Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our mission extends well beyond a mere sense of duty; it is a passionate commitment to mastering the intricate art and science of precision manufacturing. Driven by an inspired pursuit of excellence, we ensure that each of our products stands as a beacon of our unwavering devotion to quality and innovation. Our unparalleled expertise shines brightly in the realm of high-end component fabrication, illuminating the path to achieving meticulous precision and impeccable perfection. This secures our prestigious status as trailblazers in the industry. We lead the charge in developing and producing cutting-edge intelligent automation equipment. Our innovative solutions cater to a vast array of industries, expertly meeting diverse applications, including:
- Medical and Biotech Sector: We offer meticulously designed high-precision components and groundbreaking solutions for advanced medical devices, ensuring compliance with the highest standards of quality and innovation.
- Semiconductors Industry: We empower the chip production sector and its supporting equipment by providing essential core components crucial for the robust success of the industry, fostering progress and innovation.
- New Energy Innovations: We are actively engaged in the vibrant and sustainable development of pioneering energy equipment, spearheading the movement toward eco-friendly technological advancement with a steadfast commitment to a sustainable future.
- Automotive Industry: We offer vital components that drive innovation within the automotive sector, supporting the progress of smart and electric vehicles, and nurturing industry growth and transformation.
Core Products
- We are specialists in crafting custom non-standard components, extensively serving industries such as medical, automation, semiconductor, and automotive. We pledge unmatched precision and superior quality in every product, embodying our vision of exceptional excellence.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, allowing us to masterfully conquer an extensive range of equipment categories. This unmatched capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with precision and efficiency that remain unparalleled. The versatility and exceptional capability of our fleet ensure no machining challenge is too daunting, making us the ultimate solution for industries striving for excellence.
- With a rich legacy spanning two decades, we leverage extensive production experience combined with substantial technical and process prowess. This dedication ensures not only outstanding 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.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unmatched Excellence in Raw Material Evaluation
Each raw material that graces our warehouse is embraced by an exhaustive and meticulous examination process, setting a revolutionary standard in both rigor and thoroughness. Our precision analyses cover every conceivable detail, from expertly scrutinizing chemical compositions to a comprehensive inspection of physical properties. We hold an unwavering commitment to unsurpassed quality, requiring every supplier to provide a Certificate of Origin alongside a stamped Declaration of Conformity. This mandate ensures only the most elite materials are chosen for our high-precision medical machining services. Our stringent authentication process guarantees materials of the highest integrity and purity, perfectly mirroring our steadfast dedication to excellence and superiority.
Meticulous In-Process Quality Assurance
During our meticulously orchestrated machining operations, each component undergoes a stringent scrutiny designed to ensure dimensions and tolerances not only meet but exceed our rigorous specifications. Our carefully crafted inspection protocol is strategically developed to detect potential defects at the earliest stages, effectively preventing non-conforming parts from progressing further in the process. This vigilant approach significantly reduces the risk of substandard outputs, guaranteeing superior quality at every phase and sustaining excellence throughout the entire production journey.
First Article Inspection (FAI) with Unyielding Precision
Our First Article Inspection (FAI) process is a cornerstone strategy, critical in identifying and resolving potential production challenges from the very beginning. This proactive methodology ensures that issues are addressed well before mass production ensues. The comprehensive precision of our FAI process is essential in mitigating quality risks, consistently elevating our products to the pinnacle of the highest standards. Our steadfast commitment to excellence permeates every facet of the production cycle, ensuring we continually surpass even the loftiest quality benchmarks.
Thorough and Comprehensive Final Quality Assurance
Before any product is released from our facility, it undergoes an intensive and comprehensive final inspection. This rigorous process evaluates dimensions, visual appearance, and performance, meticulously adhering to any customer-specific requirements. Our exhaustive inspection regimen stands as a testament to our relentless pursuit of quality, ensuring that every part leaving our facility aligns perfectly with our exacting standards. We are unwavering in our commitment to 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)