Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment extends beyond mere duty; it is fueled by an ardent passion for the fine art and exacting science of precision manufacturing. Our unparalleled proficiency lights the way in the domain of elite component fabrication, shedding light on the path to scrupulous precision. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and groundbreaking solutions for cutting-edge medical devices, consistently meeting the highest quality standards.
- Semiconductors: Empowering the production of chips and their associated equipment by providing critical core components that are essential to the industry's prosperity.
- New Energy: Engaging in the dynamic and sustainable development of innovative energy equipment, driving forward eco-friendly technological advancements.
- Automotive: Supplying indispensable components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We specialize in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unrivaled precision and superior 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.
- 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.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Outstanding Incoming Material Examination
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., each raw material entering our facility undergoes an exhaustive and stringent examination process. Our meticulous analyses encompass a thorough evaluation of both chemical composition and physical properties. We uphold an unwavering commitment to quality by mandating that every supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This rigorous authentication process ensures that only the finest materials are chosen for our high-precision medical machining services. By guaranteeing that these materials meet the highest standards of integrity and purity, we align perfectly with our steadfast dedication to delivering superior quality.
Thorough In-Process Quality Assurance
Within our intricate and precise machining operations, every component is scrutinized meticulously to ensure its dimensions and tolerances not only meet but also exceed our exacting specifications. Our diligent and continuous inspection protocol is designed strategically to intercept potential defects at an early stage, thereby preventing non-conforming parts from progressing further. This vigilant approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at each phase of production, and maintaining excellence throughout the entire process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a foundational strategy crucial for early identification and resolution of potential production challenges. This proactive measure prevents issues from escalating into mass production. The comprehensive and precise nature of our FAI process is essential in minimizing quality risks, ensuring our products consistently ascend to the highest standards. This dedication to excellence permeates every aspect of the production cycle, guaranteeing that we consistently meet and exceed the highest quality benchmarks.
Meticulous and Comprehensive Final Inspection
Before any product departs from our premises, it undergoes a meticulous and comprehensive final inspection. This rigorous evaluation process assesses dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are steadfast in delivering only the highest quality products to our esteemed customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, building upon its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has unveiled itself as a paragon of expertise in the realm of high-precision basic component machining. With an unwavering commitment to innovation and excellence over the past two decades, we have delved deeply into technical research, establishing ourselves as trailblazers in the sphere of precision engineering, consistently pushing the boundaries of what's possible. We have cultivated an expansive reservoir of technical expertise, earning a prestigious market reputation that distinguishes us as leaders within the industry. Our unrivaled capabilities in precision medical machining services consistently achieve incredibly tight tolerances and impeccable surface finishes, positioning us as the preferred choice within the medical sector.
With four strategically located production bases in the bustling and thriving hubs of Shenzhen and Guiyang, supported by a dedicated and skilled workforce of over 400 talented employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This chain seamlessly weaves together research and development, production, and delivery, ensuring that we not only meet but exceed the diverse needs of our customers with unparalleled efficiency and exceptional quality. Our state-of-the-art facilities are adept at handling the most intricate and demanding machining tasks, cementing our reputation for excellence and groundbreaking innovation in the industry.
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)
Audited Supplier 
){kind=link}