony, adeptly identifying discrepancies at the earliest stage to prevent the advancement of non-conforming parts. This proactive vigilance is crucial in mitigating risks of substandard products, safeguarding superior quality throughout every phase of production, and ensuring our standard of excellence is consistently maintained throughout the entire production process.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) serves as a strategic cornerstone, endowed with foresight to identify and address potential production challenges at the inception. This preemptive strategy acts as a steadfast guardian, preventing issues from escalating into major production concerns. The meticulous precision of our FAI process is pivotal in minimizing quality risks, ensuring our products consistently achieve the pinnacle of excellence. This unwavering dedication to perfection is intricately woven into every step of the production journey, ensuring our standards consistently transcend the zenith of quality.
Comprehensive Final Inspection: Achieving the Pinnacle of Perfection
Before any product departs our facility, it undergoes a final inspection process characterized by unparalleled meticulousness and rigor. This detailed evaluation scrutinizes dimensions, visual aesthetics, performance, and any specialized customer requirements with exceptional precision. Our comprehensive inspection stands as a testament to our relentless pursuit of quality, ensuring every product leaving our facility is a shining example of our stringent standards. Our unwavering commitment to delivering only the highest quality products to our valued customers reinforces our reputation for unmatched excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Founded in 2009 and building upon a distinguished legacy dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerges as a shining beacon of excellence and innovation in the illustrious realm of high-precision component machining. For more than two decades, our unwavering commitment to transformative innovation has propelled us to explore the farthest frontiers of technical research, firmly establishing our position as trailblazers and visionary leaders in the precision engineering landscape. We possess an extraordinary level of technical expertise, which has cultivated a stellar reputation in the market, distinguishing us as industry leaders. Our unparalleled proficiency in precision metal machining services empowers us to consistently achieve extremely tight tolerances and impeccably flawless surface finishes, thereby reinforcing our reputation as the foremost 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 exceptionally skilled professionals, Donghui has developed a powerful and vertically integrated industry chain that seamlessly merges research and development, production, and delivery. This ensures that we not only meet but exceed the diverse needs of our clients with unmatched efficiency and superior quality. Our state-of-the-art facilities are meticulously designed to handle the most complex and challenging machining tasks, sustaining 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)