Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fueled by an unyielding dedication that goes beyond mere obligation. Our journey is a harmonious blend of passion and expert craftsmanship in the sophisticated artistry and scientific precision of high-end manufacturing. Here, we do not merely follow trends; we set them, elevating industry standards to new heights. Our unparalleled expertise stands as a beacon in the realm of high-end component manufacturing, illuminating the path to flawless precision and extraordinary excellence. With every endeavor, we redefine industry benchmarks, setting the stage for innovative advancements. As pioneers of innovation, we lead the charge in designing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate into a diverse array of industries, accommodating a wide range of applications and specific needs, such as:
- Medical and Biotech: Delivering meticulously engineered, high-precision components alongside innovative solutions for cutting-edge medical devices, ensuring strict adherence to the industry's most stringent quality standards.
- Semiconductors: Transforming the landscape of chip manufacturing with our crucial core components, essential for the accelerated growth of the semiconductor industry.
- New Energy: Actively participating in the dynamic and sustainable progression of next-generation energy equipment, leading the charge in eco-friendly technological innovations.
- Automotive: Providing essential components that fuel progress within the automotive industry, supporting the creation of smart and electric vehicles with unmatched precision and reliability.
Main Products
- We take great pride in crafting bespoke non-standard components, extensively serving the medical, automation, semiconductor, and automotive industries. With a focus on delivering unmatched precision and exceptional quality in every piece, our products embody our commitment to excellence.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations stand as a beacon of innovation, proudly displaying an extraordinary lineup of over 300 meticulously curated machines, each a masterpiece of engineering prowess. world-renowned precision machining tools, these machines empower us to expertly manage a wide spectrum of equipment categories. This capability allows us to adeptly meet the intricate machining requirements across various industries with unrivaled precision and efficiency. We are elevating performance and reliability standards, setting new benchmarks in the quest for excellence.
- With a storied legacy spanning two illustrious decades, we leverage our extensive production experience, combined with significant technical and process expertise. This ensures exceptional quality and forward-thinking innovation, setting us apart as true trailblazers in the field of precision engineering. We consistently deliver superior solutions that meet the sophisticated needs of our clients, underscoring our role as leaders in innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Material Evaluation: Purity and Integrity Guaranteed
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., the integrity of our operations begins with an uncompromising evaluation of every raw material entering our esteemed facility. Through a meticulous examination process, our vigilant team leaves no aspect unchecked, rigorously analyzing both chemical and physical properties. This ensures only the highest quality materials are selected for our precision CNC machining parts. We demand a Certificate of Origin and a stamped Declaration of Conformity from suppliers, which serve as a testament to our unwavering commitment to quality excellence. We accept only materials that epitomize purity and integrity, essential for our high-precision medical machining services. Our stringent verification process stands as a vigilant guardian, diligently upholding exceptional quality standards at every turn, reinforcing our pledge to deliver products of unmatched refinement and precision.
In-Process Quality Assurance: Precision Perfected at Every Stage
Within the choreographed dance of our precise machining operations, each component undergoes intense scrutiny, ensuring dimensions and tolerances not only meet but exceed our elevated benchmarks. Our continuous inspection protocol operates like a masterfully orchestrated symphony, adeptly identifying discrepancies at their earliest, forestalling the propagation of non-conforming parts. This vigilant approach is vital for minimizing the risk of substandard products, safeguarding supreme quality at every production phase, and ensuring our standard of excellence remains unwavering across every process stage.
Strategic First Article Inspection (FAI): Ensuring Flawlessness from Inception
Our First Article Inspection (FAI) serves as a cornerstone of precision, equipped with the insight to foresee and mitigate potential production issues from the start. This proactive measure acts as a steadfast guardian, preventing complications from escalating into large-scale production challenges. The exhaustive accuracy of our FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the pinnacle of excellence. This steadfast commitment to perfection is intricately woven into every phase of our production journey, guaranteeing our standards consistently transcend the highest quality echelons.
Comprehensive Final Inspection: The Pinnacle of Perfection Embodied
Before any product leaves our facility, it undergoes an unparalleled final inspection characterized by meticulous precision and rigorous standards. This meticulous evaluation assesses dimensions, visual allure, performance, and adheres to any specific customer requirements with extraordinary exactitude. Our comprehensive inspection is not merely a testament but a manifestation of our relentless pursuit of quality, ensuring every product exiting our facility is a beacon of our exacting standards. Our dedication to delivering only the highest quality products to our esteemed clientele strengthens our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, tracing its illustrious origins back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a luminary in the world of high-precision component machining. For more than two decades, driven by an unwavering commitment to revolutionary innovation, we have delved into technical research, securing our status as pioneers and visionary leaders within the precision engineering domain. We possess an extraordinary depth of technical expertise, which catapults us to the pinnacle of market reputation, distinctly setting us apart as industry luminaries. Our unrivaled proficiency in precision medical machining services enables us to consistently achieve exceptionally precise tolerances and impeccably flawless surface finishes, thereby cementing our position as the premier choice in the medical industry.
With four strategically located production bases in the dynamic cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 exceptionally skilled professionals, Donghui has meticulously crafted a robust, vertically integrated industry chain that seamlessly blends research and development, production, and delivery. This ensures we consistently fulfill and surpass the multifaceted needs of our clients with unmatched efficiency and superior quality. Our cutting-edge facilities are perfectly equipped to tackle the most intricate and challenging machining tasks, upholding our esteemed reputation for excellence and innovative leadership.
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)