Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication is not just a duty-it is an impassioned commitment to the artful craft and precise science of world-class manufacturing, where every detail is honed with expertise. Our unparalleled mastery shines brightly in the high-end component fabrication industry, serving as a beacon of excellence that guides the way to unmatched precision and quality. We are at the forefront of creating and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions span multiple industries, expertly addressing diverse needs, including:
- Medical and Biotech: Meticulously crafted high-precision components and innovative solutions for cutting-edge medical devices, ensuring the utmost adherence to the highest quality standards.
- Semiconductors: Elevating chip manufacturing and related equipment with essential core components that are indispensable for the industry's prosperity.
- New Energy: Actively contributing to the dynamic and sustainable development of innovative energy equipment, promoting eco-friendly technological advancements.
- Automotive: Supplying critical components that drive innovation in the automotive sector, fostering the advancement of intelligent and electric vehicles.
Main Products
- We excel in the creation of non-standard customized components, serving extensively across the medical, automation, semiconductor, and automotive industries, ensuring precision and quality that are second to none.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, each a testament to cutting-edge technology and precision.This impressive array enables us to masterfully address a comprehensive spectrum of equipment categories, empowering us to skillfully fulfill the intricate machining requirements of diverse industries with unparalleled precision and unrivaled 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 true pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Remarkable Incoming Material Examination
Every piece of raw material that arrives at our warehouse is subjected to a thorough and comprehensive examination process, which leaves no stone unturned. Our meticulous assessment delves into the chemical composition and conducts a thorough inspection of the physical properties. We uphold an unwavering commitment to quality by mandating that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This robust screening ensures only the finest materials are chosen for our high-precision medical machining services. Our fastidious authentication process certifies that these materials meet the pinnacle of integrity and purity, perfectly aligning with our relentless pursuit of excellence.
Rigorous In-Process Quality Assurance
Throughout our intricate and precision-driven machining operations, each component is meticulously examined to ensure that its dimensions and tolerances surpass our stringent specifications. Our diligent and continuous inspection protocol is strategically engineered to detect potential defects at an early stage, thereby preventing any non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial in mitigating the risk of substandard products, ensuring exceptional quality at every production phase, and maintaining unparalleled excellence across the entire process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy that is vital for pinpointing and resolving potential production challenges early in the process. This proactive method prevents issues from escalating into mass production challenges. The comprehensive and precise nature of our FAI process is indispensable in reducing quality risks, ensuring our products consistently reach the zenith of standards. This unwavering dedication to excellence permeates every aspect of the production cycle, guaranteeing we consistently meet and exceed the highest quality benchmarks.
Thorough Comprehensive Final Inspection
Before any product departs from our facility, it undergoes a meticulous and exhaustive final inspection. This rigorous process thoroughly evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our extensive inspection is a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our stringent standards. We are unwavering in our mission to deliver only the highest quality products to our esteemed customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its promising inception in 2009, with its pioneering roots planted firmly in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has rapidly ascended as a pillar of expertise and innovation in the realm of high-precision basic component machining. Over the past two decades, our commitment to innovation has been unwavering, catapulting us to the forefront of technical research and establishing us as pioneers in the precision engineering landscape. We have accumulated a profound reservoir of technical expertise, securing an impeccable market reputation that distinguishes us as industry leaders. Our proficiency in precision medical machining services is unparalleled, consistently achieving exceptionally tight tolerances and immaculate surface finishes. This makes us the unequivocal choice for clients within the medical sector, where precision is paramount.
With four strategically positioned production bases within the dynamic corridors of Shenzhen and Guiyang, supported by a dedicated team of over 400 skilled professionals, Donghui has meticulously crafted a resilient and vertically integrated industry chain. This seamlessly interweaves research and development, production, and delivery, ensuring we consistently meet and exceed the varied needs of our clientele with outstanding efficiency and unparalleled quality. Our cutting-edge facilities are adept at managing the most intricate and demanding machining projects, safeguarding 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)