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.
- SemiconductorsWith our critical and essential components, we are at the forefront of driving advancements in chip fabrication and related equipment, significantly boosting efficiency and innovation within the semiconductor industry.
- New EnergyWe are pivotal 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 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 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 fueled by an extraordinary ensemble of over 300 state-of-the-art machinery units, marking us as pioneers of industrial innovation. This formidable and cutting-edge assembly places us at the pinnacle of adaptability and precision, ensuring we consistently lead with groundbreaking solutions. We are committed to setting the industry's gold standard for excellence, steadfastly pursuing unrivaled precision and exceptional quality in every endeavor. These Top-Tier Branded Our pioneering machinery units form the bedrock of our precision-focused manufacturing operations, establishing the core infrastructure that upholds our unwavering production standards. With these sophisticated tools, we continuously refine and elevate our manufacturing processes to achieve superior, consistent results. Armed with our top-tier machines, we masterfully execute intricate and demanding machining tasks across diverse industries, achieving unparalleled precision and efficiency. Our expansive capabilities guarantee uncompromising adherence to the highest quality standards while providing bespoke customization that not only meets but consistently exceeds the unique expectations of our esteemed clients, fulfilling their loftiest ambitions.
- Celebrating an illustrious 20-year legacy, we draw from an abundant reservoir of manufacturing expertise intricately interwoven with profound technical knowledge and process mastery. This harmonious synergy ensures not only superior quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that transcend expectations and redefine industry benchmarks 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 realm of innovation, where precision is paramount, we raise industry standards with our unparalleled methodologies. We proudly lay the groundwork for world-class quality benchmarks, establishing revolutionary standards that permeate every stage of our production journey. Our unwavering commitment to excellence is woven into each meticulously crafted step, ensuring our materials are as refined as the sophisticated methods we employ.
Every raw material entering our cutting-edge warehouse is subjected to stringent evaluation, setting new benchmarks in quality assurance. Our holistic approach includes meticulous chemical composition analysis and rigorous assessments of physical properties. Suppliers are mandated to provide a Certificate of Origin, accompanied by a verified Declaration of Conformity, guaranteeing that only the finest materials are utilized in our avant-garde medical machining services. This exacting validation process strengthens the integrity of materials, perfectly aligning with our unwavering dedication to unmatched quality.
Uncompromising In-Process Quality Control: With a steadfast commitment to meticulous detail and relentless vigilance, we relentlessly pursue perfection. This scrupulous process ensures our standard of excellence is consistently met-and often surpassed-across every phase of production.
Throughout the intricate machining process, each component undergoes exhaustive scrutiny to ensure dimensions and tolerances precisely align with our rigorous specifications. This proactive inspection protocol is crucial in identifying and intercepting potential defects, effectively preventing any non-conforming parts from advancing. Through this diligent approach, we dramatically reduce the risk of producing substandard goods, consistently maintaining exceptional quality at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework serves as the bedrock of immaculate excellence, showcasing unmatched precision and thoroughness.
The First Article Inspection (FAI) process stands as a cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the onset. This proactive approach ensures that issues are tackled before escalating into production hurdles. Our comprehensive FAI process is pivotal in minimizing quality risks, guaranteeing our products consistently reach the pinnacle of 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, securing 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 adherence to customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part aligns with our exacting standards, offering our esteemed customers products of the highest caliber.
Packaging & Shipping
Company Profile
Founded in the remarkable year of 2009, with roots stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has become synonymous with innovation in the elite field of high-precision component machining. Our illustrious journey is fueled by a fervent dedication to the intricate artistry and rigorous science of engineering, spanning more than two decades of ceaseless advancement and exceptional precision. We have firmly established our reputation as trailblazers in precision engineering, persistently surpassing the limits of technical research and setting unparalleled industry benchmarks, consistently exceeding expectations in both innovation and unmatched quality. We have cultivated an extraordinary level of technical expertise, positioning ourselves as market leaders with a distinguished reputation for excellence beyond compare. Our unmatched expertise in precision medical machining services consistently delivers the tightest tolerances and impeccable surface finishes. This steadfast commitment solidifies our position as the go-to choice in the medical field. Our precision and unwavering dependability have garnered enduring trust and admiration, establishing us as the leading authority for superior machining solutions.
With four strategically located production facilities, in the vibrant and bustling hubs of Shenzhen and Guiyang, and supported by an esteemed team of over 400 highly skilled specialists, Donghui has meticulously developed a seamless, vertically integrated industry chain. This chain seamlessly links cutting-edge research and development, superior production, and flawless delivery. Our operations ensure we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are exquisitely designed to tackle the most complex and demanding machining challenges, 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)