Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication is not merely a duty but a passionate commitment. This fervor propels us into the intricate world of precision manufacturing, where artful craftsmanship meets scientific accuracy at its finest. Our unparalleled expertise shines like a beacon in the high-end component fabrication industry, illuminating the way to achieving meticulous precision that our clients can depend on. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly serve a wide spectrum of industries, catering to a variety of applications, which include:
- Medical and Biotech: We deliver meticulously engineered, high-precision components and innovative solutions for cutting-edge medical devices, consistently upholding the highest quality standards in the industry.
- Semiconductors: We empower the semiconductor industry by providing essential core components necessary for successful chip production and associated equipment.
- New Energy: We are dedicated to the dynamic and sustainable growth of pioneering energy equipment, driving forward eco-friendly technological advancements.
- Automotive: We supply crucial components that drive innovation in the automotive sector, supporting the development of smart and electric vehicles.
Main Products
- We specialize in creating non-standard customized components that extensively serve the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and superior 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 a comprehensive spectrum of equipment categories. This unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency.
- 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. These qualities set 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
In our unwavering dedication to quality, every piece of raw material that enters our state-of-the-art warehouse undergoes an exhaustive evaluation. Our rigorous examination process comprises a detailed analysis of the chemical composition and an intensive inspection of the material's physical properties. With an uncompromising commitment, we mandate each supplier to furnish a Certificate of Origin alongside a stamped Declaration of Conformity. This ensures that only the highest-caliber materials are selected for integration into our precision-driven medical machining services. Our stringent authentication protocol guarantees that these materials not only meet but surpass the pinnacle of standards for integrity and purity, reflecting our steadfast devotion to exceptional quality.
Intensive In-Process Quality Assurance
In the realm of our detailed and precise machining operations, every component is subject to scrutiny that goes beyond simple compliance with dimensional and tolerance specifications. Our rigorous inspection protocols are strategically crafted to pinpoint potential discrepancies early, ensuring non-conforming parts are intercepted swiftly and do not advance through the production line. This vigilant and proactive approach is essential in substantially reducing the risk of substandard products, thereby upholding superior quality at each phase of production and fostering an environment of unparalleled excellence throughout the entire manufacturing process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is more than just a step; it's a strategic cornerstone designed to preemptively identify and resolve potential production hurdles before they can affect mass production. This proactive methodology is integral to minimizing quality risks, ensuring our products consistently soar to the apex of industry standards. Our commitment to excellence is deeply ingrained in every phase of the production cycle, guaranteeing that each product not only meets but exceeds the most stringent quality benchmarks, thereby perpetuating our legacy of superiority.
Meticulous Comprehensive Final Inspection
As a testament to our relentless pursuit of quality, every product exiting our facility is subjected to an exhaustive and meticulous final inspection. This comprehensive process scrutinizes dimensions, assesses visual aesthetics, evaluates performance, and verifies compliance with any customer-specific requirements. This rigorous inspection protocol stands as a beacon of our unwavering commitment to quality, ensuring that every component dispatched from our facility meets our lofty standards of excellence. We remain steadfast in our mission to deliver only the finest products to our cherished customers, reinforcing our esteemed reputation for reliability and quality.
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)