Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend basic manufacturing, driven by an earnest passion for the refined artistry and intricate science of precision production. Our commitment is unwavering, born from a desire to redefine excellence in every meticulous detail. With unparalleled expertise, we illuminate the landscape of high-end component fabrication, serving as a beacon of meticulous precision and quality assurance. At the forefront of innovation, we develop and produce revolutionary intelligent automation equipment. Our advanced solutions span a variety of industries, expertly addressing a wide array of applications, including:
- Medical and Biotech: We deliver exquisitely engineered high-precision components and forward-thinking solutions for cutting-edge medical devices, consistently upholding the highest quality standards.
- Semiconductors: We empower the semiconductor industry with essential core components, vital for chip production and its related equipment, driving the industry's success.
- New Energy: We are at the forefront of sustainable advancement, developing innovative energy equipment to propel eco-conscious technological progress.
- Automotive: We provide indispensable components that foster innovation within the automotive industry, supporting the evolution of smart and electric vehicles.
Main Products
- Our expertise lies in crafting non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors, where precision meets unparalleled quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned and meticulously maintained machines, each representing the pinnacle of technological advancement.This impressive capability enables us to expertly manage and address a comprehensive spectrum of equipment categories. We are thus empowered to skillfully fulfill the intricate machining needs of diverse industries, delivering solutions with unparalleled precision and efficiency. Our dedication ensures every requirement is met with exceptional accuracy, thereby elevating our standing in precision engineering.
- With a rich legacy spanning two decades, we leverage our vast production experience, combined with substantial technical and process expertise. This dynamic synergy guarantees not only exceptional quality but also forward-thinking innovation, firmly setting us apart as pioneers in the realm of precision engineering. Our commitment to excellence and innovation defines our leadership.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Examination
Every raw material entering our warehouse undergoes an exhaustive and stringent examination process, where nothing less than perfection is accepted. Our meticulous analyses delve deep into the chemical composition and meticulously inspect the physical properties, leaving no stone unturned. By maintaining an unwavering commitment to quality, we require every supplier to provide both a Certificate of Origin and a stamped Declaration of Conformity. This rigorous process ensures that only the finest materials, handpicked for their unmatched quality, are utilized in our high-precision medical machining services. Our thorough authentication process guarantees that these materials meet the highest standards of integrity and purity, aligning seamlessly with our steadfast commitment to delivering unparalleled quality.
Rigorous In-Process Quality Assurance
Throughout our intricate and precise machining operations, each component is subject to meticulous scrutiny, ensuring that its dimensions and tolerances are not simply met but are exceeded to our exacting specifications. Our diligent and continuous inspection protocol is strategically engineered to catch potential defects at the earliest opportunity, thereby preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial in minimizing the risk of producing substandard goods, ensuring superior quality through every phase of production, and maintaining our commitment to excellence from start to finish.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy, pivotal for the early identification and resolution of potential production challenges. This proactive measure ensures that issues are addressed before they have a chance to escalate into mass production concerns. The comprehensive precision of our FAI process is indispensable in minimizing quality risks, ensuring that our products consistently reach the apex of industry standards. This relentless dedication to excellence permeates every facet of our production cycle, guaranteeing that we not only meet but consistently surpass the highest quality benchmarks.
Thorough Comprehensive Final Inspection
Before any product departs from our facility, it undergoes a rigorous and comprehensive final inspection. This exhaustive process meticulously evaluates dimensions, visual appearance, performance, and any customer-specific requirements, leaving no aspect overlooked. Our detailed inspection process stands as a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are unwavering in our resolve to deliver only the highest quality products to our valued customers, reinforcing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Incepted in 2009, building on strong foundations laid in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a trailblazer in high-precision component machining. Over the past two decades, our relentless commitment to innovation has positioned us at the forefront of precision engineering, celebrated for our cutting-edge technical research and unmatched expertise that defines industry standards. We have cultivated an extraordinary depth of technical expertise, earning an unparalleled market reputation. Our leadership in the industry is underscored by our unmatched capabilities in precision medical machining services, consistently delivering ultra-tight tolerances and flawless surface finishes. This excellence makes us the go-to choice for discerning clients in the medical sector.
With four strategically positioned production bases in the vibrant economic landscapes of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has engineered a robust, vertically integrated industry chain. This seamless integration of research and development, production, and delivery ensures we not only meet but consistently exceed our customers' diverse needs with remarkable efficiency and superior quality. Our state-of-the-art facilities are designed to handle the most complex and demanding machining tasks, cementing our reputation for unparalleled excellence and pioneering innovation in the field.
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)