Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we passionately embrace the mastery of precision manufacturing, where timeless craftsmanship converges with cutting-edge innovation to usher in a new era of excellence. Our relentless pursuit of perfection ensures that each creation stands as a testament to flawless artistry. With our steadfast commitment to quality and the forefront of technology, we distinguish ourselves by delivering extraordinary, intricately crafted components that exemplify the pinnacle of precision. With unmatched expertise in precision engineering, we establish the gold standard for component excellence. Our remarkable agility and sophisticated finesse assure superior quality in every facet of our operations, reinforcing our reputation as industry pioneers and leaders. As trailblazers in innovation, we elevate the standards in crafting and delivering revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into a diverse array of industries, skillfully addressing the unique challenges posed by various applications, including:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components and transformative solutions are at the forefront of advanced medical technologies, establishing new benchmarks of excellence within the field.
- SemiconductorsBy providing essential and critical components, we spearhead advancements in chip fabrication and associated equipment, significantly boosting efficiency in the semiconductor industry.
- New EnergyWe are pivotal contributors to the innovative and sustainable advancement of next-generation energy equipment, playing an essential role in shaping the future landscape of energy solutions.
- AutomotiveSupplying indispensable components, we are at the forefront of innovation within the automotive industry. Our contributions advance the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize unparalleled excellence. Serving critical sectors such as medical, automation, semiconductor, and automotive industries, we offer unmatched precision and superior quality that endures the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by an exceptional fleet comprising over 300 of the industry's most advanced machinery units. This expansive, state-of-the-art collection not only ensures our leadership in both innovation and adaptability but also reinforces our commitment to pioneering excellence. By consistently delivering groundbreaking and superior solutions, we establish the industry benchmark, constantly aiming for unrivaled precision and exemplary quality. These Top-Tier Branded Our cutting-edge machinery units serve as the cornerstone of our precision-focused manufacturing process, forming a robust infrastructure that upholds our steadfast production standards. Leveraging these state-of-the-art tools, we perpetually refine and enhance our manufacturing techniques, thereby achieving consistently outstanding results. With our top-tier machines, we carry out intricate and demanding machining tasks across numerous industries with unprecedented precision and efficiency. Our expansive capabilities ensure unwavering adherence to the highest quality standards, while our bespoke customization offerings not only fulfill but consistently surpass the unique needs of our valued clients, far exceeding their highest expectations.
- Boasting a distinguished 20-year legacy, we harness a wealth of manufacturing experience seamlessly integrated with profound technical expertise and mastery of processes. This harmonious synergy not only assures exceptional quality but also fosters groundbreaking innovation. We empower ourselves to continuously deliver extraordinary products that surpass expectations and establish new industry standards of excellence.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In the dynamic arena where innovation meets precision, we don't just fulfill the towering expectations of our industry; we transcend them with unparalleled methodologies. We proudly set the stage for superior quality benchmarks, establishing revolutionary standards reverberating throughout the entire spectrum of our production journey.
Every raw material that graces our cutting-edge warehouse is subjected to an exhaustive evaluation, setting the gold standard in quality assurance. Our comprehensive approach encompasses detailed chemical composition analysis and rigorous physical property assessments. Suppliers must present a Certificate of Origin along with a verified Declaration of Conformity, guaranteeing that only the finest materials are reserved for our state-of-the-art medical machining services. This meticulous validation process fortifies the integrity and purity of materials, seamlessly aligning with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering eye for detail, we pursue perfection with steadfast dedication and commitment. This process ensures that our standards of excellence are consistently met and exceeded.
Throughout the intricate machining process, each component undergoes meticulous scrutiny to assure dimensions and tolerances align precisely with our stringent specifications. This ongoing inspection protocol is crucial for proactively identifying and intercepting potential defects, thus preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is upheld at every phase of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, embodying unrivaled precision and thoroughness.
The First Article Inspection (FAI) process forms the bedrock of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This anticipatory approach ensures issues are addressed before they escalate into mass production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, embodying our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring the delivery of perfection.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection underscores our steadfast dedication to quality, ensuring every delivered part meets our exacting standards, thereby providing our esteemed customers with products of the utmost caliber.
Packaging & Shipping
Company Profile
In the illustrious year of 2009, although our roots extend back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon in the sophisticated sphere of high-precision component machining. Our esteemed journey has been driven by an unyielding fervor for the intricate art and rigorous science of engineering, spanning more than two decades of relentless innovation and extraordinary precision. We have magnificently carved our name as trailblazers in precision engineering, consistently advancing technical research and setting groundbreaking industry standards, continually surpassing expectations with both innovative flair and unmatched quality. We have meticulously cultivated an exceptional level of technical expertise, establishing ourselves as market leaders with a distinguished reputation for unrivaled excellence. Our mastery in precision medical machining services is unparalleled, consistently achieving the most stringent tolerances while delivering flawless surface finishes. This unwavering commitment affirms our status as the preferred choice in the medical sector. Our precision and steadfast reliability have garnered us enduring trust and esteem, solidifying our position as the premier provider of superior machining solutions.
With four strategically located production facilities, nestled in the vibrant and dynamic cities of Shenzhen and Guiyang, and fortified by an exceptional team of over 400 highly skilled specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain seamlessly bridges cutting-edge research and development, superior production, and flawless delivery. Our operations ensure we consistently meet and exceed the diverse needs of our clients with unparalleled efficiency and superior quality. Our state-of-the-art facilities are masterfully designed to tackle the most intricate and demanding machining projects, reinforcing 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)