Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends obligation; it's a passionate pursuit of the art and science of precision manufacturing. We are fueled by an unwavering dedication to excellence, ensuring that each of our products embodies our relentless commitment to superior quality and groundbreaking innovation. Our unparalleled expertise is a shining beacon in the realm of high-end component fabrication, lighting the way to achieving meticulous precision and perfection, and firmly establishing our reputation as industry leaders. We stand at the forefront of developing and producing transformative intelligent automation equipment. Our cutting-edge solutions cater to a vast array of industries, skillfully addressing diverse applications, including:
- Medical and Biotech Sector: Delivering meticulously engineered high-precision components and revolutionary solutions for state-of-the-art medical devices, ensuring we maintain the highest quality standards of excellence and innovation.
- Semiconductors Industry: Empowering the semiconductor sector and its associated equipment by providing vital core components crucial to the consistent success of the industry, driving progress and technological advancement.
- New Energy Innovations: Actively driving the dynamic and sustainable advancement of cutting-edge energy equipment, championing eco-friendly technological evolution with a steadfast commitment to a greener future.
- Automotive Industry: Supplying essential components that propel innovation within the automotive sector, supporting the evolution of smart and electric vehicles, and fostering industry growth and transformation.
Core Products
- We excel in crafting non-standard customized components, serving industries such as medical, automation, semiconductor, and automotive with distinction. We ensure unmatched precision and superior quality in every product, aligned with our vision of excellence.
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 unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with a level of precision and efficiency that is truly unmatched. Our fleet's versatility and exceptional capability ensure that no machining challenge is too daunting, making us the go-to solution for industries seeking excellence.
- With a rich history spanning two decades, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. harnesses vast production experience coupled with substantial technical and process prowess. This ensures not only exceptional quality but also innovative thinking, setting us apart as pioneering leaders in the realm of precision engineering. Our unwavering commitment to quality and innovation has solidified our reputation as an industry vanguard, continuously pushing boundaries and setting benchmarks for excellence.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Peerless Evaluation of Incoming Materials
Upon arrival at our advanced warehouse, every piece of raw material is subjected to an exhaustive and meticulous examination process that sets a precedent in thoroughness. Our in-depth analyses cover every aspect, from scrutinizing chemical compositions to a thorough inspection of physical attributes. We are unwavering in our pursuit of supreme quality, mandating that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the most exceptional materials are chosen for our high-precision medical machining services. Our rigorous authentication process guarantees materials of unparalleled integrity and purity, reflecting our steadfast dedication to outstanding excellence and superiority.
Meticulous In-Process Assurance of Quality
Throughout our sophisticated machining processes, each component undergoes rigorous scrutiny to ensure that dimensions and tolerances not only meet but surpass our stringent specifications. Our meticulous inspection protocol is crafted to detect potential deviations at the earliest stages, effectively preventing non-conforming parts from proceeding. This vigilant methodology minimizes the possibility of substandard outputs, assures unrivaled quality across all phases, and maintains excellence throughout the entire production journey.
Strategically-Oriented First Article Inspection (FAI)
Our First Article Inspection (FAI) procedure is a strategic cornerstone, essential for identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are addressed well before reaching mass production. The comprehensive precision of our FAI process is crucial in mitigating quality risks, consistently elevating our products to the zenith of standards. Our unwavering commitment to excellence permeates every facet of the production cycle, ensuring we continuously exceed the highest quality benchmarks.
Meticulous and Comprehensive Final Quality Inspection
Before any product departs our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous process assesses dimensions, visual appearance, and performance while adhering to any customer-specific requirements. Our exhaustive inspection regimen is a testament to our relentless pursuit of quality, ensuring every part that exits our facility meets our exacting standards. We are uncompromising in delivering only the finest products to our esteemed customers, continually reinforcing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its vibrant inception in 2009 and with roots deeply embedded since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a luminary in the domain of high-precision component machining. With an unwavering dedication to pioneering innovation over the past two decades, we have immersed ourselves in advanced technical research, establishing a legacy as true trailblazers in precision engineering. At Donghui, we have cultivated an extraordinary reservoir of technical acumen, earning a stellar market reputation that distinctly positions us as an industry leader. Our unparalleled proficiency in precision medical machining services consistently delivers incredibly tight tolerances and impeccably flawless surface finishes, making us the preferred partner in the exacting medical sector.
With an impressive array of resources, we proudly operate four strategically located production bases, thriving within the energetic and bustling centers of Shenzhen and Guiyang, supported by our devoted and skilled workforce of over 400 highly trained employees. Donghui has meticulously developed a robust and vertically integrated industry chain. This seamless network expertly intertwines research and development, production, and delivery, ensuring that we not only meet but consistently surpass the diverse needs and expectations of our esteemed customers with exceptional efficiency and unmatched quality. Our cutting-edge facilities are exquisitely equipped to tackle the most complex and demanding machining tasks, consistently upholding our reputation for excellence and innovative breakthroughs.
Captivating 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)