Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment surpasses mere duty; it is fueled by an ardent passion for the artful craft and intricate science of precision manufacturing. Our unsurpassed expertise shines brightly in the domain of elite component fabrication, guiding the journey towards exacting precision. We are at the forefront of innovating and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions are designed to serve a vast array of industries, adeptly fulfilling a wide range of applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and pioneering solutions for cutting-edge medical devices, ensuring the highest quality standards.
- Semiconductors: Enhancing chip production and related equipment by delivering essential core components that are vital to the industry's advancement.
- New Energy: Committed to the dynamic and sustainable progression of groundbreaking energy equipment, promoting environmentally friendly technological innovation.
- Automotive: Supplying pivotal components that drive innovation within the automotive sector, supporting the transformation of smart and electric vehicles.
Main Products
- We excel in non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and top-tier quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, skillfully allowing us to cater to an extensive array of equipment categories. This powerful capability empowers us to adeptly satisfy the intricate machining demands of diverse industries with unmatched precision and efficiency.
- With a rich history spanning two decades, we leverage an abundance of production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as true pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Meticulous Incoming Material Examination
In our pursuit of excellence, every raw material that enters our warehouse undergoes an exhaustive and rigorous examination process. Our detailed analyses encompass an in-depth evaluation of chemical composition, paired with a comprehensive assessment of physical properties. With an unyielding commitment to quality, we mandate that each supplier furnishes a Certificate of Origin alongside a stamped Declaration of Conformity. This meticulous selection process ensures that only the finest, most pristine materials are chosen for our precision medical machining services. By adhering to such stringent authentication procedures, we guarantee that these materials meet the pinnacle of integrity and purity, perfectly echoing our unwavering dedication to quality.
Rigorous In-Process Quality Assurance
Throughout our intricate and precision-driven machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our continuous and diligent inspection protocol is expertly designed to identify potential defects at the earliest stage possible, thus preventing any non-conforming parts from advancing to subsequent phases. This vigilant methodology is crucial in reducing the risk of any substandard products, thereby ensuring superior quality and excellence at every step of the production process.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) process is an integral strategy, essential for the early identification and resolution of potential production challenges. By addressing these issues in their infancy, we effectively prevent them from escalating into the realm of mass production. This proactive and comprehensive approach significantly mitigates quality risks, ensuring our products consistently achieve and exceed the highest standards possible. Such dedication to excellence is embedded in every facet of our production cycle, guaranteeing that our output not only meets but sets the benchmark for quality.
Thorough Comprehensive Final Inspection
Before any product departs from our facility, it is subject to a meticulous, comprehensive final inspection. This rigorous process thoroughly evaluates dimensions, visual appearance, performance, and any specific customer requirements. Our exhaustive inspection procedures epitomize our relentless dedication to quality, assuring that each component dispatched from our facility aligns with our stringent standards. We are committed to delivering only the highest quality products to our esteemed clientele, reinforcing our reputation for excellence and dependability.
Packaging & Shipping
Company Profile
Since its dynamic inception in 2009, branching from its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a true bastion of expertise within the realm of high-precision basic component machining. With an unwavering dedication to innovation that spans over the past two decades, our ambitious pursuit of technical research has solidified our position as vanguards of precision engineering. We have accumulated an unparalleled wealth of technical expertise, earning a stellar market reputation that distinctly sets us apart as a true leader in the industry. Our unparalleled capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes. This makes us the unequivocal preferred choice in the medical sector.
With four strategically located production bases, in the vibrant and bustling hubs of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless chain weaves together research and development, production, and delivery, ensuring we meet and exceed the diverse needs of our customers with outstanding efficiency and unmatched quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our illustrious 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)