Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we elevate our commitment beyond mere responsibility; it is powered by an ardent enthusiasm for the art and science of precision manufacturing. Our dedication ensures quality with every meticulously crafted piece. Our unrivaled expertise stands as a beacon in the high-end component fabrication industry, leading the way to absolute accuracy and detail-oriented precision. We are at the forefront of innovation, creating and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, providing unparalleled applications across diverse fields, including:
- Medical and Biotech: Delivering precisely engineered, high-precision components and cutting-edge solutions for the latest medical devices, consistently upholding the highest quality standards.
- Semiconductors: Empowering the semiconductor industry by supplying essential core components that are vital for the production of chips and their associated equipment, ensuring industry advancement.
- New Energy: Actively driving sustainable and innovative energy equipment development, promoting eco-friendly technological advancements for a better tomorrow.
- Automotive: Providing essential components that catalyze innovation in the automotive sector, supporting the development of cutting-edge smart and electric vehicles.
Main Products
- We are specialists in non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries. We ensure unparalleled precision and supreme quality in all our offerings.
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. Whether you require manufacturing for cutting-edge medical devices or high-performance aerospace components, our versatile machinery ensures that every product meets the stringent standards of your sector.
- 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 mastery positions us as leaders and pioneers in the realm of precision engineering, consistently pushing the boundaries of what's possible to ensure your satisfaction with every project.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Outstanding Incoming Material Examination Process
Every piece of raw material that enters our facility undergoes a thorough and rigorous examination protocol. Our careful assessments involve a detailed analysis of the chemical composition and a comprehensive inspection of physical properties. We are unwavering in our commitment to excellence by mandating that each supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This process ensures only the highest caliber materials are chosen for our top-tier medical machining applications. Our strict validation procedure guarantees that these materials uphold the highest standards of purity and integrity, ensuring alignment with our resolute dedication to quality.
Rigorous In-Process Quality Assurance
Throughout our complex and precise machining operations, every single component is thoroughly scrutinized to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and ongoing inspection regime is strategically implemented to identify potential defects early, thus preventing non-conforming parts from advancing to the next stages. This proactive vigilance is crucial for minimizing the risk of inferior goods, guaranteeing exceptional quality at every phase of production, and maintaining the highest level of excellence throughout the entire process.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) process is a cornerstone strategy essential for detecting and addressing potential production issues at an early stage. This forward-thinking approach prevents challenges from escalating into larger production problems. The exhaustive and precise characteristics of our FAI process are vital in reducing quality risks, ensuring our products consistently reach the apex of standards. Our commitment to excellence is evident in every facet of the production cycle, ensuring that we consistently meet and exceed the utmost quality benchmarks.
Detailed and Exhaustive Final Inspection
Prior to any product leaving our premises, it is subject to a detailed and exhaustive final inspection procedure. This critical process evaluates dimensions, visual aesthetics, performance, and any customer-specific requirements with precision. Our all-encompassing inspection protocol stands as a testament to our unwavering dedication to quality, guaranteeing that every component dispatched from our facility adheres to our stringent standards. We are resolute in delivering only the finest quality products to our esteemed customers, reinforcing our prestige for excellence and dependability.
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 realm of high-precision basic component machining. With an unwavering commitment to innovation over nearly two decades, we have delved deep into technical research, establishing ourselves as trailblazers in the field of precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that propels us to the forefront as industry leaders. Our capabilities in precision medical machining services are simply unmatched, achieving incredibly tight tolerances and impeccable surface finishes, making us the indisputable choice in the medical sector.
With four strategically located production bases in the vibrant and bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has constructed 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 exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are designed 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)