Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unwavering commitment to excellence. Our passion intricately intertwines with profound expertise in the sophisticated art and meticulous science of precision manufacturing. Far from mere participants, we stand as distinguished leaders, perpetually advancing industry standards to extraordinary new heights. Our matchless expertise illuminates the path in high-end component manufacturing, providing a canvas for exquisite precision and exceptional excellence. With each stride, we redefine industry benchmarks, ceaselessly elevating the standards and reshaping the landscape of precision manufacturing. As trailblazers of innovation, we lead the design and production of revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly serve a broad spectrum of industries, addressing a wide variety of applications and needs, such as:
- Medical and Biotech: By delivering intricately engineered, high-precision components and revolutionary solutions for state-of-the-art medical devices, we ensure rigorous adherence to the industry's most stringent quality standards, consistently extending the frontiers of innovation.
- Semiconductors: Leading the vanguard in chip manufacturing and machinery, we supply crucial core components that are pivotal to the semiconductor industry's rapid advancement.
- New Energy: Engaged actively in the vibrant and sustainable evolution of next-generation energy equipment, we spearhead eco-friendly technological advancements, advocating ardently for a greener future.
- Automotive: Supplying indispensable components that accelerate innovation within the automotive sector, we propel the evolution of smart and electric vehicles with unmatched precision and steadfast reliability.
Main Products
- We take enormous pride in crafting tailored non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors. Each piece we produce embodies our dedication to unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations are a shining example of industrial ingenuity and forward-thinking. With a meticulously curated collection of over 300 state-of-the-art machines, each one stands as a monument to supreme engineering mastery and unparalleled precision. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur cutting-edge machinery empowers us to expertly address an expansive array of equipment categories. This unparalleled capability allows us to adeptly meet the intricate machining demands across a multitude of industries, delivering precision and efficiency that remain unmatched. We are redefining excellence by establishing new performance benchmarks, revolutionizing the industry standards with our reliability.
- With a celebrated legacy spanning over two decades, we harness a wealth of production expertise and profound technical acumen. This synergy of experience guarantees superior quality and visionary innovation, positioning us as pioneers in the realm of precision engineering. We continually deliver exceptional solutions that perfectly align with the sophisticated needs of our clients, reinforcing our status as leaders in cutting-edge innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unparalleled Examination of Incoming Materials: Ensuring Unrivaled Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd, our dedication to unparalleled quality begins with an exacting and thorough scrutiny of every raw material that enters our esteemed establishment. Each material undergoes a comprehensive analysis by our devoted team, meticulously assessing both chemical and physical properties to ensure only the highest-quality materials are utilized in our CNC machining parts. We require a Certificate of Origin and a stamped Declaration of Conformity from our suppliers, underscoring our unwavering commitment to excellence. Only materials exemplifying perfect purity and integrity are accepted, which is critical for our high-precision medical machining services. Our rigorous verification process acts as a vigilant guardian, ensuring superior quality standards at each stage and reinforcing our commitment to deliver products that epitomize exquisite precision and unparalleled excellence.
In-Process Quality Assurance: Elevating Precision at Every Step
During the seamless execution of our precision machining operations, every component is subject to detailed scrutiny to ensure that dimensions and tolerances not only meet but transcend our high standards. Our ongoing inspection procedures run like a finely tuned orchestra, expertly identifying any discrepancies at the earliest opportunity to prevent non-conforming parts from progressing. This proactive vigilance is essential in minimizing the risk of inferior products, safeguarding exceptional quality throughout every production phase, and ensuring our standard of excellence is consistently maintained from start to finish.
Strategic First Article Inspection (FAI): Anticipating Perfection with Precision Mastery
Our First Article Inspection (FAI) stands as a crucial strategic foundation, equipped with the insight to identify and proactively mitigate potential production challenges at the very outset. This preemptive strategy acts as a reliable protector, preventing issues from escalating into extensive production complications. The meticulous precision of our FAI process is instrumental in reducing quality risks, ensuring our products consistently achieve the utmost level of excellence. This relentless pursuit of perfection is intricately embedded into every phase of the production process, ensuring our standards consistently surpass the apex of quality.
Comprehensive Final Inspection: Achieving the Pinnacle of Perfection
Before any product exits our facility, it undergoes an exhaustive final inspection process marked by unparalleled meticulousness and stringency. This thorough evaluation scrutinizes dimensions, visual aesthetics, performance, and any specialized customer requirements with exceptional accuracy. Our expansive inspection process serves as a testament to our relentless pursuit of quality, ensuring that every product leaving our facility exemplifies our rigorous standards. Our steadfast commitment to exclusively delivering the highest-quality products to our valued customers solidifies our reputation for unmatched excellence and unyielding reliability.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. epitomizes the pinnacle of precision and excellence in the realm of high-precision component machining. With roots tracing back to 2002, our steadfast commitment to transformative innovation propels us to the forefront of technical research. Over two remarkable decades, we have fortified our standing as pioneers and visionaries, continuously charting new horizons in the precision engineering landscape. We pride ourselves on possessing unmatched technical expertise, establishing a sterling reputation that distinguishes us as industry vanguards. Our outstanding proficiency in precision medical machining services empowers us to consistently achieve ultra-tight tolerances and impeccably flawless surface finishes. This makes us the preferred partner for the medical sector, further solidifying our esteemed status.
With four strategically located production bases in the dynamic cities of Shenzhen and Guiyang, supported by a devoted workforce of over 400 exceptionally skilled professionals, Donghui commands a robust, vertically integrated industry chain. This seamlessly amalgamates research and development, production, and delivery, ensuring that we not only satisfy but surpass the diverse demands of our clients with unparalleled efficiency and superior quality. Our state-of-the-art facilities are adept at handling the most intricate and demanding machining tasks, reinforcing 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)