Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we proudly uphold the highest standards of excellence. Our unwavering dedication to both the art and science of precision manufacturing ensures we deliver nothing short of perfection. Our commitment to quality craftsmanship and technological prowess sets us apart, ensuring unmatched results in every component we create. Our unparalleled expertise leads the way in the realm of precision engineering. We navigate the prestigious field of superior component manufacturing with remarkable skill and refined finesse, ensuring excellence at every turn. As pioneers of innovation, we set the benchmark in designing and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions are seamlessly integrated across a broad spectrum of industries, satisfying diverse demands in numerous applications such as:
- Medical and Biotech: Providing impeccably engineered, ultra-high-precision components alongside revolutionary solutions, tailored for the forefront of advanced medical technologies.
- Semiconductors: Elevating chip fabrication and associated equipment with indispensable, critical components that drive unparalleled progress and enhanced efficiency.
- New Energy: Playing an essential role in accelerating the innovative and sustainable development of next-generation energy equipment, shaping the future of energy solutions.
- Automotive: Delivering essential components that spearhead innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components exemplify the pinnacle of excellence. Serving key 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 driven by an outstanding assembly of over 300 of the industry's most advanced and sophisticated machinery. This extensive and diverse range of equipment ensures we consistently stay at the forefront of innovation and adaptability. By continuously delivering groundbreaking solutions, we are setting a benchmark for industry excellence, leading the charge in precision and quality. These Top-Tier Branded machinery units are the pillars of our precision-oriented manufacturing process, forming the backbone that supports our meticulous production standards. They are essential in maintaining the high level of accuracy and quality we are known for. Equipped with our high-caliber machines, we expertly handle complex and challenging machining requirements across a broad spectrum of industries with unmatched precision and efficiency. Our extensive capabilities ensure strict compliance with the highest quality standards while offering personalized customization that is meticulously crafted to meet and exceed the distinctive demands of our valued clients, surpassing even their highest expectations.
- Boasting a prestigious 20-year legacy, we draw from a rich reservoir of manufacturing experience, seamlessly integrated with extensive technical expertise and process mastery. This harmonious blend assures not only superior quality but also pioneering innovation, empowering us to consistently deliver outstanding products that not only exceed expectations but also set new benchmarks of excellence in 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: As pioneers in surpassing industry norms, we employ unmatched precision techniques, setting an unparalleled gold standard in quality.
Every raw material that graces our cutting-edge warehouse is subjected to a stringent evaluation process, a transformative benchmark in industry quality assurance. Our comprehensive approach involves thorough chemical composition analysis and meticulous physical property assessment. Our steadfast dedication to excellence obliges suppliers to provide a Certificate of Origin and a verified Declaration of Conformity, ensuring that only superior materials contribute to our refined medical machining services. This rigorous validation process safeguards the integrity and purity of materials, perfectly aligning with our unwavering commitment to superior quality.
Unyielding In-Process Quality Control: Our unwavering vigilance and meticulous attention to detail fuel our relentless pursuit of perfection.
Throughout the intricate machining process, every component undergoes scrupulous scrutiny, ensuring dimensions and tolerances precisely align with our exacting specifications. This continuous inspection protocol is crucial for preemptively identifying and intercepting potential defects, averting the progression of any subpar parts. Through this diligent strategy, we significantly reduce the risk of producing inferior goods, consistently sustaining exceptional quality at every production phase.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework forms the bedrock of flawless excellence and unrivaled precision.
Our First Article Inspection (FAI) process is the bedrock of our quality strategy, expertly identifying and mitigating potential production challenges from the outset. This proactive approach ensures issues are contained before escalating into mass production obstacles. This all-encompassing FAI process is pivotal in minimizing quality risks, guaranteeing our products consistently attain the pinnacle of standards, epitomizing our steadfast commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate guardian of unparalleled quality and precision.
Before any product departs from our facility, it undergoes an exhaustive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection exemplifies our unwavering commitment to quality, ensuring that every part delivered fulfills our stringent standards, thereby providing our esteemed customers with products of unsurpassed quality.
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)