Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are ardently committed to achieving the highest echelons of precision manufacturing. Here, timeless craftsmanship harmoniously merges with the frontier of innovation. Our relentless drive for excellence guarantees that every masterpiece we produce glows with impeccable perfection. With an unwavering focus on quality craftsmanship and cutting-edge technology, we single ourselves out as providers of extraordinary results with every intricately crafted component. Our unmatched proficiency in precision engineering sets a new standard for excellence in component manufacturing. We exhibit remarkable agility and refined finesse, ensuring exceptional quality throughout every aspect of our operations, solidifying our standing as industry frontrunners. Pioneers of innovation, we redefine the gold standard in the design and delivery of groundbreaking intelligent automation equipment. Our advanced solutions integrate seamlessly across a multitude of industries, expertly tackling the distinctive challenges of diverse applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions are crafted for the forefront of advanced medical technologies, setting unprecedented benchmarks in this dynamic field.
- SemiconductorsWe elevate chip fabrication and associated equipment by supplying essential, critical components-driving extraordinary advances and heightened efficiency in the semiconductor sector.
- New EnergyWe play a pivotal role in propelling the innovative and sustainable development of cutting-edge energy equipment, contributing significantly to the future landscape of energy solutions.
- AutomotiveWe deliver essential components that drive innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles, and shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving crucial sectors such as medical, automation, semiconductor, and automotive industries, we provide unmatched precision and superior quality that stand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by a formidable and awe-inspiring fleet comprising over 300 of the industry's most advanced machinery units. This impressive and modern collection ensures we remain leaders in innovation and adaptability. By consistently delivering groundbreaking solutions, we set the industry standard for excellence, driving toward unmatched precision with unwavering commitment and superior quality. These Top-Tier Branded Machines Our pioneering machinery units form the bedrock of our precision-focused manufacturing process, serving as the vital infrastructure that upholds our rigorous production standards. By harnessing these state-of-the-art tools, we continually refine and elevate our manufacturing methodologies, ensuring the consistent achievement of extraordinary results. Leveraging our premium machines, we expertly execute complex and challenging machining requirements across diverse industries, achieving an unparalleled level of precision and efficiency. Our expansive capabilities ensure strict adherence to the highest quality standards while providing bespoke customization that not only meets but exceeds the unique needs of our esteemed clients, greatly surpassing their highest expectations.
- With a prestigious legacy spanning 20 years, we draw from a rich reservoir of manufacturing experience, seamlessly blending it with profound technical expertise and process mastery. This harmonious synergy guarantees not just exceptional quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that surpass expectations and establish new benchmarks of excellence within the industry.
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 and vibrant realm of innovation and precision, we rise above and beyond the towering expectations of the industry. Our unmatched methodologies pave the way for us to not only meet but surpass these benchmarks. We are proud pioneers of superior quality standards, setting revolutionary and transformative benchmarks that reverberate throughout every phase of our meticulous production journey.
Every raw material entering our cutting-edge warehouse undergoes an exhaustive and meticulous evaluation, establishing unprecedented standards in quality assurance. Our comprehensive, multi-faceted approach includes detailed chemical composition analysis and exacting physical property assessments. We require all suppliers to provide a Certificate of Origin alongside a verified Declaration of Conformity, ensuring that only the finest materials are reserved for our state-of-the-art medical machining services. This meticulous validation process fortifies the materials' integrity and purity, aligning harmoniously with our steadfast commitment to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering focus on detail, we pursue perfection with steadfast dedication and commitment at every stage.
Throughout the intricate and precise machining process, each component is subject to meticulous scrutiny to ensure dimensions and tolerances precisely align with our stringent specifications. This ongoing and thorough inspection protocol is pivotal in proactively identifying and intercepting potential defects, effectively preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is maintained at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework stands at the heart of immaculate excellence, embodying unrivaled precision and foresight.
The First Article Inspection (FAI) process forms the cornerstone of our robust quality strategy, adeptly identifying and resolving potential production challenges from the outset. This anticipatory approach ensures that issues are addressed before they can escalate into mass production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently achieve 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 unparalleled precision.
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 unwavering dedication to quality, ensuring that every part we deliver meets our exacting standards, ultimately providing our esteemed customers with products of the highest caliber imaginable.
Packaging & Shipping
Company Profile
Established in the distinguished year of 2009, with roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of innovation in the sophisticated realm of high-precision component machining. Our illustrious journey, driven by an unwavering passion for the intricate art and rigorous science of engineering, spans over two decades of relentless innovation and masterful precision. We have deftly carved our place as trailblazers in precision engineering, continuously advancing the frontiers of technical research and setting groundbreaking benchmarks within the industry, consistently exceeding expectations in innovation and quality. We have meticulously nurtured an exceptional caliber of technical acumen, positioning ourselves as market vanguards with a sterling reputation for unparalleled excellence. Our unrivaled expertise in precision medical machining services consistently meets the most exacting tolerances, delivering flawless surface finishes that solidify our status as the preeminent choice in the medical sector. Our precision and steadfast reliability continue to earn unwavering trust and esteem, making us the go-to name for high-quality machining solutions.
With four strategically located production bases, nestled in the dynamic and bustling centers of Shenzhen and Guiyang, and backed by an impressive team of over 400 highly skilled professionals, Donghui has intricately developed a comprehensive, vertically integrated industry chain. This chain seamlessly links cutting-edge research and development, superior production, and impeccable delivery. Our operations ensure we consistently meet and surpass the diverse needs of our clients with extraordinary efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to undertake the most complex and demanding machining tasks, reinforcing our revered reputation for excellence and pioneering 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)