Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to perfecting the craft of precision manufacturing. Where time-honored craftsmanship intersects with cutting-edge innovation, we herald a new era of unparalleled excellence. Our relentless quest for perfection ensures that every creation is a tribute to impeccable artistry. By harnessing the latest technologies and adhering to our unwavering standards of quality, we distinguish ourselves, delivering exceptional, intricately engineered components that represent the pinnacle of precision and artistry. Leveraging our unmatched expertise in precision engineering, we set the gold standard for component excellence. Our remarkable agility and sophisticated finesse ensure peerless quality across every facet of our operations, solidifying our position as pioneers and leaders in the industry. As trailblazers of innovation, we redefine benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into diverse industries, masterfully addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions lead the vanguard of advanced medical technologies, setting unprecedented standards of excellence in the field.
- SemiconductorsSupplying critical, essential components, we drive advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation in the semiconductor industry.
- New EnergyWe play a pivotal role in the innovative and sustainable evolution of next-generation energy equipment, crucially contributing to the future landscape of energy solutions.
- AutomotiveProviding indispensable components, we lead innovation in the automotive industry. Our contributions advance the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components are the epitome of excellence. Serving vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that stands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess In the realm of industrial innovation, our operations are propelled by an extraordinary fleet exceeding 300 of the industry's most sophisticated machinery units. This expansive and avant-garde assemblage affirms our dominant stance in both innovation and adaptability. By consistently delivering avant-garde solutions, we establish an industrial benchmark of unparalleled excellence, perpetually aiming for unprecedented precision and superior quality. These Top-Tier Branded At the forefront of our precision-oriented manufacturing process lie our revolutionary machinery units. Serving as the cornerstone of our production infrastructure, these cutting-edge tools are instrumental in maintaining our unwavering production standards. Our continuous refinement and enhancement of manufacturing methods, facilitated by these state-of-the-art tools, ensure that we consistently achieve outstanding results. With our high-caliber machines, we adeptly execute intricate and challenging machining tasks across a multitude of industries, achieving unmatched precision and efficiency. Our expansive capabilities ensure unwavering adherence to the highest quality standards, while offering customized solutions that not only meet but consistently exceed the unique requirements of our valued clients, surpassing even their highest expectations.
- Celebrating a venerable 20-year legacy, we draw upon a rich tapestry of manufacturing experience intricately woven with profound technical expertise and process mastery. This seamless synergy guarantees not only exceptional quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that surpass expectations and establish new industry benchmarks of excellence.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In a fast-paced world where innovation and precision are paramount, we do more than meet the industry's towering expectations; we redefine them with unmatched methodologies. We proudly establish the foundation for superior quality benchmarks, setting revolutionary standards that resonate throughout every stage of our production journey.
Every raw material that enters our state-of-the-art warehouse is subject to an exacting evaluation process, setting an industry benchmark in quality assurance. Our holistic approach includes meticulous chemical composition analysis and exhaustive physical property assessments. Suppliers are mandated to provide a Certificate of Origin along with a verified Declaration of Conformity, ensuring that only top-tier materials are incorporated into our pioneering medical machining services. This rigorous validation fortifies the integrity and purity of materials, perfectly aligning with our steadfast dedication to unparalleled quality.
Uncompromising In-Process Quality Control: With an unyielding commitment to detail and relentless vigilance, we pursue perfection with unwavering dedication. This meticulous process ensures that our standards of excellence are consistently met and often surpassed.
Throughout the intricate machining process, every component is meticulously scrutinized to ensure dimensions and tolerances align precisely with our stringent specifications. This proactive inspection protocol is crucial in pinpointing and intercepting potential defects, preventing any non-conforming parts from advancing. This diligent strategy significantly reduces the risk of substandard production, consistently maintaining exceptional quality at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the foundation of immaculate excellence, exemplifying unparalleled precision and thoroughness.
The First Article Inspection (FAI) process is the bedrock of our quality strategy, expertly pinpointing and resolving potential production challenges from the start. This forward-thinking approach ensures that issues are addressed before they escalate into significant production obstacles. Our comprehensive FAI process is vital in mitigating quality risks, ensuring our products consistently meet the highest standards, embodying our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of extraordinary quality and precision, ensuring the delivery of nothing short of perfection.
Before any product exits our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part meets our exacting standards, providing our esteemed customers with products of the utmost caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, although our origins trace back to the illustrious 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. was founded as a beacon in the refined domain of high-precision component machining. Our prestigious journey has been fueled by an unwavering zeal for the nuanced art and exacting science of engineering, spanning more than two decades of relentless innovation and exquisite precision. Throughout, we have etched our name indelibly as pioneers in the realm of precision engineering, perpetually advancing technical research while establishing groundbreaking standards in our industry. We continually surpass expectations with our unwavering commitment to innovation and exceptional quality. We have meticulously cultivated an extraordinary level of technical expertise, positioning ourselves as market leaders with a prestigious reputation for unmatched excellence. Our proficiency in precision medical machining services is unrivaled, consistently achieving the strictest tolerances while delivering impeccable surface finishes. This unwavering dedication affirms our position as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and regard, solidifying our status as the foremost name for superior machining solutions.
With four strategically positioned production facilities, in the vibrant and bustling hubs of Shenzhen and Guiyang, and supported by an impressive team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain seamlessly connects cutting-edge research and development, superior production, and impeccable delivery. Our operations guarantee that we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are expertly designed to handle the most intricate and demanding machining tasks, bolstering our esteemed reputation for excellence and groundbreaking innovation.
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)