Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fervently committed to achieving the zenith of precision manufacturing-where centuries-old craftsmanship harmonizes with avant-garde innovation. Our relentless pursuit of exceptional quality ensures that each masterpiece embodies impeccable perfection. By merging top-tier quality craftsmanship with state-of-the-art technology, we uniquely position ourselves to provide remarkable results, delivering intricately crafted components that exude excellence in every detail. Our unmatched proficiency in precision engineering establishes the standard for superior component manufacturing. With remarkable agility and refined finesse, we assure exceptional quality across every aspect of our work, cementing our status as industry frontrunners. Pioneers of innovation, we redefine the benchmark for crafting and delivering groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across diverse industries, skillfully tackling the distinctive challenges presented by a wide range of applications, including:
- Medical and BiotechOur meticulously designed, ultra-high-precision components and transformative solutions are engineered for the pinnacle of advanced medical technologies, setting new, unparalleled standards in the industry.
- SemiconductorsBy supplying essential, critical components, we enhance chip fabrication and related equipment, propelling extraordinary advancements and boosting efficiency within the semiconductor industry.
- New EnergyWe are pivotal in propelling the innovative and sustainable development of next-generation energy equipment, contributing significantly to the future landscape of energy solutions.
- AutomotiveWe provide indispensable components that drive innovation in the automotive sector, accelerating the evolution of intelligent and electric vehicles, and actively shaping the future of mobility.
Main Products
- Our expertly engineered non-standard custom components epitomize the pinnacle of excellence. Catering to critical sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality that withstand 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: Within the dynamic realm of innovation, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. not only fulfills the towering demands of the industry but surpasses them with unparalleled precision. We proudly set new benchmarks for superior quality, establishing groundbreaking standards that resonate throughout every stage of our production journey.
Every piece of raw material entering our cutting-edge facility undergoes a comprehensive evaluation, setting new benchmarks in quality assurance. Our meticulous approach includes detailed chemical composition analysis and rigorous physical property assessments. Suppliers are required to submit a Certificate of Origin along with a verified Declaration of Conformity, ensuring only the highest quality materials are selected for our state-of-the-art medical machining services. This stringent validation process bolsters the purity and integrity of materials, perfectly aligning with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering eye for detail, we pursue perfection with steadfast dedication and commitment, ensuring every machined component exemplifies precision and excellence.
Throughout the intricate machining process, each component is meticulously scrutinized to ensure dimensions and tolerances align precisely with our rigorous specifications. This ongoing inspection protocol is crucial for proactively identifying and intercepting potential defects, preventing non-conforming parts from advancing. Through this diligent strategy, we significantly mitigate the risk of producing substandard goods, consistently ensuring exceptional quality at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, epitomizing unmatched precision.
The First Article Inspection (FAI) process is the foundation of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This anticipatory approach prevents issues from evolving into larger production hurdles. Our thorough FAI process is crucial in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, embodying our unwavering commitment to excellence throughout the entire production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, safeguarding the excellence of every finished product.
Before any product leaves our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. Our thorough inspection process underscores our steadfast dedication to quality, ensuring each delivered part meets our stringent standards, providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Since its establishment in the distinguished year of 2009 and with roots extending back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of brilliance in the sophisticated realm of high-precision component machining. Our illustrious journey is driven by an unwavering passion for the intricate art and rigorous science of engineering, spanning 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, we exceed expectations in both innovation and quality, cementing our status as true pioneers. We have meticulously nurtured a remarkable standard of technical acumen, establishing 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. This mastery solidifies 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 placed production bases, strategically nestled in the vibrant hubs of Shenzhen and Guiyang, and supported 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, ensuring that 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)