Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends mere obligation, harmoniously fusing passion with expertise in the sophisticated art and exacting science of precision manufacturing, thus setting unparalleled standards in the industry. Our unmatched prowess illuminates the path in the high-end component manufacturing sector, paving the way to flawless precision and remarkable excellence, thereby redefining the paradigms of industry benchmarks. As trailblazers in innovation, we spearhead the design and production of revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly satisfy the needs of a vast spectrum of industries, addressing an expansive variety of applications and requirements, including:
- Medical and Biotech: Delivering meticulously engineered, precision-crafted components and avant-garde solutions for the most advanced medical devices, adhering strictly to the pinnacle of quality standards.
- Semiconductors: Augmenting chip production and related machinery by providing essential core components that are critical to the rapid advancement of the semiconductor industry.
- New Energy: Actively contributing to the vibrant and sustainable progression of next-generation energy technologies, championing eco-friendly innovation.
- Automotive: Supplying indispensable components that drive innovation within the automotive industry, underpinning the evolution of intelligent and electric vehicles with unwavering precision and dependability.
Main Products
- We excel in creating custom non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors, consistently delivering unrivaled precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 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: Demonstrating Unmatched Purity and Integrity
Every raw material that graces our prestigious warehouse embarks on a journey of rigorous and meticulous examination, where no detail is too minute for our keen eye. Our thorough analyses delve deeply into the chemical composition and physical attributes of materials, ensuring we only accept the absolute finest. Suppliers must provide a Certificate of Origin and a stamped Declaration of Conformity as symbols of our unwavering quest for excellence. Only materials that achieve the pinnacle of purity and integrity are deemed worthy for our high-precision medical machining services. This meticulous authentication process stands as a vigilant guardian, steadfast in its mission to uphold exceptional quality at every turn, reinforcing our commitment to delivering products of unmatched refinement and precision.
Intensive In-Process Quality Assurance: Mastering Precision at Every Stage
Within the harmonious rhythm of our precision machining operations, each component undergoes meticulous scrutiny to ensure dimensions and tolerances not only meet but surpass our ambitious benchmarks. Our continuous inspection protocol is a masterfully orchestrated symphony, adept at identifying potential discrepancies at their earliest stage, effectively preventing any non-conforming parts from progressing further. This vigilant methodology is essential in mitigating the risk of substandard products, safeguarding superior quality at every production phase, and ensuring our standard of excellence is consistently upheld throughout the entire orchestration of processes.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) is a strategic cornerstone, infused with foresight to discern and address potential production challenges at their earliest stage. This proactive approach serves as an unyielding safeguard, preempting issues from evolving into mass production dilemmas. The exhaustive and precise nature of our FAI process is crucial in mitigating quality risks, assuring our products consistently achieve the pinnacle of excellence. This unwavering dedication to perfection is intricately woven into every phase of the production journey, ensuring our standards consistently transcend the highest echelons of quality.
Meticulous Comprehensive Final Inspection: Embodying the Apex of Perfection
Before any product departs from our facility, it undergoes a final inspection of unparalleled meticulousness and rigor. This stringent process evaluates dimensions, visual allure, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection not only serves as a testament but as a commitment to our relentless pursuit of quality, ensuring every product exiting our facility is a beacon of our exacting standards. Our dedication to delivering only the highest quality products to our esteemed customers fortifies our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Established on the solid foundation of expertise since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. was officially founded in 2009, quickly rising to prominence as a key player in the realm of high-precision component machining. Our esteemed position is fueled by over two decades of unwavering dedication to pioneering innovation and technical excellence. As trailblazers and thought leaders in precision engineering, we are deeply committed to advancing our technical research, further solidifying our stature in this competitive industry. We pride ourselves on developing an exceptional depth of technical expertise, which has carved a superior market reputation and distinguishes us as leaders in the field. Our unmatched proficiency in precision medical machining services enables us to achieve remarkably tight tolerances and immaculate surface finishes with remarkable regularity, establishing us as the preferred partner in the medical sector.
With four strategically located production bases in the vibrant cities of Shenzhen and Guiyang, supported by an accomplished team of over 400 highly skilled professionals, Donghui has meticulously built a robust, vertically integrated industry chain that harmoniously blends research and development, production, and delivery. This comprehensive integration ensures we consistently meet and exceed the diverse needs of our clients with unparalleled efficiency and superior quality. Our cutting-edge facilities are designed to handle the most complex and demanding machining challenges, maintaining our esteemed reputation for excellence and groundbreaking innovation.
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)