Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our drive for excellence is unmatched. We passionately fuse our profound mastery in precision manufacturing with an unwavering commitment to quality. As distinguished leaders, we elevate industry standards and set new benchmarks for others to aspire to. Our unparalleled expertise shines brightly in the arena of high-end component manufacturing. We pave the way with remarkable precision, consistently setting new standards and reshaping the precision manufacturing landscape. Our commitment to innovation keeps us ahead in the industry. As trailblazers of innovation, we excel in designing and producing pioneering intelligent automation equipment. Our state-of-the-art solutions meet the diverse needs of numerous industries, addressing a broad array of applications, including:
- Medical and Biotech: Providing meticulously crafted, high-precision components and advanced solutions for cutting-edge medical devices, we adhere strictly to the industry's highest quality standards. We continually push the boundaries of innovation in healthcare technology.
- Semiconductors: We herald a new era in chip manufacturing and specialized machinery by supplying essential core components. We are instrumental in driving technological breakthroughs and rapid advancements in the semiconductor industry.
- New Energy: We are at the forefront of the sustainable evolution of next-generation energy equipment, leading eco-friendly technological advancements. We champion a greener future, ensuring a sustainable path forward.
- Automotive: Delivering pivotal components that spark innovation within the automotive sector, we empower the development of smart and electric vehicles with exceptional precision and unwavering reliability, driving the future of transportation.
Main Products
- We take great pride in crafting custom non-standard components that extensively serve the medical, automation, semiconductor, and automotive industries. Each piece exemplifies our unwavering dedication to unmatched precision and superior quality, solidifying our status as industry frontrunners.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations are not just about machinery; they represent a harmonious blend of innovation and progress. With an impeccable fleet of over 300 cutting-edge machines, each one stands as a beacon of precision and advanced engineering. This remarkable assembly speaks volumes about our commitment to excellence, embodying the zenith of technical prowess. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur arsenal of cutting-edge machinery places us at the pinnacle of precision machining capabilities. Spanning a diverse array of equipment categories, we effortlessly handle the most complex machining tasks across various sectors. Our impeccable precision and efficiency redefine industry standards, setting new benchmarks with our unwavering dedication to innovation and reliability.
- Boasting a prestigious history of two decades, we merge vast production expertise with unrivaled technical and process knowledge. This powerful combination ensures top-tier quality and a progressive approach, establishing us as frontrunners in precision engineering. We unfailingly craft elite solutions tailored to our clients' sophisticated demands, reinforcing our position as leaders in transformative innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Incoming Material Inspection: Ensuring Purity and Integrity at Its Core
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment to quality is the bedrock of our operations. Every material that enters our state-of-the-art facility undergoes a meticulous evaluation and rigorous inspection process. Our dedicated team conducts comprehensive analyses to assess both chemical and physical properties, ensuring that only the highest quality materials are used for our CNC machining parts. We require suppliers to provide a Certificate of Origin along with a stamped Declaration of Conformity, underscoring our unwavering commitment to quality assurance. Only materials with superior purity and integrity make the cut, critical for our high-precision medical machining services. This rigorous verification process acts as a stringent guardian, steadfastly upholding exceptional quality standards and reinforcing our dedication to delivering products of impeccable precision and unparalleled excellence.
In-Process Quality Assurance: Mastering Precision with Every Turn
Throughout our precision machining processes, every component is meticulously scrutinized to ensure dimensions and tolerances exceed our exceptional standards. Our ongoing inspection protocols work like a finely-tuned symphony, expertly identifying discrepancies early to prevent the progression of non-conforming parts. This proactive vigilance is pivotal in reducing the risk of inferior products, maintaining exceptional quality at every stage of production, and ensuring our standard of excellence remains steadfast from start to finish.
Strategic First Article Inspection (FAI): Perfecting Precision from the Ground Up
Our First Article Inspection (FAI) is a cornerstone of our strategic operations, equipped with the foresight to proactively address potential production challenges at the onset. This foresight serves as a reliable sentinel, preventing issues from growing into larger production dilemmas. The precision of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the pinnacle of excellence. Our relentless pursuit of perfection is intricately woven into every phase of our production journey, ensuring our standards consistently surpass the zenith of quality.
Comprehensive Final Inspection: Reaching the Pinnacle of Perfection
Before any product departs from our facility, it undergoes a final inspection process of unmatched meticulousness and thoroughness. This rigorous evaluation scrutinizes dimensions, visual aesthetics, performance, and any specialized customer requirements with unparalleled precision. Our exhaustive final inspection is a testament to our relentless pursuit of quality, ensuring every product leaving our facility is a shining example of our stringent standards. Our unwavering commitment to delivering only the highest quality products to our esteemed customers bolsters 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 illuminating the industry scene since 2009. Our illustrious journey dates back to 2002, highlighting our esteemed position as a distinguished leader in high-precision component machining. Our unwavering commitment to innovation drives us to the forefront of technical research, where we continuously redefine the limits of engineering precision. For more than twenty years, we have embodied the essence of pioneering visionaries, setting groundbreaking standards and exploring new horizons in this ever-evolving domain. We possess unmatched technical mastery, elevating us as the pinnacle of the industry and affirming our role as authentic leaders. Our extraordinary skill in precision medical machining services enables us to consistently achieve ultra-tight tolerances and flawless surface finishes. This cements our status as the go-to partner for the medical industry, enhancing our prestigious reputation and solidifying our legacy of unmatched excellence.
With four strategically located production bases in the vibrant cities of Shenzhen and Guiyang, bolstered by an exceptional team of over 400 highly adept professionals, Donghui embodies a strong, vertically integrated industry chain that seamlessly intertwines 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 state-of-the-art 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)