Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we pride ourselves on maintaining the pinnacle of excellence, blending the artistry and science of precision manufacturing. Our steadfast dedication to quality craftsmanship and technological mastery ensures that each component we produce embodies perfection. This unwavering commitment differentiates us, delivering unmatched results time and again. Our unrivaled expertise dominates the field of precision engineering. We skillfully navigate the elite territory of superior component manufacturing, showcasing extraordinary skill and refined finesse that guarantee excellence at every juncture. As frontrunners in innovation, we redefine standards in crafting and delivering cutting-edge intelligent automation equipment. Our advanced solutions seamlessly permeate a wide array of industries, meeting diverse needs across numerous applications including:
- Medical and Biotech: Delivering meticulously engineered, ultra-high-precision components coupled with groundbreaking solutions, we cater to the vanguard of advanced medical technologies.
- Semiconductors: Enhancing chip fabrication and related equipment with essential, vital components, we drive exceptional progress and heightened efficiency in semiconductor applications.
- New Energy: Playing a crucial role in expediting the innovative and sustainable growth of next-generation energy equipment, we are at the forefront of shaping future energy solutions.
- Automotive: Supplying key components that lead innovation in the automotive sector, we advance the evolution of intelligent and electric vehicles, driving future mobility solutions.
Main Products
- Our meticulously designed non-standard customized components represent the zenith of excellence. Serving critical sectors such as medical, automation, semiconductor, and automotive industries, we deliver unrivaled precision and superior quality that endure the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are supercharged by an impressive arsenal of over 300 of the industry's most technologically advanced and sophisticated machinery units. This extensive and varied collection of state-of-the-art equipment empowers us to consistently dominate the cutting-edge of innovation and adaptability. By relentlessly delivering revolutionary solutions, we establish the benchmark for excellence, spearheading the quest for unmatched precision and extraordinary quality. These Top-Tier Branded Our cutting-edge machinery units are the cornerstone of our precision-driven manufacturing process, forming the vital framework that underpins our stringent production standards. With these advanced tools, we refine and elevate our manufacturing strategies to consistently achieve extraordinary results. Leveraging our high-caliber machines, we skillfully navigate complex and demanding machining requirements across a vast spectrum of industries, reaching an unparalleled level of precision and efficiency. Our extensive capabilities ensure steadfast adherence to the highest quality standards, while delivering tailor-made customization meticulously designed to not only meet but exceed the unique needs of our distinguished clients, far surpassing their highest expectations.
- With a prestigious 20-year legacy, we harness a deep reservoir of manufacturing experience seamlessly integrated with comprehensive technical knowledge and process expertise. This harmonious combination guarantees not only superior quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and redefine standards 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
Meticulous and Rigorous Incoming Material Inspection: Standing at the forefront of innovation, we elevate industry standards with our unmatched methodologies. We are setting authoritative quality benchmarks, forging new paths of excellence at every juncture.
In our state-of-the-art facility, each incoming raw material undergoes a rigorous evaluation process, establishing a new standard in quality assurance. Our exhaustive methodology encompasses thorough chemical composition analysis and precise physical property assessment. We mandate a Certificate of Origin and a verified Declaration of Conformity from our suppliers, ensuring only the highest caliber materials enter our advanced medical machining services. This meticulous validation process is essential in preserving material integrity and purity, harmonizing with our unwavering commitment to superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance and unparalleled attention to detail fuel our perfection-driven pursuit with unwavering focus.
Through every complex machining stage, each component is scrupulously examined to affirm that dimensions and tolerances strictly conform to our rigorous specifications. This ongoing inspection protocol is pivotal in the early detection and interception of potential defects, preventing the progression of non-conforming parts. By employing this diligent strategy, we substantially reduce the risk of producing inferior goods, ensuring that superior quality is consistently maintained throughout every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the bedrock of flawless excellence and unmatched precision.
Our First Article Inspection (FAI) process is integral to our quality strategy, expertly identifying and mitigating potential production issues from the outset. This proactive approach ensures that challenges are addressed before evolving into mass production obstacles. Our comprehensive FAI process plays a crucial role in minimizing quality risks, ensuring our products consistently achieve the highest standards and embody our unwavering dedication to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate bastion of unmatched quality and precision.
Before any product exits our facility, it is subjected to a thorough and comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual aesthetics, performance, and customer-specific requirements. This meticulous inspection process underscores our steadfast commitment to quality, ensuring every delivered part meets our exacting standards and provides our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with our origins reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a distinguished leader in the intricate world of high-precision component machining. Our esteemed journey, fueled by a deep-seated passion for the art and science of engineering, spans over two decades of relentless innovation and precision. We have expertly carved our niche as pioneers in precision engineering, consistently pushing the boundaries of technical research and setting unprecedented industry standards. We have cultivated an unparalleled level of technical expertise, setting ourselves apart as market leaders with an esteemed reputation for outstanding excellence. Our unmatched proficiency in precision medical machining services consistently adheres to the most stringent tolerances, delivering flawless surface finishes. This solidifies our position as the leading choice in the medical sector, where our precision and reliability continue to garner unwavering trust and admiration.
With four strategically positioned production bases, in the vibrant and thriving centers of Shenzhen and Guiyang, supported by an inspiring team of over 400 highly skilled employees, Donghui has meticulously developed a comprehensive, vertically integrated industry chain that seamlessly connects research and development, top-tier production, and flawless delivery. This ensures we meet and exceed the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to tackle the most complex and challenging machining tasks, reinforcing our prestigious reputation for excellence and groundbreaking 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)