Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not just committed; our dedication is passionately intertwined with an unwavering enthusiasm for the artful craft and meticulous science of precision manufacturing, driving us to excel and innovate. Our unparalleled expertise is the beacon illuminating the world of high-end component fabrication, setting the standard for meticulous precision and guiding our clients towards exceptional quality. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our innovative solutions are designed to serve a plethora of industries, offering versatile applications, including:
- Medical and Biotech: We provide meticulously engineered high-precision components and forward-thinking solutions for cutting-edge medical devices, consistently upholding the highest quality standards.
- Semiconductors: We empower the semiconductor industry by delivering essential core components that are vital for the smooth production of chips and the success of their associated equipment.
- New Energy: We are actively engaged in the dynamic and sustainable advancement of innovative energy equipment, contributing to the eco-friendly technological progress of tomorrow.
- Automotive: We supply crucial components that drive innovation within the automotive industry, assisting in the evolution towards smarter and more efficient electric vehicles.
Main Products
- We excel in crafting non-standard customized components, catering extensively to the medical, automation, semiconductor, and automotive sectors, ensuring unmatched precision and superior product quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency. Our state-of-the-art machinery is a testament to our commitment to excellence, providing us with the versatility to serve a wide range of sectors seamlessly. We ensure that every piece of equipment is maintained to the highest standards, guaranteeing top-tier performance and precision.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering. Our journey is marked by a steadfast dedication to advancing technology and continually evolving our techniques, ensuring we remain at the forefront of the industry. Our legacy is built on the pillars of quality, innovation, and the relentless pursuit of perfection.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Pioneering Incoming Material Examination
Each raw material entering our warehouse undergoes a rigorous and exhaustive examination process, showcasing our commitment to excellence. Our meticulous analyses entail an in-depth assessment of the chemical composition and a comprehensive evaluation of physical properties. We are unwavering in our dedication to quality, insisting that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This stringent protocol ensures that only the highest-grade materials are chosen for our precision-driven medical machining services. Our rigorous authentication standard guarantees that these materials uphold the pinnacle of integrity and purity, harmonizing seamlessly with our enduring commitment to quality.
Comprehensive In-Process Quality Assurance
Within our intricate machining operations, every component is subjected to meticulous scrutiny, ensuring that its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent, continuous inspection protocol is strategically devised to catch potential defects early, preventing any non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial in minimizing the risk of substandard goods, securing superior quality at every production phase, and maintaining unparalleled excellence throughout our entire process.
Strategically Orchestrated First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy that plays a vital role in preemptively identifying and addressing potential production hurdles. This proactive approach effectively curtails issues before they can escalate to mass production. The exhaustive and precise nature of our FAI process is pivotal in mitigating quality risks, ensuring our products consistently reach the pinnacle of excellence. This unwavering dedication to superior standards is deeply embedded in every facet of the production cycle, guaranteeing that we meet and surpass the highest quality benchmarks.
Meticulous and Thorough Final Inspection
Before any product exits our facility, it is subjected to a meticulous and exhaustive final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection regimen epitomizes our relentless commitment to quality, ensuring that each part leaving our facility meets and often exceeds our exacting standards. We are resolute in delivering only the highest quality products to our esteemed customers, steadfastly upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our 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)