Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our devotion extends beyond mere commitment-it's a passionate synergy of artistry and science in precision manufacturing that truly distinguishes us. In the realm of high-end component manufacturing, our expertise is unmatched, guiding the path to unrivaled precision and outstanding excellence. As trailblazers of innovation, we spearhead the design and development of groundbreaking intelligent automation equipment. Our cutting-edge solutions serve a wide array of industries, seamlessly addressing diverse applications and needs, such as:
- Medical and Biotech: Providing meticulously crafted components and state-of-the-art solutions for advanced medical devices, upholding the highest quality standards with unwavering dedication.
- Semiconductors: Amplifying chip production and related machinery with essential components that are crucial for the semiconductor sector's swift advancement.
- New Energy: Engaging in the forward-thinking progression of cutting-edge energy equipment, fostering eco-friendly technological innovations.
- Automotive: Supplying pivotal components that drive innovation in the automotive industry, supporting the transition to intelligent and electric vehicles.
Main Products
- We excel in producing bespoke non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary collection of over 300 renowned machines, empowering us to masterfully address a comprehensive spectrum of equipment categories. This expansive capability allows us to expertly fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency. These machines are a testament to our dedication to technological advancement and quality, positioning us as leaders in the precision engineering industry.
- With a rich history spanning two decades, we expertly leverage our vast production experience, seamlessly integrated with substantial technical and process prowess. This synergy guarantees not only exceptional quality but also forward-thinking innovation, distinguishing us as true pioneers in the realm of precision engineering. Our profound expertise and unwavering commitment to excellence ensure we consistently deliver cutting-edge solutions tailored to meet the unique demands of our clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Material Examination: Elevating Integrity and Purity to Unparalleled Heights
Within the esteemed confines of our cutting-edge warehouse, each raw material embarks on a rigorous journey of quality evaluation, ensuring no detail escapes our vigilance. Our thorough assessments delve into both chemical composition and physical properties, guaranteeing only the highest quality materials. We demand strict documentation, requiring a Certificate of Origin and a duly stamped Declaration of Conformity from every supplier, emphasizing our devotion to excellence. Only materials meeting our pinnacle standards of integrity and purity are selected for our precision medical machining services. Our stringent authentication process stands as an unwavering sentinel, ensuring consistent quality throughout every phase of production.
In-Process Quality Assurance: Precision Crafted into Every Detail
Seamlessly woven into our machining operations, each component is subject to exhaustive scrutiny, ensuring dimensions and tolerances not only meet but exceed our rigorous standards. Our continuous inspection protocol is a masterfully designed system, expertly detecting potential defects at their earliest stages, effectively averting non-compliant parts. This vigilant methodology is pivotal in mitigating risks of substandard products, guaranteeing exceptional quality at every stage of production and preserving our esteemed tradition of excellence throughout the entire manufacturing process.
First Article Inspection (FAI): Setting the Standard for Precision and Perfection
Our First Article Inspection (FAI) serves as a strategic cornerstone marked by foresight, swiftly pinpointing and addressing potential production challenges at their inception. This proactive approach acts as a formidable barrier against the propagation of issues into mass production. The meticulous precision of our FAI process is critical in minimizing quality risks, ensuring our products consistently reach the pinnacle of excellence. This unwavering commitment to perfection is intricately woven into each phase of the production cycle, ensuring our standards consistently surpass the highest quality benchmarks.
Comprehensive and Meticulous Final Inspection: Achieving Perfection
Before departing our facility, every product undergoes a final inspection that epitomizes meticulous attention to detail and thoroughness. This rigorous process scrutinizes dimensions, aesthetic appeal, performance, and customer-specific requirements with unparalleled precision. Our comprehensive inspection is not merely a testament but a pledge to our relentless dedication to quality, ensuring each part leaving our facility exemplifies our exacting standards. Our steadfast commitment to delivering only the pinnacle of quality products to our valued customers reinforces our reputation for unrivaled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, tracing its roots back to its foundation in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has consistently stood as a beacon of unparalleled excellence and innovation in high-precision basic component machining. Through relentless dedication to groundbreaking technological advancements over the past two decades, we have immersed ourselves in meticulous technical research, solidifying our status as true pioneers in the realm of precision engineering. We have amassed a remarkable wealth of technical expertise, propelling us to the forefront of the industry and establishing a sterling market reputation as an industry leader. Our unmatched capabilities in precision medical machining services empower us to consistently achieve extraordinarily tight tolerances and impeccable surface finishes, making us the preferred choice among leaders in the medical sector.
With four strategically positioned production bases in the dynamic epicenters of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has forged an incredibly strong, vertically integrated industry chain. This chain seamlessly harmonizes research and development, production, and efficient delivery. Our state-of-the-art facilities are fully equipped to tackle the most intricate and demanding machining tasks, thereby maintaining our esteemed reputation for excellence and pioneering innovation. We ensure that we not only meet but exceed the diverse needs of our clients with outstanding efficiency and unparalleled quality.
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)