Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we embody a steadfast commitment to unrivaled excellence, a commitment that transforms every undertaking into a masterpiece of precision engineering. Our fervent dedication and innovative spirit drive us to excel in the art and science of state-of-the-art manufacturing, ensuring that brilliance is not just achieved but transcended. Our expertise is unmatched, guiding the way to extraordinary precision in high-end component manufacturing, where we illuminate paths to excellence that redefine industry standards. Leading the vanguard of innovation, we set the gold standard in the design and creation of revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across diverse industries, addressing a wide range of needs with precision applications, including:
- Medical and Biotech: Providing flawlessly engineered, precision components and pioneering solutions tailored for the next frontier of medical technology.
- Semiconductors: Amplifying the production of essential semiconductor chips and crucial equipment with our indispensable core components.
- New Energy: Making a substantial impact on the innovative and sustainable development of cutting-edge energy equipment.
- Automotive: Supplying crucial components that are pivotal in advancing innovation in the automotive industry, particularly for intelligent and electric vehicles.
Main Products
- Exquisitely designed non-standard custom components, serving critical sectors such as medical, automation, semiconductors, and automotive industries with unparalleled excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by an awe-inspiring fleet of over 300 state-of-the-art machinery units, each a testament to the pinnacle of industrial innovation. This elite collection ensures we maintain an expansive and dynamic spectrum of equipment categories. As trailblazers in innovation and adaptability, we excel across a myriad of industrial landscapes, leading the charge with unparalleled expertise. These top-tier branded machinery units are the foundation upon which our precision-oriented manufacturing is built, forming the bedrock of our operations. Our extensive capabilities empower us to address the multifaceted and challenging machining demands of diverse industries with exceptional precision and efficiency. We adhere to the highest quality standards, offering bespoke customization meticulously crafted to meet the unique requirements of our distinguished clientele, consistently elevating their expectations with every project.
- With an illustrious 20-year legacy, we have cultivated a vast reservoir of manufacturing experience, seamlessly infused with profound technical expertise and process strengths. This ensures the delivery of superior quality and groundbreaking innovation. Our enduring expertise enables us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new benchmarks in industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Extraordinary Precision in Incoming Material Inspection: Elevating Industry Standards
In our cutting-edge warehouse facility, each piece of raw material is subjected to an uncompromising and comprehensive evaluation that defines the pinnacle of quality assurance. Our meticulous process includes a detailed analysis of the chemical composition coupled with an exhaustive examination of the physical characteristics. We uphold an unwavering commitment to excellence, demanding that every supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This meticulous process ensures only the finest materials are selected for our precision-driven medical machining services. Such thorough verification is instrumental in guaranteeing the material's integrity and purity, consistently aligning with our superior standards of quality and precision.
Stringent In-Process Quality Control: Embarking on a Quest for Perfection
During the detailed and complex machining process, each component is meticulously examined to ensure its dimensions and tolerances precisely match our stringent specifications. Our diligent inspection protocol is designed to continuously intercept any potential defects, effectively preventing non-conforming parts from advancing in the production line. This vigilant approach remarkably reduces the risk of producing inferior goods, thereby ensuring top-tier quality is maintained at each pivotal stage of production.
Proactive and All-Encompassing First Article Inspection (FAI): A Preemptive Strategy for Excellence
Our First Article Inspection (FAI) process forms the cornerstone of our strategic approach, skillfully identifying and addressing potential production challenges right from the beginning. This proactive methodology ensures that any issues are mitigated before escalating into mass production, thereby safeguarding a seamless and flawless production flow. Our exhaustive FAI process is crucial in minimizing quality risks, ensuring our products consistently attain the zenith of standards, embodying our unwavering commitment to excellence throughout the production lifecycle.
Meticulous and Detailed Comprehensive Final Inspection: The Ultimate Bastion of Quality
Before any product exits our facility, it undergoes a thorough and exhaustive final inspection. This meticulous evaluation covers all aspects, including dimensions, visual appearance, performance, and any customer-specific requirements. Our extensive inspection underscores our relentless dedication to quality, ensuring that every product dispatched meets our rigorous standards, delivering only the highest quality products to our esteemed and valued clientele.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its founding vision from 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has passionately dedicated itself to mastering the art and science of high-precision component machining. Over the past two decades, through an unwavering commitment to groundbreaking innovation, we have emerged as trailblazers in precision engineering. With relentless technical research and development, we have firmly established ourselves as industry pioneers, setting and surpassing benchmarks of excellence with every project we undertake. Our company boasts a wealth of exceptional technical expertise, solidifying our position as market leaders with a reputation for unparalleled excellence. Our superior skill in precision medical machining services consistently achieves the most stringent tolerances and flawlessly impeccable surface finishes. This distinction makes us the top choice within the medical sector, where our precision and reliability are esteemed and absolutely indispensable.
With four strategically positioned production bases, situated in the dynamic hubs of Shenzhen and Guiyang, powered by an ambitious and skilled workforce of over 400 highly trained employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and efficient delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are expertly equipped to tackle the most intricate and challenging machining tasks, cementing our prestigious reputation for excellence and 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)