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 Excellence Our operations proudly showcase an extraordinary assortment of over 300 meticulously curated renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, setting new benchmarks in performance and reliability.
- With a rich history spanning two decades, we harness our vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This sets us apart as true pioneers in the realm of precision engineering, consistently delivering top-tier solutions to meet the sophisticated demands of our clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Testament to Unrivaled Purity and Integrity
Every raw material entering the hallowed halls of our Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. warehouse is subject to a rigorous and comprehensive examination. Our meticulous process ensures no aspect is overlooked, scrutinizing both chemical and physical attributes with the utmost precision. Only materials that pass this stringent analysis, supported by a Certificate of Origin and a stamped Declaration of Conformity, are deemed worthy of our high-precision medical machining services. This rigorous authentication process stands as a vigilant sentinel, safeguarding our commitment to delivering products of unmatched refinement and precision, maintaining an unwavering standard of excellence every step of the way.
Intensive In-Process Quality Assurance: Crafting Precision with Mastery at Every Stage
Our precise machining operations at Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. are a harmonious symphony of precision, where each component undergoes scrupulous inspection to ensure dimensions and tolerances exceed our lofty benchmarks. Our continuous inspection protocol is an expertly orchestrated concert, identifying potential discrepancies at the earliest stage, preventing non-conforming parts from proceeding further. This vigilant methodology is instrumental in reducing the risk of substandard products, preserving superior quality at each stage of production, thereby upholding our unwavering standard of excellence throughout the entire production process.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) is the strategic bedrock of our production process, endowed with foresight to preemptively address potential manufacturing challenges. This proactive safeguard prevents minor issues from evolving into large-scale production concerns. The exhaustive nature of our FAI process is critical in minimizing quality risks, ensuring our products consistently attain the zenith of excellence. This dedication to precision and quality is seamlessly integrated into every phase of our production journey, ensuring our standards consistently transcend the highest benchmarks of quality.
Meticulous Comprehensive Final Inspection: Embodying the Apex of Perfection
Before departing from the Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. facility, each product is subjected to an unparalleled final inspection, characterized by extraordinary meticulousness and rigorous evaluation. This comprehensive appraisal covers dimensions, visual allure, performance, and any customer-specific requirements with exceptional precision. Our final inspection is not merely a testament, but a profound commitment to our relentless pursuit of quality, ensuring every product leaving our premises is a reflection of our stringent standards. Our dedication to delivering only the highest quality to our valued customers fortifies our reputation for unmatched excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. traces its prestigious origins back to 2002. Having ascended to the forefront of high-precision component machining, we are celebrated as industry pioneers and visionaries. For over two decades, our steadfast dedication to groundbreaking innovation has propelled us to immerse in cutting-edge technical research, cementing our status as thought leaders and trailblazers in the precision engineering arena. We boast an exceptional and unparalleled depth of technical expertise, crafting a stellar market reputation that distinguishes us as true industry leaders. Our unrivaled proficiency in precision medical machining services empowers us to consistently maintain extremely tight tolerances and achieve impeccably flawless surface finishes, making us the premier choice within the medical sector.
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 meticulously built a robust, vertically integrated industry chain that seamlessly unites research and development, production, and delivery. This ensures that we consistently fulfill and exceed the diverse needs of our clients with unparalleled efficiency and exceptional quality. Our cutting-edge facilities are equipped to tackle the most complex 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)