Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we stand out with an unrivaled passion for excellence. Our precise craftsmanship is a testament to our profound command in precision manufacturing, matched only by our relentless dedication to impeccable quality. As esteemed leaders, we elevate industry standards, setting new benchmarks that inspire and lead others to follow. In the realm of sophisticated component manufacturing, our unmatched expertise takes center stage. With extraordinary precision, we consistently redefine norms and reshape the precision manufacturing landscape. Our unwavering commitment to pioneering innovation ensures we remain at the forefront of the industry. As forerunners in innovation, we excel in the design and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions cater to the multifaceted needs of various industries, addressing a wide spectrum of applications, including:
- Medical and Biotech: We provide meticulously engineered, high-precision components and advanced solutions for state-of-the-art medical devices. Committed to adhering strictly to the industry's pinnacle quality standards, we continuously push the boundaries of innovation within healthcare technology.
- Semiconductors: Ushering in a new era of chip manufacturing and specialized machinery, we supply indispensable core components that are pivotal in driving technological breakthroughs and accelerating advancements in the semiconductor industry.
- New Energy: Leading the sustainable evolution of next-generation energy equipment, we are at the forefront of eco-friendly technological advances. Our commitment to championing a greener future paves the way for a sustainable path forward.
- Automotive: By delivering essential components that ignite innovation in the automotive sector, we empower the development of intelligent and electric vehicles with exceptional precision and consistent reliability, propelling the future of transportation.
Main Products
- We take immense pride in crafting bespoke non-standard components that fulfill the demands of the medical, automation, semiconductor, and automotive industries. Each component epitomizes our steadfast dedication to peerless precision and superior quality, underscoring our position as industry pioneers.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations transcend mere machinery; they embody a seamless fusion of groundbreaking innovation and forward-thinking progress. With a fleet surpassing 300 state-of-the-art machines, each one is a testament to our dedication to precision and superior engineering. This extraordinary collection not only showcases our steadfast commitment to exceptional quality but also epitomizes the height of technical mastery. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur cutting-edge array of machinery elevates us to the apex of precision machining prowess. Encompassing a wide spectrum of equipment categories, we effortlessly conquer the most intricate machining challenges across a multitude of sectors. Our unparalleled precision and efficiency redefine industry norms, establishing new standards with our unwavering commitment to innovation and reliability.
- With a prestigious heritage spanning over two decades, we blend extensive production expertise with unmatched technical and process acumen. This formidable synergy guarantees superior quality and an advanced outlook, cementing our status as pioneers in precision engineering. We consistently deliver elite solutions meticulously crafted to meet our clients' sophisticated needs, reinforcing our leadership in transformative innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Peerless Incoming Material Inspection: Safeguarding Purity and Integrity from Inception
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication to superior quality forms the cornerstone of our enterprise. We subject every incoming material to a comprehensive and discerning evaluation within our cutting-edge facility. Our expert team conducts exhaustive analyses of both chemical and physical attributes to confirm that only premium-grade materials progress to our CNC machining processes. Suppliers are mandated to furnish a Certificate of Origin accompanied by a stamped Declaration of Conformity, reflecting our steadfast commitment to unparalleled quality assurance. Only materials exemplifying supreme purity and integrity are selected, crucial for our high-precision medical machining services. This stringent verification is a vigilant custodian, unswervingly upholding remarkable quality standards and solidifying our promise to deliver products of exquisite precision and unmatched excellence.
In-Process Quality Assurance: Elevating Precision with Every Detail
In our precision machining operations, each component undergoes meticulous examination to guarantee its dimensions and tolerances surpass our stringent standards. Our continuous inspection protocols operate in harmony, proficiently identifying potential discrepancies early to avert any progression of non-conforming parts. This proactive vigilance is indispensable in mitigating risks of substandard products, preserving extraordinary quality throughout the production cycle, and ensuring our standard of excellence is upheld from inception to completion.
Strategic First Article Inspection (FAI): Refining Precision from the Foundation
Our First Article Inspection (FAI) is integral to our strategic methodologies, endowed with a prescient ability to preemptively address production challenges at their inception. This foresight acts as a vigilant guardian, thwarting issues from escalating into substantial production quandaries. The meticulousness of our FAI process is critical in minimizing quality risks, ensuring our products consistently achieve the pinnacle of excellence. Our tireless pursuit of perfection is seamlessly integrated into every stage of our production journey, ensuring our standards unfailingly exceed the zenith of quality.
Comprehensive Final Inspection: Achieving the Apex of Perfection
Prior to any product's departure from our premises, it undergoes a final inspection of unparalleled meticulousness and thoroughness. This rigorous scrutiny assesses dimensions, visual appeal, performance, and any bespoke customer requirements with unmatched precision. Our exhaustive final inspection symbolizes our relentless quest for quality, ensuring each product departing our facility exemplifies our stringent standards. Our steadfast commitment to delivering only the finest quality products to our esteemed clientele reinforces our reputation for unmatched excellence and reliability.
Packaging & Shipping
Company Profile
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., a beacon of excellence and ingenuity in precision engineering, has been a guiding light in the industry since 2009. Our illustrious journey, which began in 2002, positions us as a distinguished leader in high-precision component machining. Our unwavering dedication to innovation propels us to the forefront of technical research, where we continually push the boundaries of engineering precision. For over two decades, we have embodied the essence of pioneering visionaries, setting groundbreaking standards and exploring new horizons in this ever-evolving domain. We possess unparalleled technical mastery that elevates us as the pinnacle of the industry and confirms our role as genuine leaders. Our extraordinary skill in precision medical machining services allows us to consistently achieve ultra-tight tolerances and impeccable surface finishes. This cements our status as the preferred partner for the medical industry, enhancing our prestigious reputation and solidifying our legacy of unmatched excellence.
With four strategically located production bases in the bustling cities of Shenzhen and Guiyang, supported by an exceptional team of over 400 highly skilled professionals, Donghui exemplifies a robust, vertically integrated industry chain that seamlessly combines research, development, production, and delivery. This integration ensures that we not only meet but exceed the diverse needs of our clients with unparalleled efficiency and superior quality. Our cutting-edge facilities are fully equipped to tackle the most intricate and challenging machining tasks, upholding our esteemed reputation for innovative leadership and excellence.
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)