Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not merely committed-we are passionately driven by our fervent devotion to the artful craft and scientific mastery inherent in precision manufacturing. This unwavering dedication is the heartbeat of our operations, propelling us to achieve excellence. Our unparalleled expertise stands as a beacon in the high-end component fabrication landscape, guiding our pursuit of meticulous precision with unwavering focus and determination. We are at the forefront of developing and producing groundbreaking intelligent automation equipment. Our cutting-edge solutions are crafted for a multitude of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously crafted high-precision components and pioneering solutions for cutting-edge medical devices, steadfastly upholding the highest benchmarks of quality standards.
- Semiconductors: Empowering chip production and its related equipment through the provision of essential core components that are pivotal to the industry's advancement.
- New Energy: Engaging vigorously in the sustainable advancement of groundbreaking energy equipment, propelling eco-friendly technological progress for a greener tomorrow.
- Automotive: Supplying key components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles to new heights.
Main Products
- We are specialists in non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries, ensuring precision that is unmatched and quality that is superior.
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 exceptional capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and unparalleled efficiency.
- With an illustrious history spanning two decades, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. leverages vast production experience combined with substantial technical and process prowess, guaranteeing superior quality and forward-thinking innovation. These strengths distinctly set us apart as trailblazers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Examination
Every piece of raw material that enters our storeroom is subjected to an intensive and comprehensive examination process. Our detailed evaluations encompass both the chemical composition and an in-depth assessment of physical properties. We are firmly committed to upholding the highest standards of quality by mandating all suppliers to furnish a Certificate of Origin alongside a stamped Declaration of Conformity. This thorough process ensures that only the most superior materials are chosen for our cutting-edge medical machining services. Through our stringent validation procedures, we assure that these materials adhere to the highest levels of integrity and purity, perfectly reflecting our unwavering dedication to quality.
Rigorous In-Process Quality Assurance
In our complex and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our high standards. Our vigilant, continuous inspection protocol is expertly crafted to catch potential defects early, preventing any non-conforming parts from moving forward in the production line. This diligent approach is crucial in reducing the risk of inferior goods, ensuring unparalleled quality at every production phase, and sustaining excellence throughout the entire manufacturing process.
Strategic and Comprehensive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy vital for early detection and resolution of potential production issues. This proactive measure prevents any challenges from escalating into full-scale production problems. The detailed and accurate nature of our FAI process is imperative in mitigating quality risks, ensuring that our products consistently reach the highest standards. This unwavering commitment to excellence is ingrained in every step of our production cycle, guaranteeing that we not only meet but exceed the most stringent quality benchmarks.
Thorough and Comprehensive Final Inspection
Before any product is dispatched from our facility, it undergoes a meticulous and exhaustive final inspection. This rigorous process thoroughly assesses dimensions, visual appeal, performance, and all customer-specific requirements. Our comprehensive inspection protocol is a testament to our relentless dedication to quality, ensuring that every product leaving our facility meets our stringent standards. We are committed to delivering only top-tier quality products to our esteemed customers, firmly upholding our reputation 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 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)