Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not merely an obligation; it is a heartfelt passion for the artful craft and meticulous science of precision manufacturing. Our unparalleled expertise stands as a beacon in the domain of high-end component fabrication, illuminating the journey to flawless precision. We are at the forefront of developing and manufacturing revolutionary intelligent automation equipment. Our state-of-the-art solutions are designed to serve a broad spectrum of industries, skillfully addressing a variety of applications, including:
- Medical and Biotech: Crafting meticulously engineered, high-precision components and pioneering solutions for cutting-edge medical devices, ensuring adherence to the highest quality benchmarks.
- Semiconductors: Elevating chip production and related equipment through the provision of indispensable core components that are essential to industry triumph.
- New Energy: Championing the dynamic and sustainable evolution of innovative energy equipment, propelling eco-conscious technological advancement.
- Automotive: Supplying essential components that drive innovation in the automotive sector, supporting the transformation of smart and electric vehicles.
Main Products
- We excel in the creation of non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unrivaled precision and premium 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 sophisticated capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unrivaled precision and remarkable efficiency.
- With a rich history that spans an impressive two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, positioning us as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Meticulous Incoming Material Examination: Ensuring Top-Tier Quality from the Start
Each raw material entering our warehouse undergoes a comprehensive, stringent examination process. Our meticulous analyses encompass a detailed evaluation of chemical composition and a thorough inspection of physical properties. We maintain an unwavering dedication to quality by mandating suppliers provide a Certificate of Origin and a stamped Declaration of Conformity. This rigorous procurement strategy ensures only the finest materials are selected for our high-precision medical machining services. Our rigorous authentication process guarantees these materials meet supreme standards of integrity and purity, perfectly aligning with our steadfast quality commitment.
Intensive In-Process Quality Assurance: Diligent Oversight for Superior Outcomes
Within our intricate and precise machining operations, every component undergoes meticulous scrutiny, ensuring its dimensions and tolerances not only meet but exceed our rigorous specifications. Our diligent, continuous inspection protocol is strategically crafted to intercept potential defects early, preventing non-conforming parts from advancing to further stages. This vigilant approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at each production phase, and maintaining excellence throughout our entire process.
Strategic First Article Inspection (FAI): Pioneering Quality through Precision
Our First Article Inspection (FAI) process is a foundational strategy vital for identifying and addressing potential production challenges at their inception. This proactive approach effectively prevents escalation into mass production. The comprehensive and precise nature of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards. This dedication to excellence permeates every production cycle aspect, guaranteeing we meet and exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection: Breeding Reliability and Excellence
Before any product exits our facility, it endures a meticulous and thorough final inspection. This rigorous process evaluates dimensions, visual appeal, performance, and any customer-specific requirements. Our comprehensive inspection process epitomizes our relentless commitment to quality, ensuring every part dispatched from our facility meets our exacting standards. We pledge to deliver only top-quality products to our valued customers, upholding 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 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)