Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unwavering commitment to excellence, where passion seamlessly intertwines with our profound expertise in the intricate art and meticulous science of precision manufacturing. We are not just participants; we are the distinguished leaders who consistently elevate industry standards to new heights, setting benchmarks that others aspire to reach. Our unmatched expertise illuminates the path in the realm of high-end component manufacturing, setting the stage for flawless precision and outstanding excellence. With every endeavor, we redefine industry standards, perpetually raising the bar and reshaping the landscape of precision manufacturing. As trailblazers in innovation, we lead the design and production of cutting-edge intelligent automation equipment. Our advanced solutions seamlessly meet the demands of a broad spectrum of industries, addressing a diverse array of applications and requirements, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and innovative solutions for state-of-the-art medical devices, we ensure strict adherence to the industry's most rigorous quality standards, consistently pushing the boundaries of innovation.
- Semiconductors: Ushering in a new era in chip manufacturing and machinery with the provision of vital core components, we play a pivotal role in driving the swift progress of the semiconductor industry.
- New Energy: Actively participating in the dynamic and sustainable evolution of next-generation energy equipment, we lead the charge in eco-friendly technological advancements, advocating for a greener future.
- Automotive: Providing essential components that fuel innovation within the automotive industry, we propel the evolution of smart and electric vehicles with unmatched precision and unwavering reliability.
Main Products
- We take immense pride in crafting bespoke non-standard components that extensively serve the medical, automation, semiconductor, and automotive sectors. Every piece we produce exemplifies our commitment to unparalleled precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations shine as a beacon of ingenuity and progress, proudly showcasing an exquisite selection of over 300 state-of-the-art machines. Each piece of equipment stands as a testament to superior engineering and precision, embodying the pinnacle of technological advancement. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur cutting-edge machinery empowers us to expertly tackle a vast array of equipment categories. This unmatched capability allows us to deftly meet the complex machining demands across multiple industries, delivering precision and efficiency that stand second to none. We are redefining excellence by setting new performance benchmarks, revolutionizing the industry standards with our unwavering reliability.
- With a distinguished legacy spanning two decades, we leverage our extensive production experience and significant technical and process expertise. This potent combination ensures superior quality and innovative foresight, marking us as true trailblazers in precision engineering. We consistently provide premium solutions to cater to the sophisticated needs of our clients, solidifying our position as leaders in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Examination of Incoming Materials: Assuring Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., the cornerstone of our outstanding quality is the thorough inspection and systematic examination of every raw material that arrives at our esteemed facility. Our committed team performs a comprehensive analysis, meticulously assessing both chemical and physical properties, ensuring top-grade materials indispensable for our CNC machining parts. We mandate suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity, underscoring our relentless dedication to quality. Only materials exhibiting the highest purity and integrity are accepted, crucial for our high-precision medical machining services. Our stringent verification process acts as a vigilant sentinel, consistently upholding superior quality standards at every juncture and reinforcing our promise to deliver products that embody refined precision and unparalleled excellence.
In-Process Quality Assurance: Mastering Precision at Every Stage
Within the seamless execution of our precision machining operations, each component undergoes diligent scrutiny to ensure that dimensions and tolerances not only meet but surpass our exceptional standards. Our ongoing inspection procedures function like a harmonized symphony, adeptly identifying discrepancies at the earliest possible stage to avert the progression of non-conforming parts. This proactive diligence is crucial in reducing the risk of substandard products, safeguarding remarkable quality throughout every phase of production, and ensuring our benchmark of excellence is consistently upheld from inception to completion.
Strategic First Article Inspection (FAI): Anticipating Perfection with Precision
Our First Article Inspection (FAI) serves as a vital strategic foundation, endowed with the foresight to identify and proactively address potential production challenges from the outset. This anticipatory approach acts as a trustworthy guardian, preventing issues from escalating into widespread production mishaps. The meticulous precision of our FAI process is essential in minimizing quality risks, ensuring our products consistently reach the pinnacle of excellence. This unwavering dedication to perfection is intricately woven into every phase of the production journey, ensuring our standards consistently surpass the zenith of quality.
Comprehensive Final Inspection: Reaching the Summit of Perfection
Before any product leaves our facility, it undergoes a final inspection process characterized by unmatched meticulousness and rigor. This detailed evaluation scrutinizes dimensions, visual aesthetics, performance, and any specialized customer requirements with exceptional precision. Our comprehensive inspection stands as a testament to our relentless pursuit of quality, guaranteeing that every product departing our facility is a shining example of our stringent standards. Our unwavering commitment to delivering only the highest quality products to our valued customers reinforces our reputation for unsurpassed excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerges as a beacon of precision and excellence in the specialized realm of high-precision component machining. Building upon an illustrious legacy that took root in 2002, our relentless commitment to transformative innovation catapults us to the pinnacle of technical research and development. Over the course of more than two decades, we have cemented our status as pioneers and visionaries, continuously redefining new frontiers in the expansive landscape of precision engineering. We possess unmatched technical expertise, which has earned us a stellar reputation that distinguishes us as industry leaders. Our exceptional mastery in precision medical machining services empowers us to consistently achieve ultra-tight tolerances and impeccably flawless surface finishes. This makes us the premier choice for the medical sector, reinforcing our esteemed status and elevating our brand to new heights.
With four strategically located production bases in the dynamic and vibrant cities of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled professionals, Donghui proudly boasts a robust, vertically integrated industry chain. This seamless integration of research and development, production, and delivery ensures that we not only meet but exceed the diverse and complex needs of our clients with unparalleled efficiency and superior quality. Our state-of-the-art facilities are exceptionally equipped to tackle the most intricate and demanding machining tasks, upholding our esteemed reputation for excellence and pioneering leadership in the 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)