Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends simple obligation; it is driven by a passionate fervor for the exquisite craft and meticulous science of precision manufacturing, ensuring unparalleled excellence in every facet of our operation. Our unmatched expertise serves as a guiding light in the realm of high-end component fabrication, illuminating the path to meticulous precision and guaranteeing flawless outcomes in all our endeavors. We are pioneering the development and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions cater to a multitude of industries, effectively addressing diverse applications, including the most complex needs with remarkable efficiency:
- Medical and Biotech: Delivering meticulously engineered high-precision components and innovative solutions for state-of-the-art medical devices, we uphold the pinnacle of quality standards with relentless commitment to excellence in healthcare technology.
- Semiconductors: Empowering chip production and its associated equipment by supplying indispensable core components, our offerings are crucial to the industry's success, fostering innovation and advancement in semiconductor technology.
- New Energy: Engaging in the vigorous and sustainable advancement of innovative energy equipment, we are committed to furthering eco-friendly technological progress, playing a pivotal role in shaping a cleaner, greener future.
- Automotive: Providing vital components that fuel innovation within the automotive sector, we aid the evolution of smart and electric vehicles, driving forward the future of transportation with cutting-edge solutions.
Main Products
- We specialize in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and superior quality. Our commitment to excellence guarantees that our products meet the highest standards of reliability and innovation.
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 robust capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, establishing a standard of excellence that is second to none.
- 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. This unique blend of expertise and ingenuity sets us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unrivaled Incoming Material Inspection
Every single raw material entering our warehouse is subjected to a comprehensive and rigorous examination process. Our meticulous evaluations encompass both the chemical composition and a detailed inspection of the physical properties. We maintain an unwavering commitment to quality by mandating that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the finest materials are chosen for use in our high-precision medical machining services. Our rigorous authentication process guarantees that these materials adhere to the highest standards of integrity and purity, perfectly aligning with our steadfast commitment to unparalleled quality.
Comprehensive In-Process Quality Supervision
Throughout our complex and precise machining operations, each component is meticulously examined to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and continuous inspection protocol is methodically designed to intercept potential defects at an early stage, thereby preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is critical 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) Strategy
Our First Article Inspection (FAI) process functions as a foundational strategy that is crucial for identifying and resolving potential production challenges at an initial 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 reach the summit of standards. This unwavering dedication to excellence permeates every aspect of the production cycle, guaranteeing that we meet and exceed the highest quality benchmarks.
Thorough Final Inspection Excellence
Before any product departs from our facility, it undergoes an exhaustive and meticulous final inspection. This process rigorously evaluates 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 adheres to 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, building upon its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has firmly positioned itself as a beacon of excellence in high-precision component machining. With an unwavering commitment to innovation and excellence over the past two decades, we have immersed ourselves in comprehensive technical research, cementing our status as trailblazers in precision engineering. We have cultivated an extensive reservoir of technical expertise, earning an outstanding market reputation that distinguishes us as industry leaders. Our unparalleled capabilities in precision medical machining services consistently achieve remarkably tight tolerances and flawless surface finishes, establishing us as the preferred partner in the medical sector.
With four strategically positioned production bases in the dynamic centers of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has constructed a powerful and vertically integrated industry chain. This seamlessly blends research and development, production, and delivery processes, ensuring that we not only meet but consistently exceed our customers' diverse needs with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are designed to tackle the most intricate and demanding machining tasks, perpetuating our reputation for excellence and pioneering 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)