Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication transcends the boundaries of mere obligation; it is driven by a fervent passion for the nuanced artistry and the intricate science of precision manufacturing. Our unparalleled expertise shines like a beacon of precision, illuminating the world of high-end component fabrication with its radiant glow. We proudly stand at the pinnacle of innovation, spearheading the evolution of intelligent automation equipment. Our groundbreaking solutions span a multitude of industries, meeting diverse needs across sectors, including:
- Medical and Biotech: Delivering meticulously engineered high-precision components and cutting-edge solutions for state-of-the-art medical devices, upholding the highest quality standards.
- Semiconductors: Facilitating chip production and associated equipment by providing indispensable core components, integral to the heart of the industry.
- New Energy: Aiding in the dynamic and sustainable growth of groundbreaking energy equipment, championing eco-friendly innovations.
- Automotive: Supplying crucial components that propel innovation in the automotive industry, advancing the development of intelligent and electric vehicles.
Main Products
- We offer bespoke non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched 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. Our expansive array of state-of-the-art machinery allows us to execute even the most complex projects with ease and accuracy.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. Our commitment to excellence ensures that each product meets the highest standards of performance and reliability, setting new benchmarks in the industry.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Meticulous Scrutiny of Incoming Materials
Every raw material entering our warehouse undergoes a thorough and exacting review process. We meticulously assess the chemical composition and closely examine the physical attributes. Our steadfast dedication to excellence requires each supplier to present a Certificate of Origin, along with an official Declaration of Conformity. This protocol ensures that only the highest quality materials are chosen for our high-precision medical machining services. Our stringent verification process guarantees that these materials uphold the utmost standards of purity and integrity, aligning seamlessly with our unwavering commitment to superior quality.
Impeccable In-Process Quality Control Measures
Throughout the intricate machining process, every component is subject to meticulous examination to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and ongoing inspection protocol is crafted to proactively catch defects, preventing any non-conforming parts from advancing in the production process. This vigilant strategy is paramount in minimizing the risk of creating substandard products, ensuring top-tier quality at every production phase, and upholding excellence throughout the entire manufacturing journey.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) serves as a fundamental strategy, essential for identifying and addressing potential production issues at an early stage, thereby averting any problems from evolving into full-scale production. The comprehensive and precise methodology of our FAI process is instrumental in reducing quality risks, ensuring our products consistently achieve the highest standards. Our unwavering dedication to excellence is evident in every phase of the production cycle, offering assurance that our products consistently meet and surpass the most stringent quality benchmarks.
Thorough and Detailed Final Inspection Process
Before any product leaves our facility, it undergoes a meticulous and thorough final inspection. This process rigorously assesses dimensions, visual appeal, and performance, alongside any specific customer requirements. Our comprehensive inspection underscores our relentless commitment to quality, ensuring that every component dispatched from our premises aligns with our exacting standards. We are devoted to delivering only the finest quality products to our valued customers, maintaining our esteemed reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has consistently been at the forefront of high-precision basic component machining, blending art and science in harmony. With an unwavering passion for innovation nurtured over the past two decades, we have conducted profound technical research, positioning ourselves as true pioneers in the realm of precision engineering. We have cultivated an extensive reservoir of technical expertise, establishing a remarkable market reputation that distinguishes us as an industry leader. Our precision medical machining services are unparalleled, consistently delivering tight tolerances and flawless surface finishes, which make us the preferred choice for the medical sector's most demanding requirements.
With four strategically located production bases in the dynamic and vibrant hubs of Shenzhen and Guiyang, supported by a proficient workforce of over 400 skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we not only meet but exceed the diverse needs of our clients with exceptional efficiency and unmatched quality. Our cutting-edge facilities are equipped to execute the most intricate and demanding machining tasks, upholding our revered reputation for excellence and continual 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)