Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere duty, emerging as a harmonious blend of passion and expertise. We are devoted to the art and meticulous science of precision manufacturing, where every creation reflects our dedication to the exquisite craft. Our unparalleled expertise shines brightly in the realm of high-end component manufacturing. With each innovation, we carve pathways to ultimate precision and unrivaled excellence, setting benchmarks in the industry. Pioneers of innovation, we specialize in the design and manufacture of groundbreaking intelligent automation equipment. Our cutting-edge solutions are tailored to seamlessly cater to a multitude of industries, meeting a vast array of applications and requirements with exceptional finesse, such as:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions for sophisticated medical devices, we uphold the highest standards of quality with an unwavering commitment to excellence.
- Semiconductors: Enhancing chip manufacturing and related machinery by providing essential components that are pivotal to the dynamic evolution of the semiconductor industry.
- New Energy: Committed to the dynamic and sustainable development of next-generation energy equipment, we lead the charge in eco-friendly technological advancements.
- Automotive: Supplying critical components that drive innovation in the automotive sector, we support the advancement of intelligent and electric vehicles, steering the future of mobility.
Main Products
- We specialize in crafting non-standard, customized components, serving the medical, automation, semiconductor, and automotive industries with exceptional precision and superior quality, ensuring that every product reflects our commitment to unmatched excellence.
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: Commitment to Unrivaled Purity and Integrity
Every raw material entering our distinguished warehouse embarks on an extraordinary inspection journey where no detail is too minute to be overlooked. Our rigorous analyses meticulously scrutinize the chemical and physical attributes, ensuring only the finest quality materials are accepted. Suppliers must provide a Certificate of Origin and a stamped Declaration of Conformity, underscoring our relentless quest for perfection. Only materials that meet the highest standards of purity and integrity are deemed suitable for our high-precision medical machining services. Our authentication process acts as a steadfast guardian, unwavering in its mission to uphold unparalleled quality at every juncture.
Intensive In-Process Quality Assurance: Precision Mastery at Every Stage
In the seamless flow of our precise machining processes, every component undergoes meticulous scrutiny to ensure dimensions and tolerances not only meet but exceed our ambitious benchmarks. Our continuous inspection protocol is an expertly crafted symphony, adept at identifying potential discrepancies at their earliest stages, effectively preventing non-conforming parts from advancing. This vigilant methodology is crucial in mitigating the risk of substandard products, safeguarding superior quality in every production phase, and ensuring our standard of excellence is upheld throughout the entire orchestration of processes.
Strategic First Article Inspection (FAI): Foreseeing Flawlessness
Our First Article Inspection (FAI) is a strategic pillar, empowered with foresight to identify and resolve potential production challenges at their inception. This proactive approach serves as an unyielding safeguard, preventing issues from escalating into mass production dilemmas. 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 departs our facility, it undergoes a final inspection of unparalleled meticulousness and precision. This stringent process scrutinizes dimensions, visual appeal, performance, and any customer-specific requirements with extraordinary accuracy. Our comprehensive inspection stands not just as a testament, but as a commitment to our relentless pursuit of quality, ensuring every product leaving our facility exemplifies 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 beacon of excellence 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 both pioneers and trailblazers in the field of precision engineering. Our journey is marked by relentless pursuit of quality and a passion for pushing the boundaries of what's possible in precision craftsmanship. We have amassed an extraordinary wealth of technical expertise, cultivating a stellar market reputation that sets us apart as an industry leader in precision solutions. 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. This unparalleled expertise not only meets but exceeds the rigorous demands of the industry, ensuring our dominance as the go-to provider for precision excellence.
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 firmly 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. Our forward-thinking approach and commitment to exceptional service distinguish us in the competitive landscape, solidifying our status as a visionary leader in the precision machining industry.
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)