Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not just committed, but passionately devoted to the fine art and exacting science of precision manufacturing. Our dedication is the cornerstone of our identity. Our unparalleled expertise shines like a beacon in the world of high-end component fabrication, charting the course to unrivaled accuracy and precision. We are at the forefront of innovation in developing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions span across myriad industries, adeptly meeting the demands of various applications, including:
- Medical and Biotech: Delivering exquisitely engineered, high-precision components and pioneering solutions for cutting-edge medical devices, ensuring adherence to the highest echelons of quality standards.
- Semiconductors: Strengthening chip production and its ancillary equipment by providing essential core components that are imperative for the industry's prosperity.
- New Energy: Actively contributing to the robust and sustainable progression of innovative energy equipment, propelling the advancement of eco-friendly technologies.
- Automotive: Supplying key components that drive innovation within the automotive sector, facilitating the transformation towards smart and electric vehicles.
Main Products
- We excel in crafting non-standard, bespoke components, serving the medical, automation, semiconductor, and automotive industries with unparalleled 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.
- 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, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every piece of raw material that enters our meticulously maintained warehouse is subject to a comprehensive and rigorous examination process. Our meticulous evaluations encompass a deep analysis of the chemical composition and a detailed inspection of the physical properties. We adhere to an unyielding commitment to superior quality by mandating that every supplier provides a Certificate of Origin and a rigorously stamped Declaration of Conformity. This ensures that only the best materials are chosen for use in our high-precision medical machining services. Our thorough authentication process guarantees these materials are of the highest standards of integrity and purity, seamlessly aligning with our unwavering dedication to quality.
Intensive In-Process Quality Assurance
In our sophisticated and precise machining operations, every component is meticulously scrutinized to not only meet but exceed our stringent dimensional and tolerance specifications. Our diligent, continuous inspection protocol is ingeniously designed to detect potential defects early, thereby preventing non-conforming parts from advancing to subsequent stages. This vigilant and thoughtful approach is crucial in minimizing the risk of substandard goods, ensuring top-tier quality at every phase of production, and maintaining excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process stands as an integral strategy that is crucial for identifying and resolving potential production challenges at the earliest stages. This proactive approach effectively prevents issues from escalating into mass production scenarios. The comprehensive and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards. Our unwavering dedication to excellence permeates every aspect of the production cycle, ensuring that we consistently meet and exceed the highest quality benchmarks in the industry.
Meticulous Comprehensive Final Inspection
Before any product leaves our facility, it is subjected to a meticulous and thorough final inspection process. This rigorous evaluation assesses dimensions, visual appearance, performance, and any specific customer requirements. Our comprehensive inspection process is a testament to our relentless pursuit of quality, ensuring that every part dispatched from our facility meets our stringent standards of excellence. We remain steadfast in delivering only premium quality products to our valued customers, fortifying our 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 blossomed into a vanguard of high-precision basic component machining expertise. With an unwavering commitment to groundbreaking innovation spanning two decades, we have delved deeply into technical research, establishing ourselves as true pioneers in precision engineering. We have accumulated a wealth of technical expertise, earning a stellar market reputation that distinguishes us as an industry leader. Our unmatched capabilities in precision medical machining services consistently achieve incredibly tight tolerances with impeccable surface finishes, positioning us as 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 intricately crafted a robust and vertically integrated industry chain. This chain flawlessly interweaves research and development, production, and delivery, ensuring that we not only meet but exceed the diverse needs of our customers with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to tackle the most intricate and demanding machining tasks, upholding our reputation for excellence and trailblazing 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)
Audited Supplier 
){kind=link}