Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by a relentless pursuit of excellence, guided by a profound dedication to the art and science of manufacturing brilliance. Our craftsmanship is not just a process but a passion, intricately woven into every component we create. With unmatched proficiency, we illuminate the path of precision engineering, placing ourselves among the elite in component manufacturing. Our expertise is unparalleled, allowing us to deliver products that redefine industry standards. As pioneers of innovation, we set the standard in designing and delivering groundbreaking intelligent automation equipment. Our cutting-edge solutions are seamlessly integrated across a multitude of industries, adeptly adapting to diverse demands in numerous applications, including:
- Medical and Biotech: We offer meticulously engineered, precision components and pioneering solutions specifically tailored for the future evolution of medical devices. Our products ensure the highest standards of quality and innovation.
- Semiconductors: We enhance chip production and associated equipment with essential components that are both critical and indispensable, ensuring leading-edge performance and reliability.
- New Energy: We play a vital role in the innovative and sustainable advancement of next-generation energy equipment, driving forward the future of energy solutions with our expertise.
- Automotive: Our key components drive innovation within the automotive industry, supporting the evolution of smart and electric vehicles with groundbreaking technology.
Main Products
- Skillfully crafted, non-standard customized components serve crucial industries such as medical, automation, semiconductor, and automotive sectors with unmatched excellence. Our products are tailored to meet the unique demands of each industry, setting new benchmarks for quality and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are distinguished by an unparalleled fleet of over 300 of the industry's most advanced and sophisticated machinery units. This impressive array ensures we maintain a highly comprehensive and diverse catalog of equipment categories, empowering us to remain at the forefront of cutting-edge innovation and adaptability. Our vast collection of state-of-the-art machines facilitates the delivery of truly groundbreaking solutions. These Top-Tier Branded machinery units form the very backbone of our precision-focused manufacturing excellence, providing the robust foundation upon which all our operations are built. Armed with these high-caliber machines, we expertly cater to intricate and demanding machining requirements across a multitude of industries, achieving unparalleled precision and efficiency. Our comprehensive capabilities ensure strict adherence to the highest quality standards while offering bespoke customization solutions, meticulously tailored to meet the unique demands of our esteemed clientele.
- With a prestigious 20-year legacy, we leverage an extensive wealth of manufacturing experience, seamlessly integrating it with substantial technical expertise and process strengths. This guarantees superior quality and groundbreaking innovation, empowering us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new benchmarks within the industry.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous Precision in Incoming Material Inspection: Setting Unparalleled Industry Standards
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we redefine quality assurance with our exhaustive and meticulous evaluation process for every batch of raw materials entering our secure warehouse. Our commitment to unparalleled excellence is showcased through a comprehensive chemical and physical analysis of each material, setting a new benchmark for quality. We demand a Certificate of Origin and a stamped Declaration of Conformity from every supplier to ensure that only top-tier materials are used in crafting our advanced CNC machining parts for the semiconductor industry. This stringent authentication process not only guarantees material integrity and purity but also ensures steadfast adherence to our elevated standards, thereby underpinning the supreme quality of our high-precision medical machining services.
In-Process Quality Control: Relentless Pursuit of Perfection
During the intricate and sophisticated machining process, each component undergoes meticulous scrutiny to ensure precision in dimensions and tolerances, precisely aligning with our rigorous specifications. This continuous inspection protocol is crafted to proactively detect potential defects, effectively preventing non-conforming parts from progressing in production. Through this vigilant and scrupulous approach, we significantly reduce the risk of producing substandard goods, thereby consistently maintaining superior quality at every stage of production.
Comprehensive First Article Inspection (FAI): Proactive Excellence and Precision Framework
Our First Article Inspection (FAI) is a vital cornerstone of our strategic quality assurance framework. This meticulous process skillfully identifies and resolves potential production challenges at the outset, preventing issues from escalating into large-scale production problems. Our comprehensive FAI process is crucial for minimizing quality risks and ensuring our products consistently achieve the highest quality standards. It epitomizes our unwavering dedication to excellence and our commitment to maintaining these standards throughout the entire production cycle.
Comprehensive Final Inspection: The Ultimate Guardian of Uncompromised Quality
Before any product leaves our state-of-the-art facility, it undergoes a thorough and meticulous final inspection process. This rigorous evaluation covers dimensions, visual appeal, performance, and any customer-specific requirements. Our extensive inspection regimen is a testament to our relentless and uncompromising commitment to quality, ensuring that every part dispatched meets our exacting standards. We are committed to delivering only the highest quality products to our esteemed customers, ensuring satisfaction and excellence with every piece.
Packaging & Shipping
Company Profile
Founded in the celebrated year of 2009 and tracing our roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands at the forefront of the high-precision component machining industry as a luminary of innovation and precision. Our storied journey, fueled by an unyielding passion and steadfast commitment to the mastery of engineering, stretches across more than two extraordinary decades. We have fervently established ourselves as trailblazers in precision engineering, tirelessly driving technical research and setting industry standards with unparalleled excellence. We have masterfully honed an unrivaled depth of technical prowess, proudly placing ourselves at the apex of the market with a renowned reputation for outstanding excellence. Our exceptional skill in precision medical machining services consistently meets the most demanding tolerances and delivers impeccable surface finishes. This cements our position as the top choice in the medical sector, where our precision and reliability continue to garner unwavering trust and admiration.
With four strategically located production bases, situated in the vibrant and prosperous centers of Shenzhen and Guiyang, bolstered by a motivating workforce exceeding 400 exceptionally skilled professionals, Donghui has meticulously crafted a robust, vertically integrated industry chain. This seamlessly connects research and development, superior production, and impeccable delivery, ensuring that we not only meet but surpass the diverse needs of our clients with extraordinary efficiency and unmatched quality. Our cutting-edge facilities are fully equipped to tackle the most intricate and demanding machining tasks, further solidifying our esteemed reputation for excellence and pioneering 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)