Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere duty; it's a passionate endeavor, embracing both the art and the intricate science of precision manufacturing with unyielding enthusiasm. Our unparalleled expertise stands as a beacon in the high-end component fabrication field, lighting the way to immaculate precision and unrivaled excellence. We are at the forefront of pioneering intelligent automation equipment development and production. Our state-of-the-art solutions serve a myriad of industries, effectively fulfilling a wide array of applications, including:
- Medical and Biotech: Offering meticulously crafted high-precision components and groundbreaking solutions for sophisticated medical devices, consistently maintaining the highest standards of excellence.
- Semiconductors: Enhancing chip production and associated equipment by providing essential core components that are vital to the thriving success of the semiconductor industry.
- New Energy: Actively participating in the dynamic and sustainable progress of pioneering energy equipment, advancing eco-friendly technological innovations.
- Automotive: Supplying essential components that propel innovation within the automotive industry, supporting the growth of smart and electric vehicle technologies.
Main Products
- We specialize in crafting non-standard customized components, serving extensively across the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched 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 extensive capability empowers us to flawlessly 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. This dedication sets us apart as true pioneers in the realm of precision engineering, constantly pushing the boundaries of what's possible.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Examination of Incoming Materials
Each raw material that finds its way into our warehouse undergoes a meticulously exhaustive examination process. Our uncompromising analyses include a thorough evaluation of the chemical composition and an in-depth inspection of the physical properties. We steadfastly uphold our commitment to quality by mandating each supplier to furnish a Certificate of Origin accompanied by a stamped Declaration of Conformity. This ensures the selection of only the finest materials for our precision-driven medical machining services. Our rigorous authentication procedure guarantees that these materials align with the highest standards of integrity and purity, seamlessly integrating with our dedication to exceptional quality.
Intensive In-Process Quality Assurance Excellence
Within our intricate and precise machining operations, every component is subject to meticulous scrutiny to ensure that its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent continuous inspection protocol is strategically crafted to intercept potential defects at an early stage, effectively preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is essential in minimizing the risk of inferior goods, ensuring a superior quality outcome at each step of production, and maintaining excellence throughout the entire process.
Strategic First Article Inspection (FAI) Initiative
Our First Article Inspection (FAI) process stands as a foundational strategy that is pivotal in identifying and resolving potential production challenges at an early stage. This proactive strategy prevents issues from escalating into mass production phases. The comprehensive and precise nature of our FAI process is crucial in minimizing quality risks, guaranteeing that our products consistently reach the apex of standards. This unwavering dedication to excellence permeates every aspect of the production cycle, ensuring that we meet and exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection Process
Before any product departs from our facility, it is subjected to a meticulous and rigorous final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection protocol epitomizes our relentless commitment to quality, guaranteeing that every part dispatched from our facility meets our exacting standards. We are unwavering in delivering only the highest quality products to our esteemed customers, upholding our 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 a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are 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 bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining 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)