Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment knows no bounds. It is fueled by a vibrant enthusiasm for the artistry and science of precision manufacturing that goes beyond mere duty. Our unparalleled expertise acts as a beacon in the elite world of high-end component fabrication, charting the course towards impeccable precision. We are at the forefront of innovation, pioneering the creation of revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, expertly addressing a variety of applications, including:
- Medical and Biotech: Crafting meticulously engineered, high-precision components and pioneering solutions for cutting-edge medical devices, maintaining the highest quality standards.
- Semiconductors: Driving the future of chip production and associated equipment by providing essential core components vital to the industry's triumph.
- New Energy: Playing a pivotal role in the robust and sustainable evolution of advanced energy equipment, championing eco-friendly technological advancement.
- Automotive: Offering crucial components that ignite innovation in the automotive realm, supporting the evolution of smart and electric vehicles.
Main Products
- Our expertise lies in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, delivering unparalleled precision and exceptional 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 masterfully address an extensive range of equipment categories. This exceptional capability empowers us to expertly meet the intricate machining demands of diverse industries with unmatched precision and efficiency.
- With a rich history spanning two decades, we harness vast production experience coupled with substantial technical and process expertise, ensuring exceptional quality and forward-thinking innovation. This dedication sets us apart as true pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every raw material that graces our warehouse undergoes a meticulous and comprehensive examination process. Our exhaustive analyses embrace the evaluation of chemical composition alongside an in-depth inspection of the physical properties. We are unwavering in our commitment to quality, meticulously requiring every supplier to furnish a Certificate of Origin and a stamped Declaration of Conformity. This ensures that we exclusively select the finest materials for our precision-driven medical machining services. Our rigorous authentication process is a firm guarantee that these materials meet the highest standards of integrity and purity, perfectly reflecting our steadfast dedication to excellence.
Intensive In-Process Quality Assurance
Amidst our intricate and precision-driven machining operations, every component is meticulously scrutinized to ensure that its dimensions and tolerances do more than merely meet-they exceed our stringent specifications. Our diligent and continuous inspection protocol is strategically crafted to intercept potential defects early in the process, thereby preventing the progression of non-conforming parts to subsequent stages. This vigilant and proactive approach is pivotal in minimizing the risk of substandard goods, ensuring unparalleled quality at each phase of production, and preserving excellence across the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process stands as a foundational strategy pivotal for identifying and resolving potential production challenges at the outset. This proactive approach is instrumental in curbing issues before they escalate into mass production. The exhaustive and precise nature of our FAI process is essential in minimizing quality risks, ensuring our products consistently ascend to unparalleled standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we consistently meet and exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Prior to any product departing our facility, it endures a meticulous and comprehensive final inspection. This process rigorously evaluates dimensions, visual aesthetics, performance, and any customer-specific requirements. Our thorough inspection process is a testament to our relentless devotion to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are unwavering in our commitment to delivering only the pinnacle of quality products to our cherished customers, steadfastly upholding our esteemed reputation for excellence and 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)