Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere duty; it is fueled by an unwavering passion for the artful craft and the exacting science of precision manufacturing. Our unparalleled expertise shines brilliantly as a beacon in the realm of high-end component fabrication, guiding the way to unparalleled precision and excellence. Leading the charge in the creation and production of revolutionary intelligent automation equipment, our state-of-the-art solutions serve an array of industries, seamlessly meeting diverse applications, including:
- Medical and Biotech: Crafting meticulously engineered high-precision components and pioneering solutions for cutting-edge medical devices, committed to maintaining the highest quality standards.
- Semiconductors: Supporting chip production and its essential equipment through the provision of critical core components that are vital to the industry's triumphs.
- New Energy: Driving the fervent and sustainable growth of innovative energy equipment, advancing eco-friendly technological breakthroughs.
- Automotive: Supplying essential components that propel innovation in the automotive sector, contributing to the evolution of smart and electric vehicles.
Main Products
- We are specialists in non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries, ensuring precision and unmatched 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. 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, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. leverages vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This commitment sets us apart as pioneers in the realm of precision engineering, where each product crafted, such as our High-Quality Medical Machining Parts with Ra Surface Roughness Variations, epitomizes excellence and cutting-edge technology.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Verification
Every raw material entering our facility is subject to an exhaustive and meticulous evaluation process. Our thorough examinations encompass detailed chemical composition analysis and an extensive inspection of physical properties. We maintain an unwavering dedication to excellence by requiring every supplier to provide a Certificate of Origin and a verified Declaration of Conformity. This ensures that only the highest caliber materials are chosen for our precision medical machining services. Our stringent authentication process guarantees that these materials adhere to the loftiest standards of purity and integrity, seamlessly aligning with our steadfast pledge to quality.
Rigorous In-Process Quality Monitoring
Within our sophisticated and precise machining operations, each component is carefully scrutinized to ensure its dimensions and tolerances not only meet but surpass our demanding specifications. Our diligent and continuous inspection protocol is strategically crafted to detect potential defects at an early stage, thereby preventing non-conforming parts from advancing further. This vigilant strategy is crucial in minimizing the risk of substandard goods, assuring superior quality at every phase of production, and sustaining excellence throughout the entire process.
Strategic First Article Inspection for Optimal Quality
Our First Article Inspection (FAI) process is a foundational strategy essential for identifying and rectifying potential production challenges early on. This proactive methodology prevents issues from escalating into full-scale production. The comprehensive and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the utmost standards of excellence. This devotion to superior quality permeates every facet of the production cycle, guaranteeing that we consistently meet and exceed the highest quality benchmarks.
Thorough and Detailed Final Inspection
Before any product departs from our facility, it undergoes a thorough and detailed final inspection. This rigorous process meticulously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process exemplifies our relentless dedication to quality, ensuring that every part delivered from our facility meets our exacting standards. We are unwavering in our commitment to delivering only the highest quality products to our esteemed 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. 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 an unparalleled wealth of technical expertise, elevating our market reputation and solidifying our leadership in the industry. Our proficiency in precision medical machining services is 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 vibrant and bustling hubs of Shenzhen and Guiyang, powered by a dedicated and talented workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This seamless chain harmoniously unites research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our customers with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, continually enhancing 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)