Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment transcends mere responsibility, evolving into a fervent passion for the sophisticated artistry and meticulous science of precision manufacturing. Our unparalleled expertise shines brilliantly as a guiding light in the realm of high-end component creation, illuminating the path to impeccable precision and unmatched excellence. We stand at the cutting edge of innovation, pioneering the production of groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly serve a multitude of industries, adeptly catering to diverse applications and needs, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components along with pioneering solutions for advanced medical devices, we uphold the highest standards of quality excellence.
- Semiconductors: Enhancing chip production and its ancillary machinery by providing indispensable core components, which are crucial for the industry's robust success.
- New Energy: Engaging actively in the dynamic and sustainable evolution of cutting-edge energy equipment, we champion eco-friendly technological innovations.
- Automotive: Delivering vital components that fuel innovation within the automotive sector, we support the advancement of both smart and electric vehicles.
Main Products
- We specialize in crafting non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and extraordinary 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 expertly cater to a comprehensive array of equipment categories. This capability empowers us to skillfully meet the intricate machining needs of diverse industries with unmatched precision and efficiency.
- With a rich legacy spanning two decades, we leverage vast production experience combined with substantial technical and process expertise, ensuring superior quality and pioneering innovation that distinguish us as leaders in the field of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unwavering Commitment to Purity and Integrity: Exemplary Examination of Incoming Materials
In the revered confines of our warehouse, every raw material undergoes a comprehensive and vigorous examination process, ensuring no detail escapes our attention. We conduct meticulous analyses, diving deep into the chemical composition and thoroughly inspecting physical properties. Our unwavering dedication to quality is evident as we require each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. This stringent protocol guarantees that only the finest materials earn a place in our high-precision medical machining services. Our robust authentication process acts as a stalwart guardian, certifying that these materials achieve the highest standards of integrity and purity, perfectly mirroring our steadfast commitment to excellence.
In-Process Quality Assurance: Precision Perfected at Every Step
Within the intricate choreography of our precise machining operations, each component undergoes meticulous scrutiny, ensuring its dimensions and tolerances not only meet but exceed our rigorous specifications. Our diligent, ongoing inspection protocol is a strategically designed masterpiece, intercepting potential defects at their inception, thereby preventing non-conforming parts from advancing to subsequent stages. This vigilant method is a cornerstone in reducing the risk of substandard goods, guaranteeing superior quality at every phase of production, and maintaining unparalleled excellence throughout the entire process.
First Article Inspection (FAI): Mastering Perfection with Strategic Foresight
Our First Article Inspection (FAI) transcends a mere process; it is a strategic foundation of foresight, essential for identifying and resolving potential production challenges at their earliest stage. This proactive approach acts as a protective measure, preventing issues from escalating into mass production. The thorough and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently achieve the pinnacle of excellence. This steadfast dedication to excellence permeates every aspect of the production cycle, guaranteeing that we exceed even the highest quality standards.
Comprehensive Final Inspection: The Ultimate Commitment to Perfection
Before any product departs from our facility, it undergoes a final inspection that is the epitome of thoroughness and precision. This rigorous process meticulously evaluates dimensions, visual appearance, performance, and any customer-specific requirements with unwavering accuracy. Our comprehensive inspection is more than a mere testament; it is a solemn vow to our relentless pursuit of quality, ensuring that every part leaving our facility is a hallmark of our exacting standards. We remain steadfast in delivering only the highest quality products to our esteemed customers, upholding our illustrious reputation for unmatched excellence and unwavering 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)