Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are proud torchbearers of exceptional standards, fusing the artistry of precision with scientific innovation. Our relentless pursuit of excellence ensures we produce components that embody perfection. Our steadfast commitment to quality craftsmanship and cutting-edge technology distinguishes us as leaders in the field, guaranteeing unparalleled results in every piece we craft. Our unrivaled expertise commands the domain of precision engineering, leading with unmatched skill and sophistication. We masterfully operate within the esteemed sphere of superior component manufacturing, achieving excellence at every juncture. As vanguards of innovation, we establish the gold standard in crafting and delivering trailblazing intelligent automation equipment. Our cutting-edge solutions are expertly woven into a wide array of industries, meeting diverse needs across numerous applications including:
- Medical and Biotech: Offering meticulously crafted, ultra-high-precision components and pioneering solutions, designed for the cutting-edge of advanced medical technologies.
- Semiconductors: Pioneering advancements in chip fabrication and supporting equipment with crucial, indispensable components that drive exceptional progress and heightened efficiency.
- New Energy: Pivotal in propelling the innovative and sustainable development of next-gen energy equipment, shaping the future landscape of energy solutions.
- Automotive: Supplying key components that drive innovation within the automotive sector, advancing the development of intelligent and electric vehicles.
Main Products
- Our masterfully crafted non-standard customized components embody the zenith of excellence. Catering to vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that endure through time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are driven by an elite ensemble of over 300 of the industry's most advanced and technologically sophisticated machinery units. This extensive, diverse collection of cutting-edge equipment ensures that we remain at the forefront of innovation and adaptability. By consistently providing solutions that redefine industry standards, we lead the charge in precision and quality, setting unparalleled benchmarks of industrial excellence. These Top-Tier Branded These elite machinery units form the cornerstone of our precision-centric manufacturing process, serving as the backbone that supports our stringent production standards. Our high-caliber machines enable us to masterfully execute intricate and challenging machining tasks across a wide array of industries with unmatched precision and efficiency. Our expansive capabilities guarantee unwavering adherence to the highest quality standards while delivering tailor-made, customized solutions that are expertly crafted to not only meet but exceed the unique demands of our esteemed clients, surpassing their loftiest expectations.
- Boasting a prestigious 20-year legacy, we harness a rich reservoir of manufacturing expertise seamlessly integrated with deep technical knowledge and process mastery. This harmonious fusion ensures not only superior quality but also trailblazing innovation, empowering us to consistently deliver exceptional products that transcend expectations, establishing new standards of excellence across 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 exceeding industry benchmarks, we deploy unrivaled precision techniques, setting a gold standard.
Every raw material entering our state-of-the-art warehouse undergoes a stringent evaluation process, a transformative benchmark in industry quality assurance. Our comprehensive approach encompasses thorough chemical composition analysis and meticulous physical property assessment. Our dedication to excellence mandates suppliers furnish a Certificate of Origin and a verified Declaration of Conformity, ensuring that only the highest-quality materials are used in our sophisticated medical machining services. This rigorous validation process preserves the integrity and purity of materials, seamlessly aligning with our unwavering dedication to superior quality.
Unyielding In-Process Quality Control: Our unwavering vigilance and meticulous attention to detail drive our pursuit of perfection.
During the intricate machining journey, every component is subject to scrupulous scrutiny, ensuring dimensions and tolerances precisely match our stringent specifications. This continuous inspection protocol is paramount for proactively identifying and intercepting potential defects, preventing the progression of any non-conforming parts. Through this diligent strategy, we substantially mitigate the risk of producing subpar goods, ensuring exceptional quality is consistently sustained throughout each production phase.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework lays the cornerstone for impeccable excellence and unmatched precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This proactive methodology ensures issues are contained before escalating into mass production hurdles. This all-encompassing FAI process is pivotal in minimizing quality risks, ensuring our products consistently achieve the zenith of standards, embodying our firm commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate guardian of unrivaled quality and precision.
Before any product leaves our facility, it undergoes a comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This exhaustive inspection exemplifies our unwavering commitment to quality, ensuring that every part delivered meets our stringent standards, thereby providing our esteemed customers with the finest quality products.
Packaging & Shipping
Company Profile
Founded in the illustrious year of 2009, with origins stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a distinguished leader in the intricate realm of high-precision component machining. Our esteemed journey, driven by a profound passion for the art and science of engineering, spans over two decades of relentless innovation and exceptional precision. As pioneers in precision engineering, we expertly carve our niche by continuously pushing the boundaries of technical research and setting unprecedented industry standards. We boast an unparalleled level of technical expertise, distinguishing ourselves as market leaders with a revered reputation for outstanding excellence. Our unmatched proficiency in precision medical machining services consistently meets the most stringent tolerances, delivering flawless surface finishes. This solidifies our position as the premier choice in the medical sector, where our precision and reliability continue to earn unwavering trust and admiration.
With four strategically positioned production bases, in the vibrant and dynamic hubs of Shenzhen and Guiyang, backed by an inspiring team of over 400 dedicated and 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 integration ensures we meet and exceed the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our state-of-the-art 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)