Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our devotion to excellence is not just a mandate-it's a passionate pursuit of the art and science of precision manufacturing that sets the benchmark for quality and innovation. Our unparalleled expertise shines as a beacon in the sophisticated world of high-end component fabrication, lighting the way towards impeccable precision and outstanding craftsmanship. As trailblazers in the realm of intelligent automation equipment, we have revolutionized production with our avant-garde solutions, which seamlessly integrate into a vast array of industries, expertly catering to a diverse range of applications, including:
- Medical and Biotech: We offer meticulously crafted high-precision components and innovative, state-of-the-art solutions for medical devices, ensuring we adhere to the most stringent quality standards in the industry.
- Semiconductors: By supplying essential core components, we empower the semiconductor industry, supporting the production of cutting-edge chips and the equipment necessary for their success.
- New Energy: We are at the forefront of the sustainable and dynamic advancement of innovative energy equipment, promoting eco-friendly technological progress with vigor and dedication.
- Automotive: Our essential components are catalysts for innovation in the automotive sector, contributing to the development and evolution of smart and electric vehicles.
Main Products
- Our expertise lies in the specialization of non-standard customized components, serving a wide array of industries including medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and superior quality in every piece.
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: Ensuring Purity and Excellence
Every piece of raw material entering our esteemed warehouse undergoes a comprehensive and rigorous examination process. Our detailed analyses meticulously assess both the chemical composition and the physical attributes. We steadfastly adhere to our dedication to quality by mandating that each supplier furnishes a Certificate of Origin alongside a stamped Declaration of Conformity. This ensures that only premium materials are selected for our high-precision medical machining services. Our rigorous authentication process guarantees these materials uphold the highest standards of integrity and purity, aligning seamlessly with our unwavering commitment to excellence.
Intensive In-Process Quality Assurance: Ensuring Superior Excellence
Within our complex and precise machining operations, every component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but exceed our rigorous specifications. Our diligent and continuous inspection protocol is meticulously designed to intercept potential defects at their inception, thereby preventing non-conforming parts from progressing to subsequent stages. This vigilant strategy is crucial in minimizing any risk of substandard goods, ensuring unparalleled quality at every phase of production, and maintaining a consistent level of excellence throughout the entire process.
Strategic First Article Inspection (FAI): Proactive Problem-Solving
Our First Article Inspection (FAI) process is a vital strategic approach for anticipating and resolving potential production challenges at their earliest stages. This proactive methodology prevents issues from escalating into full-scale production challenges. The comprehensive and precise nature of our FAI process is fundamental in minimizing quality risks, ensuring our products constantly reach the zenith of standards. This dedication to superiority permeates every facet of the production cycle, ensuring that we not only meet but consistently exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection: Precision and Perfection
Before any product exits our facility, it is subject to an exhaustive and meticulous final inspection. This thorough process rigorously evaluates dimensions, visual aesthetics, performance, and any customer-specific requirements. Our comprehensive inspection process stands as a testament to our relentless dedication to quality, ensuring that each part dispatched from our facility adheres to our exacting standards. We are unwavering in our mission to deliver only the finest quality products to our esteemed customers, safeguarding our reputation for unparalleled excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its foundational roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of unparalleled expertise in the realm of high-precision basic component machining. With an unwavering dedication to groundbreaking innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers and leaders in precision engineering. We have amassed a treasure trove of technical expertise, earning a stellar market reputation that sets us apart as industry leaders. Our capabilities in precision medical machining services are truly unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the foremost choice in the medical sector.
With four strategically positioned production bases nestled in the bustling economic hubs of Shenzhen and Guiyang, powered by a dedicated and highly skilled workforce of over 400 talented employees, Donghui has crafted a robust and vertically integrated industry chain. This chain seamlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our clientele with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to tackle 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)