Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our mission is to embody the essence of precision manufacturing. We blend traditional craftsmanship with the forefront of innovation to reach the summit of excellence. With an unshakable commitment to quality, every piece we create is a testament to flawless precision and artistry. Our dedication to employing avant-garde technology positions us as trailblazers, consistently delivering components that epitomize precision and excellence in every detail. Our unmatched proficiency in precision engineering not only sets the standard but elevates it, marking us as the epitome of component manufacturing excellence. Our expertise manifests through remarkable flexibility and meticulous craftsmanship, ensuring that every piece resonates with outstanding quality, reinforcing our standing as frontrunners in the industry. As avant-garde pioneers, we establish the ultimate benchmark in creating and deploying cutting-edge intelligent automation equipment. Our advanced solutions seamlessly integrate across a spectrum of industries, adeptly tackling the distinctive challenges of myriad applications, including:
- Medical and BiotechOur precision-engineered, ultra-high-precision components and revolutionary solutions propel the frontiers of advanced medical technologies, setting new heights in the industry.
- SemiconductorsWe significantly augment chip production and associated equipment with critical components, fostering groundbreaking progress and heightened efficiency in the semiconductor domain.
- New EnergyOur contributions are pivotal in propelling the innovative and sustainable evolution of next-gen energy equipment, thereby sculpting the future of energy solutions.
- AutomotiveWe provide crucial components that fuel innovation in the automotive sector, advancing the development of intelligent and electric vehicles and paving the way for future mobility.
Main Products
- Our precisely crafted non-standard customized components epitomize the pinnacle of quality and precision. Catering to key industries such as medical, automation, semiconductor, and automotive sectors, we ensure enduring excellence and superior craftsmanship 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 an awe-inspiring fleet of over 300 of the industry's leading-edge machinery units. This vast and state-of-the-art collection ensures we remain at the pinnacle of innovation and adaptability. By consistently delivering groundbreaking solutions, we set the industry standard for excellence, perpetually driving toward unmatched precision and superior quality. These Top-Tier Branded Our trailblazing machinery units are the cornerstone of our precision-driven manufacturing process, forming the essential infrastructure that upholds our uncompromising production standards. By leveraging these cutting-edge tools, we continuously refine and elevate our manufacturing methodologies to consistently achieve extraordinary outcomes. By utilizing our high-caliber machines, we expertly execute complex and challenging machining requirements across a multitude of industries, achieving an unparalleled level of precision and efficiency. Our extensive capabilities ensure unwavering adherence to the highest quality standards while providing bespoke customization that not only meets but exceeds the individual needs of our valued clients, greatly surpassing their highest expectations.
- With a prestigious 20-year legacy, we draw from a rich reservoir of manufacturing experience seamlessly combined 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 set 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 realm of innovation and precision, we not only meet the industry's towering expectations but proudly transcend them with our unparalleled methodologies. Our pioneering approach establishes superior quality benchmarks, setting new revolutionary standards that resonate through every phase of our production journey, ensuring excellence at every turn.
Every raw material entering our cutting-edge warehouse undergoes an exhaustive evaluation, elevating the standards of quality assurance to new heights. Our comprehensive approach encompasses a thorough analysis of chemical composition and rigorous assessments of physical properties. Suppliers must provide both a Certificate of Origin and a verified Declaration of Conformity, guaranteeing only the finest materials are selected for our state-of-the-art medical machining services. This meticulous validation process reinforces the integrity and purity of materials, perfectly aligning with our unwavering commitment to delivering superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering eye for detail, we pursue perfection with steadfast dedication and commitment to excellence.
Throughout the intricate machining process, every component is scrutinized with meticulous precision to ensure dimensions and tolerances align perfectly with our rigorous specifications. This ongoing inspection protocol is critical for proactively identifying and intercepting potential defects, effectively preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly mitigate the risk of producing substandard goods, consistently upholding exceptional quality at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the pillar of immaculate excellence, embodying unmatched precision.
The First Article Inspection (FAI) process is integral to our quality strategy, expertly identifying and resolving potential production challenges from the onset. This forward-thinking approach ensures issues are addressed before they become impediments in mass production. Our thorough FAI process is essential in minimizing quality risks, ensuring our products consistently attain the highest standards, and exemplifying 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 nothing but the best reaches our customers.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection underscores our unwavering dedication to quality, ensuring every delivered part meets our exacting standards, and providing our esteemed customers with products of the highest caliber.
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 At Shenzhen Donghui, 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)