Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere duty, driven by an unwavering passion for the exquisite artistry and precise science that defines our precision manufacturing. Our unmatched expertise radiates in the realm of high-end component fabrication, leading the charge towards unparalleled precision and outstanding excellence. We are pioneers in developing and delivering cutting-edge intelligent automation equipment. Our state-of-the-art solutions cater to a myriad of industries, effectively addressing a diverse array of applications, including:
- Medical and Biotech: Offering meticulously crafted, high-precision components and breakthrough solutions for the most advanced medical devices, while consistently adhering to the pinnacle of quality standards.
- Semiconductors: Elevating chip production and its associated equipment by delivering essential core components that are crucial for the industry's success and evolution.
- New Energy: Actively engaging in the dynamic and sustainable evolution of innovative energy equipment, fostering eco-friendly technological advancements.
- Automotive: Supplying key components that fuel innovation within the automotive industry, supporting the advancement and expansion of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and superior quality at every turn.
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. Our extensive collection is a testament to our commitment to precision and versatility. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries, delivering unrivaled precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering, making us a trusted partner in the industry.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unmatched Precision in Incoming Material Inspection
Every single raw material that enters our threshold embarks on an exhaustive journey of rigorous examination. Our meticulous process entails intricate analyses of both chemical composition and physical characteristics. To uphold excellence, we insist that every supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This rigorous selection process ensures only the highest quality materials are chosen for our precision medical machining services. Our stringent validation procedures guarantee that these materials adhere to the highest standards of integrity and purity, resonating with our steadfast commitment to unmatched quality.
Rigorous In-Process Quality Assurance
During our complex and high-stakes machining operations, each component undergoes an exhaustive and meticulous scrutiny to ensure its dimensions and tolerances meet and exceed our rigorous specifications. Our vigilant, continuous inspection protocol is strategically designed to identify and rectify potential discrepancies at the earliest stage possible. This proactive approach is instrumental in preventing the progression of non-conforming parts to subsequent stages, significantly reducing the risk of substandard products. This ensures that supreme quality is consistently maintained at every phase of the production process, reflecting our relentless pursuit of excellence.
Strategic First Article Inspection (FAI) Protocol
Our First Article Inspection (FAI) is more than a process; it is a cornerstone strategy pivotal in preemptively identifying and resolving potential production challenges. This forward-thinking approach is vital in preventing issues from escalating into mass production. The exhaustive and precise methodology of our FAI is integral in mitigating quality risks, ensuring our products consistently reach the pinnacle of standards. This dedication to excellence is woven into every facet of the production cycle, ensuring our offerings not only meet but consistently surpass the highest quality benchmarks.
Thorough and Comprehensive Final Inspection Protocol
Before any product departs from our facility, it undergoes an exacting and all-encompassing final inspection. This meticulous process scrutinizes every aspect, from dimensions and visual appeal to performance and unique customer specifications. Our comprehensive inspection protocol stands as a testament to our relentless pursuit of quality, ensuring every component released aligns with our exacting standards. Our commitment remains unwavering in delivering only the finest quality products to our valued customers, upholding our esteemed reputation for excellence and steadfast 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)