Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication to unrivaled excellence transcends mere obligation. It is driven by a relentless enthusiasm for achieving brilliance in both the intricate art and the sophisticated science of manufacturing prowess. Our exceptional expertise blazes a trail towards unmatched precision, serving as a beacon in the exclusive domain of elite component manufacturing. Leading the charge in innovation, we establish the gold standard in designing and producing groundbreaking intelligent automation equipment. Our cutting-edge solutions integrate seamlessly across a vast array of industries, meeting diverse demands with precision across numerous applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions crafted for the next generation of medical devices.
- Semiconductors: Enhancing chip production and related essential equipment with indispensable core components.
- New Energy: Contributing vitally to the innovative and sustainable progression of cutting-edge energy equipment.
- Automotive: Supplying pivotal components that drive innovation within the automotive industry, facilitating the advancement of smart and electric vehicles.
Main Products
- Expertly crafted non-standard customized components, serving essential sectors such as medical, automation, semiconductor, and automotive industries with exceptional distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an impressive fleet of over 300 of the industry's most cutting-edge machinery units. This elite ensemble ensures we maintain a vast and dynamic catalog of equipment categories, allowing us to lead the charge in innovation and adaptability across various industrial landscapes. These top-tier branded machinery units are the cornerstone of our precision-focused manufacturing, enabling us to masterfully tackle the multifaceted and demanding machining requirements of an array of industries with exceptional precision and efficiency. Our extensive capabilities guarantee adherence to the pinnacle of quality standards and offer bespoke customization that is meticulously crafted to meet the unique needs of our distinguished clientele.
- With an illustrious 20-year legacy, we harbor a rich reservoir of manufacturing experience, seamlessly interwoven with profound technical expertise and process strengths. This ensures the delivery of superior quality and groundbreaking innovation. Our enduring expertise empowers us to consistently deliver extraordinary products that not only meet but surpass expectations, setting new benchmarks in industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Going Beyond Industry Standards
Every piece of raw material entering our cutting-edge facility is subject to an exhaustive and rigorous evaluation process, establishing a benchmark in quality assurance. Our comprehensive approach includes a thorough analysis of chemical composition and a meticulous examination of physical properties. We insist that each supplier provides a Certificate of Origin, alongside a stamped Declaration of Conformity. This meticulous process ensures only top-notch materials are selected for our precision semiconductor manufacturing solutions, maintaining our high standards of quality and precision.
Rigorous In-Process Quality Control: Striving for Perfection
During the sophisticated machining process, every component is subjected to meticulous scrutiny to ensure its dimensions and tolerances meet our stringent specifications. This diligent, continuous inspection protocol proactively intercepts any potential defects, preventing non-conforming parts from progressing further. Through this vigilant methodology, we significantly reduce the likelihood of producing substandard goods, ensuring outstanding quality is preserved at every production stage.
Proactive and Comprehensive First Article Inspection (FAI): A Foundation for Excellence
Our First Article Inspection (FAI) is the cornerstone of our approach, skillfully identifying and resolving potential production challenges from the start. This proactive strategy ensures issues are nipped in the bud before entering mass production. The comprehensive and precise FAI process is essential for minimizing quality risks, guaranteeing our products consistently meet the highest standards, and demonstrating our unwavering commitment to excellence throughout the entire production cycle.
Thorough and Detailed Final Inspection: The Ultimate Quality Guardian
Before any product leaves our premises, it is subjected to a meticulous and detailed final inspection process. This thorough evaluation covers dimensions, visual appearance, and performance, as well as any customer-specific requirements. Our extensive inspection is a testament to our relentless pursuit of quality, ensuring that every part dispatched meets our stringent standards, delivering only the finest products to our esteemed and valued clientele.
Packaging & Shipping
Company Profile
Since the illustrious inception of Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. in 2009, building upon its foundational vision instituted in 2002, this pioneering company has passionately devoted itself to the mastery of high-precision component machining. Over the past two dynamic decades, Donghui has unwaveringly committed to innovative breakthroughs, rising as trailblazers within the precision engineering sphere. Through relentless technical research and revolutionary advancements, we have crafted an unparalleled legacy as industry pioneers, setting shining benchmarks of excellence that others aspire to reach. We have accumulated an unrivaled wealth of technical expertise, positioning ourselves at the forefront of the industry as market leaders with a stellar reputation for excellence. Our unmatched prowess in precision medical machining services consistently achieves the most exacting tolerances and flawless surface finishes, solidifying our status as the preferred choice in the medical sector. Our precision and reliability are trusted and highly valued, making us an indispensable partner in medical innovation.
With four strategically positioned production bases, nestled within the bustling hubs of Shenzhen and Guiyang, and driven by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This extraordinary chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently not only meet but exceed the diverse needs of our clientele. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and demanding machining tasks with exceptional efficiency and unparalleled quality, further cementing our prestigious reputation for excellence and innovation in the field.
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)