Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not merely a responsibility; it is an inspired passion for the artful mastery and exacting science of precision manufacturing. Our unparalleled expertise acts as a beacon in the sphere of high-end component creation, illuminating the roadmap to perfect precision and excellence. Standing at the cutting edge of innovation, we lead the charge in producing groundbreaking intelligent automation equipment. Our avant-garde solutions expertly cater to a vast array of industries, addressing varied applications and diverse needs, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components alongside pioneering solutions for sophisticated medical devices, upholding the pinnacle of quality excellence.
- Semiconductors: Enhancing chip production efficiency by providing critical core components that are essential to the semiconductor industry's continued prosperity.
- New Energy: Engaged actively in fostering the dynamic and sustainable evolution of advanced energy equipment, championing eco-friendly innovation and technology.
- Automotive: Contributing indispensable components that fuel innovation within the automotive sector, aiding the advancement of smart and electric vehicle technologies.
Main Products
- We are masters in the art of crafting bespoke, non-standard components, serving the medical, automation, semiconductor, and automotive industries with unwavering precision and an exceptional commitment to quality.
Why choose us
Core Advantages
- A Fleet of Excellence: A Showcase of Unmatched Capabilities Our operations proudly showcase an extraordinary assortment of over 300 renowned and cutting-edge machines meticulously selected to ensure top-tier performance, 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. These attributes set us apart as true pioneers in the realm of precision engineering, consistently delivering products that exceed expectations.
State-of-the-Art Production Equipment: Unrivaled Craftsmanship
High-Precision Inspection Equipment: Assurance of Flawless Quality
Quality Ensurance
Exemplary Examination of Incoming Materials: A Testament to Purity and Integrity
Every raw material entering the hallowed ground of our warehouse undergoes an exhaustive examination process unrivaled in its meticulousness. We delve deeply into the chemical composition and conduct a comprehensive inspection of the physical attributes, leaving nothing to chance. Our steadfast dedication to quality is evident as we require each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. Only the finest materials earn a place in our high-precision medical machining services. Our stringent authentication process acts as a vigilant sentinel, guaranteeing these materials meet the highest standards of integrity and purity, harmonizing perfectly with our unwavering commitment to excellence.
Intensive Quality Assurance Throughout the Process: Precision at Every Turn
Within the orchestrated dance of our precise machining operations, every component is meticulously scrutinized to ensure it not only meets but exceeds our stringent specifications for dimensions and tolerances. Our ongoing inspection protocol is a strategic masterpiece, designed to identify potential defects at their inception, thus preventing non-conforming parts from progressing to subsequent stages. This vigilant approach is a fundamental pillar in reducing the risk of substandard goods, ensuring superior quality at every production phase, and maintaining excellence throughout the entire process symphony.
Strategic First Article Inspection (FAI): Foreseeing Perfection
Our First Article Inspection (FAI) is more than a process; it is a visionary strategy rooted in foresight, crucial for identifying and addressing potential production challenges at their earliest stage. This proactive methodology serves as a protective shield, preventing issues from escalating into mass production. The comprehensive and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the pinnacle of excellence. This steadfast dedication imbues every aspect of the production cycle, enabling us to surpass even the most rigorous quality benchmarks.
Meticulous Final Inspection: The Apex of Perfection
Before any product departs from our facility, it undergoes a final inspection that epitomizes meticulousness and thoroughness. This rigorous process assesses dimensions, visual appearance, performance, and any customer-specific requirements with unwavering precision. Our comprehensive inspection is more than a testament; it is a pledge to our relentless commitment to quality, ensuring every part dispatched from our facility embodies our exacting standards. We stand firm in delivering only the highest quality products to our valued customers, maintaining our esteemed reputation for unmatched 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)