Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere duty; it embodies a passionate zeal for the refined artistry and meticulous science of precision manufacturing, a testament to our unparalleled dedication. Our unrivaled expertise illuminates the world of elite component fabrication, serving as a beacon of meticulous precision and guiding innovation across the industry. We are at the forefront of creating and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions cater to an array of industries, effectively addressing diverse applications, including the following:
- Medical and Biotech Innovations: We deliver meticulously crafted high-precision components and inventive solutions for cutting-edge medical devices, consistently upholding the highest quality standards in the industry.
- Semiconductor Advancements: We empower chip production and related equipment by providing essential core components, which are pivotal to the industry's continued success and advancement.
- Pioneering New Energy Solutions: Our commitment to sustainable innovation propels the development of groundbreaking energy equipment, driving eco-friendly technological progress with vigor.
- Automotive Innovation: We supply vital components that propel innovation within the automotive sector, supporting the evolution and advancement of smart and electric vehicles.
Core Product Offerings
- We specialize in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries. Our unwavering commitment ensures unmatched precision and superior quality in all our products.
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.
- 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.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
In our pursuit of delivering unparalleled excellence in medical machining parts, every raw material entering our facility is subjected to a comprehensive and rigorous examination process. This meticulous scrutiny involves a detailed analysis of the chemical composition and an exhaustive inspection of physical characteristics, ensuring materials of the highest calibre are used. We demand a Certificate of Origin and a stamped Declaration of Conformity from every supplier, affirming our unwavering commitment to quality. Our stringent authentication process guarantees materials of unmatched integrity and purity, perfectly aligned with our dedication to superior craftsmanship.
Intensive In-Process Quality Assurance
During our sophisticated and precise machining operations, each component undergoes rigorous scrutiny to ensure dimensions and tolerances not only meet but surpass our demanding specifications. Our continuous and diligent inspection protocol is strategically implemented to identify potential defects early, preventing non-conforming parts from advancing further in the production process. This vigilant approach is instrumental in minimizing substandard goods, guaranteeing superior quality at every production stage, and sustaining excellence throughout.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a critical strategy in identifying and resolving potential production challenges at the outset. This proactive measure forestalls issues from escalating into mass production scenarios. The thorough and precise nature of our FAI process is vital for minimizing quality risks, ensuring our products consistently achieve the zenith of quality standards. Our unyielding dedication to excellence is evident in every aspect of the production cycle, ensuring that we not only meet but exceed the loftiest benchmarks of quality.
Meticulous Comprehensive Final Inspection
Prior to any product leaving our premises, it undergoes a meticulous and exhaustive final inspection. This crucial process rigorously assesses dimensions, visual appearance, performance, and any specific customer requirements. Our comprehensive inspection embodies our relentless dedication to quality, ensuring each part dispatched meets our stringent standards. We are committed to delivering only the highest quality products to our valued customers, reinforcing our reputation for reliability and excellence.
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 unparalleled expertise in the realm of high-precision basic component machining. With an unwavering dedication to relentless innovation over the past two decades, we have delved deep into groundbreaking technical research, establishing ourselves as pioneers in the field of precision engineering. At Shenzhen Donghui, we have amassed an extraordinary wealth of technical expertise, earning a stellar market reputation that distinctly sets us apart as an industry leader. Our unmatched capabilities in precision medical machining services consistently achieve incredibly tight tolerances and flawless surface finishes, making us the indisputable preferred choice in the ever-evolving medical sector.
Empowered by four strategically located production bases, nestled in the dynamic and bustling hubs of Shenzhen and Guiyang, reinforced by a dedicated workforce of over 400 highly skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This expertly woven chain seamlessly merges research and development, cutting-edge production, and timely delivery, ensuring we not only meet but consistently exceed the diverse needs of our customers with outstanding efficiency and unmatched quality. Our state-of-the-art facilities are meticulously equipped to handle the most intricate and demanding machining tasks, maintaining our unyielding 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)