Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our devotion is not just a responsibility but a harmonious fusion of ardor and expertise in the exquisite craft and painstaking science of precision manufacturing. Our unrivaled proficiency illuminates the domain of high-end component manufacturing, paving the path to absolute precision and unmatched excellence. As trailblazers of innovation, we excel in designing and producing revolutionary intelligent automation equipment. Our advanced solutions seamlessly serve a diverse spectrum of industries, addressing an extensive range of applications and requirements, such as:
- Medical and Biotech: Providing meticulously crafted, high-precision components and cutting-edge solutions for advanced medical devices, upholding the highest quality standards.
- Semiconductors: Elevating chip manufacturing and associated machinery by delivering core components crucial to the semiconductor industry's dynamic growth.
- New Energy: Actively engaging in the vibrant and sustainable advancement of next-generation energy equipment, championing eco-friendly technological progress.
- Automotive: Supplying essential components that propel innovation within the automotive sector, supporting the progression of intelligent and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively servicing the medical, automation, semiconductor, and automotive industries, guaranteeing exceptional 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 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 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.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Commitment to Unrivaled Purity and Integrity
Each raw material that steps into our prestigious warehouse embarks on a thorough and exhaustive examination journey, where no detail is too small to escape our notice. Our rigorous analyses scrutinize the chemical essences and physical attributes, ensuring we accept nothing but the crème de la crème. Suppliers must provide a Certificate of Origin and a stamped Declaration of Conformity, standing as a testament to our unyielding pursuit of excellence. Only materials reaching the zenith of purity and integrity are deemed worthy for our high-precision medical machining services. Our authentication process serves as a vigilant guardian, unwavering in its mission to uphold exceptional quality at every turn.
Intensive In-Process Quality Assurance: Mastery of Precision at Every Phase
In the harmonious flow of our precise machining operations, each component undergoes meticulous scrutiny to ensure dimensions and tolerances not only meet but exceed our ambitious specifications. Our continuous inspection protocol is a expertly crafted symphony, skilled at identifying potential discrepancies at their nascent stage, effectively preventing any non-conforming parts from advancing. This vigilant methodology is crucial in mitigating the risk of substandard goods, safeguarding the superior quality in every production phase, and ensuring our standard of excellence is maintained throughout the entire orchestration of processes.
Strategic First Article Inspection (FAI): Foreseeing Flawlessness
Our First Article Inspection (FAI) is a strategic cornerstone, empowered with foresight to identify and resolve potential production hurdles at their very inception. This proactive approach acts as an indomitable safeguard, preventing issues from escalating into mass production conundrums. The exhaustive and precise nature of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of excellence. This unwavering commitment to perfection is intricately woven into every step of the production journey, ensuring our standards consistently surpass the highest benchmarks of quality.
Meticulous Comprehensive Final Inspection: The Apex of Perfection
Before any product exits our facility, it is subjected to a final inspection of unparalleled meticulousness and rigor. This stringent process scrutinizes dimensions, visual appeal, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection serves not just as a testament, but as a commitment to our relentless pursuit of quality, ensuring every product leaving our facility is a luminary of our exacting standards. Our dedication to delivering only the highest quality products to our esteemed customers upholds our reputation for unmatched excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, building upon its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a leader in the realm of high-precision basic component machining. With an unwavering commitment to groundbreaking innovation over the past two decades, we have delved deeply into technical research, securing our position as pioneers and innovators in the field of precision engineering. We have amassed an extraordinary wealth of technical expertise, cultivating a stellar market reputation that sets us apart as an industry leader. Our unmatched capabilities in precision medical machining services enable us to consistently achieve incredibly tight tolerances and impeccable surface finishes, positioning us as the premier choice in the medical sector.
With four strategically positioned production bases in the bustling hubs of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has established a robust, vertically integrated industry chain. This chain seamlessly integrates research and development, production, and delivery, ensuring we consistently meet and exceed the diverse needs of our clients with outstanding efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to handle the most complex and challenging machining tasks, maintaining our esteemed reputation for excellence and trailblazing 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)