Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to perfecting the craft of precision manufacturing. Where time-honored craftsmanship intersects with cutting-edge innovation, we herald a new era of unparalleled excellence. Our relentless quest for perfection ensures that every creation is a tribute to impeccable artistry. By harnessing the latest technologies and adhering to our unwavering standards of quality, we distinguish ourselves, delivering exceptional, intricately engineered components that represent the pinnacle of precision and artistry. With unmatched expertise in precision engineering, we establish the gold standard for component excellence. Our remarkable agility and sophisticated finesse ensure unparalleled quality across every facet of our operations, solidifying our position as pioneers and leaders in the industry. As trailblazers of innovation, we redefine benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into diverse industries, masterfully addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions lead the vanguard of advanced medical technologies, setting unprecedented standards of excellence in the field.
- SemiconductorsSupplying critical, essential components, we drive advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation in the semiconductor industry.
- New EnergyWe play a pivotal role in the innovative and sustainable evolution of next-generation energy equipment, crucially contributing to the future landscape of energy solutions.
- AutomotiveProviding indispensable components, we lead innovation in 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 are the epitome of excellence. Serving vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that stands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are empowered by an extraordinary fleet comprising over 300 of the industry's most advanced machinery units. This vast and sophisticated array ensures our pioneering stance in innovation and adaptability. By relentlessly providing transformative solutions, we establish the industry standard for excellence, perpetually pursuing unmatched precision and exemplary quality. These Top-Tier Branded Our groundbreaking machinery units are the cornerstone of our precision-driven manufacturing process, forming the essential infrastructure that upholds our steadfast production standards. With these cutting-edge tools, we continuously refine and enhance our manufacturing techniques to consistently achieve exceptional results. Through our superior machines, we expertly execute intricate and demanding machining tasks across a spectrum of industries, achieving unrivaled precision and efficiency. Our extensive capabilities ensure rigorous adherence to the most stringent quality standards while offering bespoke customization that not only meets but consistently exceeds the distinctive needs of our esteemed clients, greatly surpassing their highest expectations.
- Celebrating a prestigious two-decade legacy, we draw upon a wealth of manufacturing experience intricately woven with profound technical expertise and process mastery. This harmonious synergy ensures not only outstanding quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and set new benchmarks of excellence within the industry.
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 an era of rapid advancements and precision, merely fulfilling industry expectations is not enough; we redefine them through unparalleled methodologies. We proudly lay the groundwork for superior quality benchmarks, setting groundbreaking standards that echo throughout every phase of our production journey.
Every raw material entering our cutting-edge warehouse undergoes a rigorous evaluation, establishing a new benchmark in quality assurance. Our all-encompassing approach includes in-depth chemical composition analysis and thorough physical property assessments. Suppliers must submit a Certificate of Origin with a verified Declaration of Conformity, ensuring only the finest quality materials are utilized in our advanced medical machining services. This meticulous validation process reinforces the integrity and purity of materials, perfectly aligning with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With an unwavering devotion to detail and relentless vigilance, we pursue perfection with steadfast dedication. This meticulous process ensures our standards of excellence are constantly met and frequently surpassed.
Throughout the intricate machining process, each component undergoes comprehensive scrutiny to ensure dimensions and tolerances strictly adhere to our rigorous specifications. This proactive inspection protocol is crucial in identifying and intercepting potential defects, preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality across every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework forms the bedrock of immaculate excellence, exemplifying unmatched precision and thoroughness.
The First Article Inspection (FAI) process is central to our quality strategy, expertly pinpointing and resolving potential production challenges from the outset. This proactive approach ensures that issues are addressed before they evolve into production hurdles. Our comprehensive FAI process is pivotal in minimizing quality risks, ensuring our products consistently achieve the highest standards and reflecting 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 includes assessments of dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our steadfast dedication to quality, ensuring that every delivered part meets our exacting standards and provides our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, though our origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. was established as a luminary in the refined domain of high-precision component machining. Our prestigious journey has been fueled by a relentless passion for the nuanced art and exacting science of engineering, spanning more than two decades of unyielding innovation and extraordinary precision. We have brilliantly etched our name as pioneers in precision engineering, perpetually advancing technical research and establishing groundbreaking standards in the industry, continually surpassing expectations in both innovation and unparalleled quality. We have diligently cultivated an extraordinary level of technical prowess, positioning ourselves as market leaders with a prestigious reputation for unmatched excellence. Our expertise in precision medical machining services is second to none, consistently achieving the strictest tolerances and delivering impeccable surface finishes. This dedication confirms our position as the preferred choice in the medical sector. Our precision and unwavering reliability have earned us enduring trust and regard, making us the foremost name for superior machining solutions.
With four strategically positioned production facilities, in the vibrant and bustling hubs of Shenzhen and Guiyang, and supported by an impressive team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain seamlessly connects cutting-edge research and development, superior production, and impeccable delivery. Our operations guarantee we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are exceptionally designed to handle the most intricate and demanding machining tasks, bolstering our esteemed 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)