Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication is not merely a duty; it is a vibrant passion woven into every fiber of our existence. We are deeply committed to the beautiful art and intricate science of precision manufacturing, where excellence is not just a goal, it is an unwavering standard. Our unparalleled expertise shines as a beacon in the world of high-end component fabrication, leading the way to achieving unparalleled precision and unmatched quality. We stand at the forefront of innovation, leading the charge in the creation and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions span across a wide spectrum of industries, adeptly fulfilling a diverse array of applications, including:
- Medical and Biotech: Delivering meticulously crafted high-precision components and breakthrough solutions for cutting-edge medical devices, consistently upholding the highest quality standards.
- Semiconductors: Driving the semiconductor industry forward by providing indispensable core components that empower chip production and its associated technologies, ensuring industry success.
- New Energy: Actively participating in the robust and sustainable development of cutting-edge energy equipment, pushing the frontier of eco-friendly technological innovations.
- Automotive: Supplying essential components that drive innovation in the automotive industry, supporting the advancement of intelligent and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, serving extensively across the medical, automation, semiconductor, and automotive sectors, ensuring unmatched precision and exemplary quality in every product we deliver.
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
Exemplary Incoming Material Inspection
Every raw material that enters our warehouse is subject to an exhaustive and stringent examination process. We conduct meticulous analyses, evaluating chemical composition and thoroughly inspecting physical properties. Our unwavering commitment to quality demands that every supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This ensures that only the finest materials are selected for our high-precision medical machining services. Our rigorous authentication process guarantees materials of the highest integrity and purity, perfectly aligning with our steadfast dedication to unparalleled quality.
In-Depth In-Process Quality Assurance
Within our intricate and precise machining operations, every component undergoes meticulous scrutiny to not only meet but exceed our exacting specifications. Our diligent and continuous inspection protocol is strategically designed to identify potential defects early, preventing non-conforming parts from progressing to subsequent stages. This vigilant approach minimizes the risk of substandard goods and ensures superior quality at every phase of production, maintaining excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a foundational strategy crucial for identifying and resolving potential production challenges at an early stage. This proactive approach 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 achieve the highest standards. Our dedication to excellence permeates every aspect of the production cycle, guaranteeing that we meet and exceed the most rigorous quality benchmarks.
Comprehensive and Meticulous Final Inspection
Before any product leaves our facility, it undergoes a meticulous and thorough final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process reflects our relentless commitment to quality, ensuring that every part meets our exacting standards. We are steadfast in delivering only the highest quality products to our valued customers, 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 unparalleled expertise in the domain of high-precision basic component machining. With an unwavering dedication to relentless innovation over the past two illustrious decades, we have delved deep into technical research, firmly establishing ourselves as true pioneers in the art of precision engineering. We have garnered an immense wealth of technical expertise, earning a stellar and impeccable market reputation that distinctively sets us apart as an undisputed leader in the industry. Our unparalleled capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred and trusted choice in the highly demanding medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated and passionate workforce of over 400 exceptionally skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This chain seamlessly weaves together cutting-edge research and development, agile production, and timely delivery, ensuring that we meet and exceed the diverse needs of our valued 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 esteemed 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)
Audited Supplier 
){kind=link}