Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven not just by obligation, but by an indomitable enthusiasm for the elegant fusion of artistry and science in precision manufacturing. We continuously strive to transcend the ordinary, reaching the apogee of manufacturing excellence. Our unrivaled proficiency illuminates the realm of elite component fabrication, lighting the path to unmatched accuracy and superior quality. We stand at the cutting edge of crafting and delivering groundbreaking intelligent automation equipment. Our avant-garde solutions seamlessly integrate into a multitude of industries, expertly addressing diverse applications, including:
- Medical and Biotech: Delivering fastidiously crafted, high-precision components alongside pioneering solutions for state-of-the-art medical devices, our commitment to the pinnacle of quality standards remains unwavering.
- Semiconductors: Elevating chip fabrication and its adjunct machinery by delivering essential core components crucial to the industry's triumph and progress.
- New Energy: Fervently engaging in the dynamic and sustainable advancement of innovative energy apparatus, fostering environmentally-friendly technological breakthroughs.
- Automotive: Providing vital components that fuel innovation in the automotive industry, bolstering the advancement and proliferation of smart and electric vehicles.
Main Products
- Our specialization lies in the crafting of non-standard, bespoke components that extensively cater to the medical, automation, semiconductor, and automotive sectors, ensuring unparalleled precision and extraordinary quality at every juncture.
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 capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency. Our state-of-the-art facilities and expansive equipment inventory allow us to tackle both routine and complex projects, ensuring clients receive bespoke solutions tailored to their unique specifications.
- 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, setting us apart as pioneers in the realm of precision engineering. Our sustained commitment to excellence and continual adaptation to emerging technologies make us leaders in delivering reliable and innovative solutions.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Examination of Incoming Materials
Every raw material entering our esteemed facility embarks on a meticulous journey of thorough examination. This comprehensive process delves deeply into both chemical makeup and physical attributes. Our steadfast commitment to quality excellence demands that every supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. Such stringent selection ensures only the finest materials are chosen for our precision medical machining services. Our rigorous validation procedures are a testament to our assurance that these materials meet the highest standards of integrity and purity, reflecting our unwavering dedication to unparalleled quality.
Rigorous In-Process Quality Assurance
Within our complex and high-stakes machining operations, each component undergoes exhaustive scrutiny to ensure dimensions and tolerances not only meet but exceed our rigorous specifications. Our vigilant and continuous inspection protocol is meticulously designed to identify and correct potential discrepancies at the earliest stage. This proactive approach is crucial in preventing non-conforming parts from advancing, significantly minimizing the risk of substandard products. Consequently, supreme quality is consistently maintained throughout the production process, epitomizing our relentless pursuit of excellence.
Strategic Implementation of First Article Inspection (FAI)
Our First Article Inspection (FAI) is more than a procedure; it's a critical strategy that preemptively identifies and resolves potential production challenges. This anticipatory approach is essential in preventing issues from escalating into mass production. The exhaustive and precise nature of our FAI is instrumental in mitigating quality risks, ensuring our products consistently reach the apex of standards. This unwavering commitment to excellence permeates every facet of the production cycle, guaranteeing that our offerings not only meet but surpass the highest quality benchmarks.
Thorough and Comprehensive Final Inspection
Before any product departs from our facility, it undergoes a rigorous and comprehensive final inspection. This meticulous process scrutinizes every detail, from dimensions and visual appeal to performance and specific customer requirements. Our extensive inspection protocol is a testament to our relentless pursuit of quality, ensuring every component released from our facility meets our exacting standards. Our commitment is unwavering in delivering only the finest quality products to our esteemed customers, maintaining our distinguished reputation for excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our reputation for excellence and groundbreaking 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)