Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication is not just a duty; it is a fervent passion for the artful craft and precise science of high-end manufacturing. Our drive is fueled by the pursuit of excellence in every intricate detail we create. Our unparalleled expertise is a beacon in the world of superior component fabrication, guiding us with unwavering precision and craftsmanship in every endeavor. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions span a wide array of industries, effectively meeting the needs of diverse applications, such as:
- Medical and Biotech: Offering meticulously engineered, high-precision components and pioneering solutions for cutting-edge medical devices, maintaining the highest standards of quality and innovation.
- Semiconductors: Enhancing chip production and related equipment by providing essential core components that are vital to the industry's advancement and success.
- New Energy: Actively participating in the robust and sustainable development of innovative energy equipment, promoting eco-friendly technological progress and innovation.
- Automotive: Delivering critical components that drive innovation in the automotive sector, supporting the evolution of smart and electric vehicles with cutting-edge technology.
Main Products
- We specialize in crafting non-standard, customized components, extensively supporting the medical, automation, semiconductor, and automotive industries. We guarantee unmatched precision and quality, ensuring that each component meets the highest standards.
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 incredible capacity empowers us to skillfully fulfill the intricate and exacting machining needs of diverse industries with unmatched precision and efficiency, ensuring that every project is executed to perfection.
- 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. This distinct blend of experience and expertise sets us apart as pioneers in the realm of precision engineering, defining new standards in the industry.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every piece of raw material that enters our warehouse embarks on an intensive journey through our exhaustive and stringent evaluation process. We don't just stop at standard analyses; we delve deep into the nuances of chemical compositions and meticulously scrutinize each physical property. Our unwavering dedication to excellence compels us to demand a Certificate of Origin alongside a stamped Declaration of Conformity from every supplier. This intricate process ensures that only the crème de la crème of materials are handpicked for our high-precision medical machining services. Our rigorous authentication is not just a formality; it's our promise that every material resonates with the pinnacle of integrity and purity, seamlessly harmonizing with our steadfast pledge to unparalleled quality.
Intensive In-Process Quality Assurance
In the heart of our complex and precise machining realm, each component undergoes an exhaustive scrutiny that ensures dimensions and tolerances not only meet but surpass our rigorous specifications. Our vigilant and continuous inspection methodology is engineered to detect potential defects at the nascent stage, thereby preemptively halting non-conforming parts from advancing further. This strategic vigilance is paramount to minimizing risks of substandard goods, guaranteeing superior quality at every production phase, and fortifying excellence throughout the entire manufacturing journey.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is more than a procedure; it's a foundational strategy pivotal to preemptively identifying and resolving potential production hurdles. This foresight prevents issues from snowballing into mass production dilemmas. The exhaustive and precise nature of our FAI process is instrumental in mitigating quality risks, ensuring our products not only meet but soar above industry benchmarks. This unwavering dedication to excellence permeates every layer of our production cycle, guaranteeing that we consistently surpass the zenith of quality standards.
Meticulous Comprehensive Final Inspection
Before any product departs from our facility, it is subjected to an exhaustive and meticulous final inspection. This procedure rigorously checks dimensions, visual aesthetics, performance, and any customer-specific stipulations. Our comprehensive inspection mirrors our relentless pursuit of quality, ensuring that every dispatched part aligns perfectly with our stringent standards. We pledge to deliver nothing less than the highest quality products to our esteemed customers, reinforcing our reputation for excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our 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)