Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not merely committed; our dedication is fueled by an ardent passion for the elegant art and precise science of high-precision manufacturing. Our unparalleled expertise shines brightly in the world of high-end component fabrication, serving as a beacon that guides towards uncompromising precision. We are trailblazers in the creation and advancement of revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a diverse array of industries, expertly tackling varied applications, including:
- Medical and Biotech: Elevating the standards of modern medical technology, we deliver finely crafted high-precision components and groundbreaking solutions for cutting-edge medical devices.
- Semiconductors: Boosting the semiconductor sector by providing essential core components, pivotal to the success of chip production and its related machinery.
- New Energy: Actively participating in the dynamic and sustainable development of forward-thinking energy equipment, driving eco-conscious technological advancement.
- Automotive: Supplying crucial components that invigorate innovation within the automotive industry, supporting the transformation of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components catered to the medical, automation, semiconductor, and automotive sectors, guaranteeing peerless precision and superior quality.
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 unparalleled precision and efficiency. Such a vast and versatile range of machinery ensures that we can cater to specialized and complex requirements, delivering solutions that are tailor-made and unmatched in quality.
- 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 commitment to excellence is woven into our DNA, driving us to continually refine and redefine the standards of the industry, making us a trusted partner in precision and innovative engineering solutions.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Outstanding Incoming Material Verification
Every raw material entering our sophisticated warehouse undergoes an exhaustive and meticulous examination process, ensuring only the best make the cut. This includes a profound analysis of the chemical composition and a detailed inspection of physical properties. We are committed to unparalleled quality, demanding that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. These steps ensure that only the highest caliber materials contribute to our precision medical machining services. Our rigorous authentication process safeguards our materials' integrity and purity, embodying our unyielding dedication to quality.
Rigorous In-Process Quality Assurance
Amidst our intricate and precise machining operations, each component is meticulously examined to not only meet but exceed our stringent specifications. Our persistent and strategic inspection protocol is expertly crafted to catch potential defects early, preventing non-conforming parts from advancing to later stages. This vigilant and preventive approach is crucial in mitigating the risk of substandard goods, ensuring superior quality at every step of production, and maintaining our commitment to excellence throughout the entire process.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) serves as a vital strategy, critical in the early identification and resolution of potential production challenges. This proactive approach effectively prevents issues from escalating into mass production. The comprehensive and precise nature of our FAI is essential in minimizing quality risks, ensuring our products consistently reach the highest echelons of standards. This devotion to excellence permeates every facet of the production cycle, ensuring we consistently meet and exceed superior quality benchmarks.
Meticulous and Thorough Final Inspection
Before any product departs from our facility, it undergoes an exhaustive and meticulous final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process stands as a tribute to our unwavering dedication to quality, ensuring that every part dispatched from our facility aligns with our exacting standards. We are resolute in delivering only the finest quality products to our valued customers, upholding our esteemed reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of excellence in the realm of high-precision basic component machining. With an unwavering commitment to innovation and excellence over the past two decades, we have delved into technical research, establishing ourselves as trailblazers in the field of precision engineering. We have accumulated a wealth of technical expertise, earning an impeccable market reputation that distinguishes us as a leader in the industry. Our prowess in precision medical machining services remains unrivaled, consistently achieving extraordinarily tight tolerances and flawless surface finishes, making us the preferred partner in the medical sector.
With four strategically placed production bases in the thriving metropolises of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has engineered a robust and vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our customers with unparalleled efficiency and exceptional quality. Our state-of-the-art facilities are equipped to tackle the most intricate and demanding machining tasks, bolstering 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)