Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends mere obligation; it's an inspiring fusion of enthusiasm and expertise in the refined art and meticulous science of precision manufacturing. We proudly set new industry milestones with our revolutionary standards. Our unmatched expertise illuminates the domain of high-end component fabrication, carving a path to flawless precision and exceptional excellence. We are consistently redefining industry paradigms and setting new benchmarks of success. As trailblazers of innovation, we are at the forefront of designing and producing revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly address a diverse spectrum of industries, accommodating an extensive range of applications and requirements, including:
- Medical and Biotech: We offer meticulously crafted, high-precision components and trailblazing solutions for state-of-the-art medical devices, ensuring compliance with the highest quality standards and promoting breakthroughs in healthcare technology.
- Semiconductors: We enhance chip manufacturing and its associated machinery by providing essential core components that are instrumental to the semiconductor industry's swift advancement and transformation.
- New Energy: We are actively engaged in the vibrant and sustainable progression of next-generation energy equipment, spearheading eco-friendly technological innovations that are reshaping the energy landscape.
- Automotive: We deliver critical components that propel innovation within the automotive sector, supporting the advancement of intelligent and electric vehicles with unmatched precision and reliability.
Main Products
- We excel in crafting customized non-standard components, extensively serving the medical, automation, semiconductor, and automotive industries. Our commitment ensures unparalleled precision and top-tier quality, setting us apart in the competitive landscape.
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, setting new benchmarks in performance and reliability. With this extensive array, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of technical prowess, defining new frontiers in the realm of custom machining auto parts. Our commitment to excellence ensures each project is executed with meticulous attention to detail, harmonizing cutting-edge technology with innovative solutions that cater to the ever-evolving needs of our clientele.
- With a rich history spanning two decades, we harness our vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This sets us apart as true pioneers in the realm of precision engineering, consistently delivering top-tier solutions to meet the sophisticated demands of our clients. Our legacy of innovation and success is driven by a commitment to exceeding expectations, positioning us as a leader in the industry. The core of our expertise lies in our ability to transform challenges into opportunities, delivering results that not only satisfy but inspire confidence and trust.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Testament to Unrivaled Purity and Integrity
Each raw material arriving at our prestigious warehouse undergoes a scrupulous and comprehensive examination where no detail is too small to escape our keen scrutiny. Our thorough analysis dives into both the chemical and physical properties, ensuring that only the most impeccable materials are selected. Suppliers must provide a Certificate of Origin and a stamped Declaration of Conformity, representing our unwavering commitment to excellence. Only materials that reach the pinnacle of purity and integrity are considered suitable for our highly precise medical machining services. This stringent authentication process acts as a vigilant guardian, dedicated to maintaining exceptional quality at every step, reinforcing our promise to deliver products of unparalleled refinement and precision.
Intensive In-Process Quality Assurance: Crafting Precision with Mastery at Every Stage
Amidst the harmonious rhythm of our precision machining operations, each component is carefully scrutinized to ensure dimensions and tolerances not only meet but exceed our ambitious goals. Our continuous inspection protocol is a meticulously orchestrated operation, adept at detecting potential discrepancies early on, effectively preventing any non-conforming parts from advancing. This vigilant approach is crucial in reducing the risk of substandard products, safeguarding superior quality at every production phase, and ensuring our standard of excellence is consistently maintained throughout the entire process.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) is a strategic cornerstone, infused with foresight to identify and resolve potential production challenges at their earliest stages. This proactive strategy serves as an unwavering shield, preventing issues from escalating into large-scale production problems. The exhaustive and precise nature of our FAI process is vital in reducing quality risks, ensuring our products consistently attain the highest standards of excellence. This steadfast dedication to perfection is intricately integrated into every stage of the production journey, ensuring our standards consistently surpass the highest levels of quality.
Meticulous Comprehensive Final Inspection: Embodying the Apex of Perfection
Before any product leaves our premises, it undergoes a final inspection of unparalleled meticulousness and exactitude. This rigorous process evaluates dimensions, visual appeal, performance, and any customer-specific requirements with exceptional precision. Our comprehensive inspection not only stands as a testament but as a pledge to our relentless pursuit of quality, ensuring every product exiting our facility exemplifies our exacting standards. Our commitment to delivering only the highest quality products to our esteemed customers strengthens our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009 and building upon the solid foundation established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has soared to prominence as a leading luminary in the realm of high-precision component machining. With an unwavering commitment to pioneering innovation spanning over two decades, we have deeply engaged in technical research, marking our territory as trailblazers and visionary leaders in the precision engineering field. We have cultivated an extraordinary depth of technical expertise, shaping an unparalleled market reputation that distinguishes us as vanguards in the industry. Our unmatched proficiency in precision medical machining services enables us to achieve remarkably tight tolerances and impeccable surface finishes consistently, positioning us as the premier choice in the medical sector.
With four strategically stationed production bases in the vibrant cities of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled employees, Donghui has established a robust, vertically integrated industrial chain that seamlessly merges research and development, production, and delivery. This ensures we consistently meet and exceed the diverse demands of our clients with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to tackle the most intricate and demanding machining challenges, maintaining our esteemed 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)