Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment to excellence propels us forward, merging passion with profound expertise in the intricate art and meticulous science of precision manufacturing. We stand not just as participants but as distinguished leaders, continuously elevating industry standards to unprecedented heights. Our unmatched expertise guides the path in the realm of high-end component manufacturing, establishing the foundation for impeccable precision and outstanding excellence. With every endeavor, we redefine industry benchmarks, consistently setting new standards and reshaping the landscape of precision manufacturing. As trailblazing innovators, we lead the charge in designing and producing revolutionary intelligent automation equipment. Our cutting-edge solutions cater effortlessly to a vast spectrum of industries, addressing a myriad of applications and needs, including:
- Medical and Biotech: We deliver meticulously engineered, high-precision components and innovative solutions for state-of-the-art medical devices, ensuring strict adherence to the industry's most exacting quality standards and continually pushing the boundaries of innovation.
- Semiconductors: Pioneering a new era in chip manufacturing and machinery with our provision of critical core components, we play a vital role in accelerating the semiconductor industry's rapid advancements.
- New Energy: Committed to the progressive and sustainable growth of next-generation energy equipment, we lead the charge in eco-friendly technological advancements, championing the cause of a greener future.
- Automotive: Supplying essential components that drive innovation within the automotive sector, we propel the evolution of smart and electric vehicles with unparalleled precision and steadfast reliability.
Main Products
- We take immense pride in crafting bespoke, 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 beacon of innovation and advancement. We proudly host an exquisite array of over 300 state-of-the-art machines, each a testament to unparalleled engineering and precision craftsmanship. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur cutting-edge machinery empowers us to expertly tackle a wide range of equipment categories with unmatched capability. This allows us to meet the intricate machining demands of multiple industries with both precision and efficiency. We are redefining excellence by setting new performance benchmarks, revolutionizing industry standards with our exceptional reliability and precise craftsmanship.
- With a distinguished legacy spanning two decades, we capitalize on extensive production experience and significant technical and process expertise. This powerful combination ensures superior quality and innovative foresight, positioning us as true pioneers in precision engineering. We consistently deliver premium solutions tailored to the sophisticated needs of our clients, securing our status 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 with Peerless Precision
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we lay the groundwork for unparalleled quality with our meticulous scrutiny and systematic examination of every raw material entering our esteemed facility. Our dedicated team conducts a thorough analysis, rigorously assessing the chemical and physical attributes to assure that only the highest-quality materials are chosen for our CNC machining parts. Suppliers are required to provide a Certificate of Origin and a stamped Declaration of Conformity, underscoring our steadfast commitment to quality. We accept only those materials that exemplify the utmost purity and integrity, vital for our high-precision medical machining services. This rigorous verification process serves as a vigilant guardian, diligently upholding superior quality standards at every juncture and reinforcing our pledge to deliver products that epitomize refined precision and unparalleled excellence.
In-Process Quality Assurance: Mastering Precision with Unwavering Vigilance
Amid the flawless orchestration of our precision machining operations, every component undergoes meticulous scrutiny to ensure that dimensions and tolerances not only meet but exceed our lofty standards. Our continuous inspection procedures function like a masterfully conducted symphony, expertly detecting discrepancies at the earliest stage to avert the progression of non-conforming parts. This proactive vigilance is indispensable in mitigating the risk of substandard products, safeguarding exceptional quality throughout every phase of production, thereby ensuring our standard of excellence is consistently upheld from inception to completion.
Strategic First Article Inspection (FAI): Anticipating Perfection with Unrivaled Precision
Our First Article Inspection (FAI) serves as a pivotal strategic cornerstone, endowed with the foresight to identify and preemptively address potential production challenges from the outset. This preemptive approach acts as a reliable guardian, forestalling issues from evolving into large-scale production challenges. The meticulous precision of our FAI process is instrumental in minimizing quality risks, ensuring our products consistently achieve the pinnacle of excellence. This unwavering dedication to perfection is intricately woven into every stage of the production journey, ensuring our standards consistently surpass the zenith of quality.
Comprehensive Final Inspection: Reaching the Summit of Perfection with Unsurpassed Rigor
Before any product leaves our facility, it is subjected to a final inspection process characterized by unmatched meticulousness and rigor. This thorough evaluation scrutinizes dimensions, visual aesthetics, performance, and any specific customer requirements with exceptional precision. Our comprehensive inspection stands as a testament to our relentless pursuit of quality, ensuring that every product departing our facility is a glowing example of our stringent standards. Our unwavering commitment to delivering only the highest quality products to our valued customers fortifies our reputation for unsurpassed excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of unparalleled precision and distinguished excellence in the realm of high-precision component machining. With roots tracing back to a legacy established in 2002, our relentless pursuit of transformative innovation continually propels us to the cutting edge of technical research. For more than two decades, we have cemented our role as trailblazers and visionaries, setting new benchmarks and redefining the horizons of the precision engineering world. We possess unmatched technical expertise, a testament to our stellar reputation that distinguishes us as frontrunners in the industry. Our exemplary proficiency in precision medical machining services allows us to consistently achieve ultra-tight tolerances with impeccably flawless surface finishes. This positions us as the unequivocal choice for the medical sector, further reinforcing our prestigious status and commitment to excellence.
With four strategically located production bases, nestled in the vibrant cities of Shenzhen and Guiyang, and supported by a dedicated workforce of over 400 highly skilled professionals, Donghui proudly showcases a robust, vertically integrated industry chain. This seamlessly unites research and development with production and delivery, ensuring that we consistently exceed the diverse needs of our clientele with unmatched efficiency and superior quality. Our state-of-the-art facilities are adept at handling the most intricate and demanding machining challenges, maintaining our esteemed reputation for excellence and pioneering 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)