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. Possessing unmatched expertise in precision engineering, Shenzhen Donghui stands as a beacon of excellence, setting the gold standard for component quality. Our remarkable agility and sophisticated finesse ensure that unparalleled quality permeates every facet of our operations, solidifying our esteemed position as both pioneers and leaders in the industry. As trailblazers of innovation, we are redefining industry benchmarks with our revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into a multitude of industries, masterfully addressing unique challenges across a diverse array of applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions are at the forefront of advanced medical technologies, setting unprecedented standards of excellence in the industry.
- SemiconductorsBy supplying critical and essential components, we propel advancements in chip fabrication and related equipment, significantly enhancing efficiency and spurring innovation within 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 sustainable energy solutions.
- AutomotiveBy providing indispensable components, we spearhead innovation in the automotive sector, advancing the development of intelligent and electric vehicles and shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence, serving pivotal sectors such as medical, automation, semiconductor, and automotive industries. We consistently deliver unparalleled precision and superior quality that withstands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are energized by a remarkable fleet of over 300 of the industry's most sophisticated and advanced machinery units. This vast, cutting-edge assembly propels us to the pinnacle of innovation, securing our leading position in adaptability and precision. By persistently delivering groundbreaking solutions, we establish the industry benchmark for excellence, consistently aspiring for unmatched precision and exceptional quality. These Top-Tier Branded Our trailblazing machinery units form the bedrock of our precision-focused manufacturing operations, crafting the essential framework that sustains our unwavering production standards. Equipped with these state-of-the-art tools, we continually refine and elevate our manufacturing processes, achieving consistently superior results that set us apart in the industry. With our top-tier machines, we effortlessly execute intricate and demanding machining tasks across a wide array of industries, achieving matchless precision and efficiency. Our vast capabilities ensure steadfast adherence to the most stringent quality standards while offering tailored customization that not only meets but consistently exceeds the unique expectations of our esteemed clients, surpassing even their highest aspirations.
- Celebrating a distinguished 20-year legacy, we draw from a rich reservoir of manufacturing expertise intricately interwoven with profound technical knowledge and process mastery. This flawless synergy ensures not only superior quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that transcend expectations and redefine industry standards 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 Incoming Material Inspection: In today's fast-evolving world, where precision engineering reigns supreme, we exceed industry norms with groundbreaking practices. We proudly establish premier quality milestones, setting transformative standards that resonate throughout our entire production process. This deep-rooted commitment to excellence is reflected in every action we take, guaranteeing our materials match the sophistication of our methods.
Stellar Material Quality Assurance: As our cutting-edge warehouse welcomes raw materials, they undergo a thorough evaluation, setting superior quality assurance benchmarks. Our comprehensive approach integrates meticulous chemical analysis and rigorous examinations of physical properties. We rigorously require suppliers to present a Certificate of Origin along with a verified Declaration of Conformity, confirming only top-tier materials are utilized in our state-of-the-art medical machining services. This rigorous validation process reinforces material integrity, seamlessly aligning with our steadfast devotion to unmatched quality.
Infallible In-Process Quality Control: With unwavering attention to every detail and relentless vigilance, our pursuit of perfection is unwavering. This meticulous process ensures our standard of excellence is not only achieved but often exceeded at every stage of production.
Comprehensive Component Inspection: Throughout our intricate machining process, each component undergoes intense scrutiny to ensure dimensions and tolerances meet our exacting specifications. This proactive inspection protocol is vital in identifying and intercepting potential defects, effectively preventing non-conforming parts from progressing. This diligent approach dramatically reduces the risk of producing substandard goods, consistently maintaining outstanding quality at every production phase.
Anticipatory First Article Inspection (FAI): Our preventative framework forms the foundation of flawless excellence, showcasing unmatched precision and thoroughness.
First Article Inspection (FAI) Excellence: The FAI process is a cornerstone of our quality strategy, expertly detecting and addressing potential production challenges from the very start. This proactive methodology ensures issues are managed before escalating into production obstacles. Our comprehensive FAI process is essential in minimizing quality risks, ensuring our products consistently achieve the pinnacle of standards, reflecting our unwavering dedication to excellence across the entire production spectrum.
Detailed Final Inspection: The ultimate safeguard of exceptional quality and precision, ensuring perfection in every delivery.
Meticulous Final Inspection: Before any product departs our facility, it undergoes a detailed and thorough final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This exhaustive inspection reaffirms our unwavering commitment to quality, ensuring every delivered part meets our stringent standards, providing our valued customers with products of the highest excellence.
Packaging & Shipping
Company Profile
In the illustrious year of 2009, yet with roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon of excellence in the sophisticated arena of high-precision component machining. Our distinguished journey is driven by an unyielding passion for the intricate art and meticulous science of engineering, spanning an impressive two decades of relentless innovation and extraordinary precision. We have carved an indelible mark as frontrunners in precision engineering, ceaselessly advancing technical research and establishing groundbreaking standards in the industry, consistently exceeding expectations with innovation and unparalleled quality. We have meticulously cultivated an exceptional level of technical expertise, positioning ourselves as market leaders with a revered reputation for unmatched excellence. Our prowess in precision medical machining services is unrivaled, consistently achieving the most stringent tolerances and delivering pristine surface finishes. This unwavering dedication confirms our status as the preferred choice within the medical sector. Our precision and steadfast reliability have earned us enduring trust and respect, making us the preeminent name for outstanding machining solutions.
With four strategically located production facilities, situated in the dynamic and bustling locales of Shenzhen and Guiyang, bolstered by a formidable team of over 400 highly skilled specialists, Donghui has masterfully crafted a comprehensive, vertically integrated industry chain. This seamless chain connects pioneering research and development, superior production, and flawless delivery. Our operations ensure we consistently meet and exceed the diverse needs of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are expertly designed to handle the most intricate and challenging machining tasks, reinforcing our esteemed reputation for excellence and trailblazing 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)