Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately dedicated to the mastery of precision manufacturing. Where timeless craftsmanship converges with cutting-edge innovation, we usher in a new era of unparalleled excellence. Our relentless quest for perfection transforms each creation into a masterpiece of flawless artistry. Through our steadfast commitment to quality and state-of-the-art technology, we distinguish ourselves by delivering extraordinary, intricately crafted components that epitomize the pinnacle of precision. With unparalleled expertise in precision engineering, we redefine the gold standard for component excellence. Our exceptional agility and sophisticated finesse ensure unmatched quality across every facet of our operations, solidifying our reputation as trailblazers and leaders within the industry. As trailblazers of innovation, we elevate the standard in crafting and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a multitude of industries, adeptly addressing the unique challenges posed by diverse applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions stand at the forefront of advanced medical technologies, setting new standards of excellence and innovation within the field.
- SemiconductorsBy providing essential, critical components, we drive the progression of chip fabrication and related equipment, spearheading remarkable advancements and enhancing efficiency within the semiconductor industry.
- New EnergyWe are pivotal contributors to the innovative and sustainable evolution of next-generation energy equipment, playing a crucial role in shaping the future landscape of energy solutions.
- AutomotiveAs suppliers of vital components, we lead the charge in innovation within the automotive industry. Our contributions foster the development of intelligent and electric vehicles, molding the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize mastery and excellence. Serving critical sectors like medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality designed to endure the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are driven by a remarkable fleet of over 300 of the industry's most advanced machinery units. This extensive, cutting-edge collection guarantees our leadership in innovation and adaptability. By consistently providing groundbreaking solutions, we set the industry benchmark for excellence, always striving toward unprecedented precision and exemplary quality. These Top-Tier Branded Our pioneering machinery units are the bedrock of our precision-focused manufacturing process, forming the critical infrastructure that supports our unwavering production standards. Through these state-of-the-art tools, we continually refine and enhance our manufacturing methods to achieve outstanding results consistently. Fueled by our high-caliber machines, we masterfully execute complex machining tasks with unwavering precision and efficiency across a multitude of industries. Our expansive capabilities ensure absolute adherence to the highest quality standards, offering personalized solutions that not only fulfill but consistently surpass the unique requirements of our valued clients, greatly exceeding their most ambitious expectations.
- With a celebrated 20-year legacy, we draw upon a rich tapestry of manufacturing experience, deeply interwoven with technical expertise and process mastery. This seamless blend ensures not only exceptional quality but also cutting-edge innovation, empowering us to consistently deliver remarkable products that exceed 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 and Exacting Incoming Material Inspection: In the dynamic arena where innovation meets precision, we don't just fulfill the towering expectations of our industry; we transcend them with unparalleled methodologies. We proudly set the stage for superior quality benchmarks, establishing revolutionary standards that resonate throughout the entire spectrum of our production journey, making us leaders in the field.
Every raw material that graces our cutting-edge warehouse is subjected to an exhaustive evaluation, setting the gold standard in quality assurance. Our comprehensive approach encompasses detailed chemical composition analyses and rigorous physical property assessments. Suppliers must present a Certificate of Origin along with a verified Declaration of Conformity, ensuring the finest materials are reserved for our state-of-the-art medical machining services. This meticulous validation process fortifies the integrity and purity of materials, seamlessly aligning with our unwavering commitment to superior quality, ensuring the highest level of product excellence.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering eye for detail, we pursue perfection with steadfast dedication and commitment. This relentless process ensures that our standards of excellence are consistently met and frequently exceeded.
Throughout the intricate machining process, each component undergoes meticulous scrutiny to assure dimensions and tolerances align precisely with our stringent specifications. This ongoing inspection protocol is crucial for proactively identifying and intercepting potential defects, thus preventing any non-conforming parts from advancing further in the process. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is upheld at every phase of production, maintaining our reputation for excellence.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, embodying unrivaled precision and thoroughness, ensuring the highest levels of product integrity from the start.
The First Article Inspection (FAI) process forms the bedrock of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This anticipatory approach ensures issues are addressed before they escalate into mass production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, embodying our unwavering commitment to excellence across the entire production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring the delivery of perfection and impeccable standards.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection underscores our steadfast dedication to quality, ensuring every delivered part meets our exacting standards, thereby providing our esteemed customers with products of the utmost caliber and unwavering reliability.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, yet with roots deeply embedded since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of excellence in the elite sphere of high-precision component machining. With an unwavering dedication to the intricate art and rigorous science of engineering, our journey spans over two decades, marked by relentless innovation and extraordinary precision. We proudly stand as trailblazers in precision engineering, continuously pushing the boundaries of technical research and setting pioneering standards within the industry, consistently exceeding expectations in both innovative prowess and unmatched quality. We have masterfully honed an exceptional level of technical expertise, establishing ourselves as market leaders with a sterling reputation for incomparable excellence. Our mastery in precision medical machining services remains unrivaled, consistently meeting the most stringent tolerances and delivering flawless surface finishes. This unwavering dedication solidifies our standing as the preferred partner in the medical sector. Our precision and steadfast reliability have garnered us lasting trust and admiration, cementing our status as the premier choice for superior machining solutions.
With four strategically located production facilities, nestled in the dynamic and thriving cities of Shenzhen and Guiyang, and bolstered by an adept team of over 400 highly skilled specialists, Donghui has meticulously developed a fully integrated industry chain. This seamless chain links cutting-edge 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 unparalleled quality. Our state-of-the-art facilities are expertly designed to tackle the most intricate and demanding machining challenges, enhancing our esteemed reputation for excellence and innovative breakthroughs.
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)