Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are propelled by more than a mere commitment; our endeavors are fueled by a passionate devotion to the artful mastery and intricate science of precision manufacturing. Our unparalleled knowledge stands as a beacon in the sophisticated world of high-end component creation, charting a course towards exceptional precision and unmatched quality. We are the trailblazers in the innovative development and manufacturing of state-of-the-art intelligent automation equipment. Our avant-garde solutions serve an extensive array of industries, skillfully accommodating a variety of applications, including:
- Medical and Biotech: Delivering meticulously engineered high-precision components and pioneering solutions for cutting-edge medical devices, ensuring the highest standards of quality are maintained.
- Semiconductors: Powering the production of chips and related equipment with essential core components, forming the backbone of the industry's achievements.
- New Energy: Actively participating in the robust and environmentally sustainable progression of new energy equipment, championing eco-friendly technological advancements.
- Automotive: Supplying indispensable components that drive innovation within the automotive realm, fostering the development of smart and electric vehicles.
Main Products
- We are experts in crafting non-standard customized components, extensively supporting the medical, automation, semiconductor, and automotive sectors, guaranteeing unrivaled precision and unparalleled 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 impressive capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency. Our extensive inventory is a testament to our commitment to excellence and versatility in precision engineering.
- 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 elements set us apart as pioneers in the realm of precision engineering, consistently delivering cutting-edge solutions that meet the evolving demands of our global clientele.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Top-Tier Incoming Material Evaluation
Every piece of raw material that enters our warehouse is subjected to an exhaustive and rigorous examination process. Our keen analyses encompass a comprehensive evaluation of the chemical composition and an in-depth inspection of physical properties. Our unwavering dedication to excellence mandates that every supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This ensures that only the most exceptional materials are selected for use in our high-precision medical machining services. Our stringent authentication process guarantees these materials meet the zenith of integrity and purity standards, perfectly reflecting our steadfast commitment to quality.
Robust In-Process Quality Assurance
Throughout our complex and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not merely meet but exceed our rigorous specifications. Our diligent and continuous inspection protocol strategically intercepts potential defects at a nascent stage, thus averting non-conforming parts from advancing to subsequent phases. This vigilant approach is crucial in curtailing the risk of substandard goods, ensuring top-tier quality at each production phase, and preserving excellence throughout the entire process.
Strategic and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process functions as a cornerstone strategy vital for identifying and resolving potential production challenges early on. This foresighted approach thwarts issues from escalating into large-scale production. The exhaustive and precise essence of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently rise to the apex of standards. This unwavering dedication to excellence permeates every facet of the production cycle, assuring that we meet and surpass the highest quality benchmarks.
Exhaustive and Rigorous Final Inspection Protocol
Before any product departs our facility, it undergoes an exhaustive and rigorous final inspection. This process meticulously 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 every part dispatched from our facility aligns with our exacting standards. We remain unwavering in delivering only the highest quality products to our esteemed customers, bolstering our reputation for unparalleled excellence and dependability.
Packaging & Shipping
Company Profile
Since its inception in 2009, tracing its visionary foundation back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen as a beacon of expertise in the realm of high-precision basic component machining. With an unyielding commitment to innovation and excellence over the past two decades, we have immersed ourselves in advanced technical research, distinguishing ourselves as trailblazers and pioneers in the world of precision engineering. We have cultivated an extensive reservoir of technical expertise, earning a sterling market reputation that elevates us as a leader in the industry. Our unparalleled capabilities in precision medical machining services consistently achieve exceptionally tight tolerances and flawless surface finishes, positioning us as the top choice in the medical sector.
With four strategically located production bases nestled in the vibrant hubs of Shenzhen and Guiyang, driven by a passionate team of over 400 highly skilled employees, Donghui has meticulously crafted a resilient and vertically integrated industry chain. This chain seamlessly interlaces research and development, production, and delivery, ensuring that we not only meet but exceed the diverse needs of our customers with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are equipped to tackle the most intricate and demanding machining challenges, preserving our legacy of excellence and revolutionary 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)