Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere obligation; it is fueled by a fervent passion for the artful craft and meticulous science of precision manufacturing. Our unparalleled expertise serves as a beacon in the realm of high-end component fabrication, illuminating the path to unmatched precision. We are at the forefront of developing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions cater to a multitude of industries, addressing diverse applications with unparalleled effectiveness, including:
- Medical and Biotech: Delivering meticulously engineered high-precision components and trailblazing solutions for cutting-edge medical devices, consistently upholding the highest quality standards.
- Semiconductors: Facilitating the production of chips and related equipment by providing essential core components that are vital to the industry's triumph.
- New Energy: Playing an active role in the vigorous and sustainable advancement of cutting-edge energy equipment, driving eco-friendly technological progress.
- Automotive: Supplying critical components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, guaranteeing unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations pride themselves on housing a truly extraordinary collection of over 300 world-renowned machines, enabling us to expertly cater to a wide and varied array of equipment categories. This remarkable capability empowers us to adeptly meet the intricate machining demands of a multitude of industries with unmatched precision and outstanding efficiency.
- With a wealth of experience spanning two decades, we harness an extensive production background, coupled with significant technical and procedural expertise. This ensures not only exceptional quality but also forward-thinking innovation, establishing us as trailblazers in the domain of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary and Rigorous Incoming Material Examination
Every raw material that enters our warehouse is subjected to an exhaustive, thorough, and stringent examination process. Our meticulous analyses encompass both comprehensive evaluations of chemical compositions and in-depth inspections of physical properties. We maintain an unwavering and steadfast commitment to quality by insisting on a Certificate of Origin and a stamped Declaration of Conformity from every supplier. This ensures that only the finest, premium-grade materials are chosen for our high-precision medical machining services. Our rigorous authentication process guarantees that these materials meet the loftiest standards of integrity and purity, perfectly reflecting our steadfast dedication to unparalleled quality.
Intensive and Vigilant In-Process Quality Assurance
Within our intricate, precise, and cutting-edge machining operations, every single component is meticulously scrutinized with unparalleled attention to detail to ensure its dimensions and tolerances not only meet but exceed our stringent and exacting specifications. Our diligent, continuous, and strategic inspection protocol is meticulously designed to intercept potential defects at the earliest stages, thereby preventing any non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at every phase of production, and consistently upholding excellence throughout the entire process.
Proactive and Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a foundational and strategic approach crucial for identifying and resolving potential production challenges at an early stage. This proactive strategy is instrumental in preventing issues from escalating into mass production. The comprehensive and precise nature of our FAI process is essential in minimizing any quality risks, ensuring that our products consistently ascend to the pinnacle of industry standards. This unwavering dedication to excellence permeates every aspect of the production cycle, ensuring that we not only meet but exceed the highest quality benchmarks.
Meticulously Rigorous Comprehensive Final Inspection
Before any product leaves our state-of-the-art facility, it undergoes a meticulously rigorous and thorough final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless commitment to delivering impeccable quality, ensuring that every part dispatched from our facility meets our exacting standards of excellence. We remain steadfast in our dedication to delivering only the highest quality products to our valued customers, thereby upholding our esteemed reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its grand inception in 2009, and tracing its pioneering roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has gracefully emerged as a fortress of expertise in the realm of high-precision basic component machining. With an unwavering commitment to innovation spanning over two dynamic decades, our journey is marked by relentless technical research, firmly establishing us as true trailblazers in the world of precision engineering. We have accumulated an exceptional reservoir of technical expertise, earning us a market reputation that shines with brilliance, setting us apart as an undisputed leader in the industry. Our prowess in precision medical machining services is unparalleled, consistently achieving extremely tight tolerances and flawless surface finishes, making us the unequivocal first choice in the exacting medical sector.
With four strategically positioned production bases nestled in the vibrant and bustling hubs of Shenzhen and Guiyang, and driven by a committed and passionate workforce of over 400 highly skilled employees, Donghui has meticulously crafted an extraordinarily robust and vertically integrated industry chain. This perfectly synchronized chain seamlessly weaves together research and development, production, and delivery, ensuring that we not only meet but consistently exceed the diverse needs of our valued customers with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are adeptly equipped to tackle the most intricate and demanding machining tasks, continuously upholding our sterling reputation for unparalleled excellence and cutting-edge 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)