Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is more than a duty; it is an enthusiastic pursuit of the artful mastery and meticulous science of precision manufacturing. Our unparalleled expertise shines brightly in the realm of high-end component fabrication, guiding the journey toward ultimate precision with unwavering accuracy. We are trailblazing the future with our creation and production of innovative intelligent automation equipment. Our state-of-the-art solutions serve a vast array of industries, effectively meeting a variety of needs, including:
- Medical and Biotech: Delivering precisely engineered, high-precision components and pioneering solutions for cutting-edge medical devices, maintaining the highest standards of excellence.
- Semiconductors: Strengthening chip production and its related equipment by providing essential core components critical for the industry's triumph.
- New Energy: Actively participating in the robust and sustainable development of groundbreaking energy equipment, propelling eco-friendly technological advancements.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, supporting the advancement of intelligent and electric vehicles.
Main Products
- We excel in creating non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, ensuring unrivaled precision and top-notch 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. Our extraordinary fleet empowers us to skillfully and efficiently fulfill the intricate machining needs of diverse industries. With unmatched precision and efficiency, we stand poised to meet and exceed industry expectations.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering. Our commitment to excellence is unwavering, ensuring that we remain at the forefront of the industry.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every raw material that enters our warehouse is subject to a comprehensive and rigorous examination process designed to ensure only the best make it to production. Our detailed analyses encompass both the chemical composition and an in-depth scrutiny of the physical properties. We uphold an uncompromising dedication to quality by mandating that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This exacting process ensures that only the finest materials are chosen for our high-precision medical machining services. Our diligent authentication strategy guarantees materials of the utmost integrity and purity, consistently aligning with our unwavering commitment to excellence.
Intensive In-Process Quality Assurance
Throughout our complex and precise machining operations, each component undergoes meticulous scrutiny to ensure that its dimensions and tolerances exceed even our most exacting specifications. Our continuous inspection protocol is expertly designed to detect potential defects early, preventing non-conforming parts from advancing through the production stages. This vigilant approach is crucial for minimizing the risk of inferior goods, ensuring superior quality at each production phase, and upholding excellence across the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy vital for identifying and addressing any potential production challenges early on. This proactive approach is designed to prevent issues from escalating during mass production. The thorough and precise nature of our FAI process is instrumental in minimizing quality risks, ensuring our products consistently reach the highest standards. This dedication to superior quality permeates every facet of the production cycle, ensuring we not only meet but exceed the most rigorous quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product is dispatched from our facility, it is subject to a meticulous and thorough final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our all-encompassing inspection process is a testament to our relentless pursuit of quality, ensuring that every part leaving our facility meets our stringent standards. We are committed to delivering only the highest quality products to our valued customers, solidifying our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, grounded in its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a stronghold of expertise in the realm of high-precision basic component machining. With an unwavering commitment to innovation that has spanned over two decades, we have delved deeply into technical research, positioning ourselves as trailblazers in the field of precision engineering. We have gathered an unparalleled wealth of technical mastery, securing a stellar market reputation that distinctly sets us apart as a leader in the industry. Our proficiency in precision medical machining services remains unparalleled, consistently achieving exceptionally tight tolerances and flawless surface finishes, making us the premier choice within the medical sector.
With four strategically positioned production bases in the vibrant and bustling hubs of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless chain intricately links research and development, production, and delivery, ensuring that we not only meet but exceed the diverse needs of our customers with exceptional efficiency and unmatched quality. Our cutting-edge facilities are fully equipped to tackle the most complex and demanding machining tasks, maintaining our reputation for excellence and pioneering 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)