Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is more than just a responsibility; it is a passionate pursuit of the art and meticulous science of precision manufacturing. Our unrivaled proficiency is the beacon in the field of high-end component fabrication, lighting the way towards meticulous precision. We are trailblazers in the creation and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions span multiple industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously crafted high-precision components and groundbreaking solutions for advanced medical devices, upholding the utmost quality standards.
- Semiconductors: Powering chip production and its associated equipment by providing essential core components that are pivotal to the industry's triumph.
- New Energy: Actively participating in the vigorous and sustainable development of innovative energy equipment, promoting eco-friendly technological advances.
- Automotive: Delivering essential components that drive innovation within the automotive sector, aiding the transformation of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries, ensuring unparalleled 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, empowering us with the capability to masterfully address a comprehensive spectrum of equipment categories. Harnessing this powerful fleet, we skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency, ensuring our esteemed clients highest satisfaction.
- With a rich history spanning over two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing not just exceptional quality but also forward-thinking innovation. This strategic combination sets us apart as trailblazers in the realm of precision engineering, consistently pushing the boundaries of what is possible.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Precision in Incoming Material Examination
Every piece of raw material that enters our warehouse is meticulously subjected to an exhaustive and stringent examination process. Our rigorous analyses encompass comprehensive evaluations of the chemical composition and a thorough inspection of the physical properties. We uphold an unwavering dedication to quality by mandating that every supplier provides both a Certificate of Origin and a stamped Declaration of Conformity. This robust procedure guarantees that only the finest materials are chosen for our high-precision medical machining services. Our scrupulous authentication process ensures these materials meet the pinnacle of integrity and purity standards, seamlessly aligning with our steadfast commitment to delivering unparalleled quality.
Intensive Assurance of Quality Throughout the Machining Process
Within our complex and precise machining operations, every component is vigilantly scrutinized to guarantee its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and uninterrupted inspection protocol is strategically crafted to intercept potential defects early, thus preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial for minimizing the risk of substandard goods, ensuring superior quality at each stage of production, and maintaining excellence across the entire process.
Strategic Excellence in First Article Inspection (FAI)
Our First Article Inspection (FAI) process acts as a pivotal strategy essential for 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 process is indispensable in minimizing quality risks, ensuring our products consistently achieve the highest standards. This unwavering dedication to excellence permeates every facet of the production cycle, ensuring we meet and exceed the loftiest quality benchmarks.
Meticulous and Comprehensive Final Inspection
Before any product departs our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements with precision. Our exhaustive inspection process serves as a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are resolute in delivering only the highest quality products to our valued customers, steadfastly upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, building upon the foundation established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a formidable force in the realm of high-precision component machining. With an unfaltering commitment to cutting-edge innovation over the past two decades, we have immersed ourselves in groundbreaking technical research, firmly positioning ourselves as visionaries at the forefront of precision engineering. We have accumulated a vast reservoir of technical expertise, garnering an enviable market reputation that distinguishes us as industry trailblazers. Our precision medical machining services stand unparalleled, consistently achieving remarkably tight tolerances and flawless surface finishes. This unwavering excellence cements our status as the preferred partner in the highly demanding medical sector.
With four strategically positioned production bases nestled in the vibrant hubs of Shenzhen and Guiyang, fueled by a committed workforce exceeding 400 skilled employees, Donghui has forged a formidable and vertically integrated industry chain. This seamless integration of research and development, production, and delivery empowers us to meet and surpass the diverse needs of our clients with exceptional efficiency and unmatched quality. Our cutting-edge facilities are equipped to tackle the most intricate and demanding machining challenges, perpetuating 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)