Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication to excellence transforms craftsmanship into an art. With precision as our hallmark and innovation as our guide, we thrive at the apex of manufacturing mastery. Our expertise sets the gold standard in precision, guiding the way in the elite arena of high-end component manufacturing with unparalleled quality. By leading innovation's vanguard, we set benchmarks in the design and engineering of avant-garde intelligent automation equipment. Our pioneering solutions fluidly integrate across a wide spectrum of industries, flawlessly fulfilling diverse requirements with precision applications, including:
- Medical and Biotech: Creating meticulously engineered, exceptionally precise components and groundbreaking solutions that are set to revolutionize the future of medical technology.
- Semiconductors: Enhancing chip production and requisite equipment through vital core components.
- New Energy: Contributing significantly to the sustainable growth and evolution of innovative energy systems.
- Automotive: Providing indispensable components that propel innovation in the automotive realm, paving the way for intelligent and electric vehicle advancements.
Main Products
- Expertly engineered custom components, designed to meet the unique demands of industries such as medical, automation, semiconductor, and automotive with unmatched distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an unrivaled fleet of over 300 of the industry's most advanced machinery units. This extraordinary collection empowers us to maintain a diverse and dynamic array of equipment categories, ensuring we consistently lead the way in innovation and adaptability across an array of industrial landscapes. These premium branded machinery units form the cornerstone of our precision-driven manufacturing. Empowering us to meet the intricate and demanding machining needs of an array of industries with exceptional precision and efficiency, our extensive capabilities ensure adherence to the highest quality standards. We provide bespoke customization, meticulously crafted to meet the unique requirements of our esteemed clientele, consistently elevating their expectations with each project.
- With an illustrious 20-year legacy, we possess a rich reservoir of manufacturing acumen, seamlessly interwoven with profound technical expertise and process strengths. This ensures the delivery of superior quality and groundbreaking innovation. Our enduring expertise enables us to continually deliver exceptional 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
Meticulous and Rigorous Incoming Material Inspection: Surpassing Industry Benchmarks with Unrivaled Precision: Elevating Quality to New Heights
Within the realms of our state-of-the-art warehouse, every raw material is meticulously scrutinized with an exhaustive evaluation process, setting a new paradigm for excellence in quality assurance. Our rigorous approach includes an in-depth analysis of chemical compositions, coupled with an extensive physical attribute examination. We uphold the highest standards by mandating that suppliers furnish a Certificate of Origin along with a stamped Declaration of Conformity. This ensures the selection of only the finest materials for our precision-focused medical machining services. Our stringent validation protocol guarantees material purity and integrity, consistently meeting and surpassing our elevated precision and quality benchmarks.
Rigorous In-Process Quality Control: The Relentless Pursuit of Perfection
Throughout every intricate stage of the machining process, each component is thoroughly scrutinized to ensure its dimensions and tolerances meet our exacting specifications. Our rigorous inspection regimen remains ever-vigilant, intercepting potential defects to prevent non-conforming parts from proceeding. This proactive approach dramatically reduces the risk of substandard products, ensuring exemplary quality is meticulously maintained at every critical production stage.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Unrivaled Excellence: Setting the Standard for Quality Assurance
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the onset. This proactive methodology ensures issues are addressed before transitioning to mass production, facilitating a seamless flow of flawless manufacturing. Our thorough FAI process is indispensable for minimizing quality risks, ensuring our offerings consistently meet the highest standards, highlighting our unwavering commitment to excellence throughout the entire production lifecycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Arbiter of Quality, Delivering Perfection
Before any product leaves our premises, it undergoes a comprehensive and meticulous final inspection. This thorough evaluation encompasses dimensions, visual appeal, performance, and bespoke customer requirements. Our exhaustive inspection process is a testament to our unwavering dedication to quality, ensuring each dispatched piece meets our exacting standards, thus providing only top-tier products to our esteemed 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 innovation and excellence, we have emerged as trailblazers in precision engineering. Our relentless technical research and innovative solutions have established us as industry pioneers, setting unparalleled excellence benchmarks. Our company boasts a wealth of exceptional technical expertise, solidifying our position as market leaders renowned for unparalleled excellence. Our superior skill in precision medical machining services consistently achieves the most stringent tolerances and flawless surface finishes. This distinction makes us the top choice within the medical sector, where our precision and reliability are esteemed and indispensable by healthcare professionals and industry experts alike.
With four strategically positioned production bases, situated in the dynamic hubs of Shenzhen and Guiyang, and fueled by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring 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 undertake 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)