Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately devoted to refining the art of precision manufacturing. Where the legacy of time-honored craftsmanship meets the frontier of cutting-edge innovation, we usher in an era of unmatched excellence. Our unwavering pursuit of perfection ensures that each creation is a masterpiece of impeccable artistry. By leveraging the latest technologies and strictly adhering to our unwavering standards of quality, we set ourselves apart, delivering exceptional, intricately engineered components that exemplify the pinnacle of precision and craftsmanship. With unparalleled expertise in precision engineering, we set the benchmark for component excellence. Our extraordinary agility and refined sophistication guarantee unrivaled quality across every dimension of our operations, fortifying our status as pioneers and leaders within the industry. As innovators at the forefront, we redefine industry standards in the design and provision of revolutionary intelligent automation equipment. Our groundbreaking solutions harmoniously integrate into diverse industries, expertly addressing the distinct challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and groundbreaking solutions position us at the forefront of advanced medical technologies, establishing unprecedented standards of excellence in the field.
- SemiconductorsWith our critical and essential components, we lead the charge in propelling advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation within the semiconductor industry.
- New EnergyWe play a pivotal role in the innovative and sustainable progression of next-generation energy equipment, critically shaping the future landscape of energy solutions.
- AutomotiveSupplying indispensable components, we spearhead innovation within the automotive industry. Our contributions propel the development of intelligent and electric vehicles, defining the future of mobility.
Main Products
- Our expertly crafted non-standard customized components are the epitome of excellence. Serving crucial sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality that withstands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations boast a remarkable fleet of over 300 of the most advanced and sophisticated machinery in the industry. This extensive network of cutting-edge technology propels us to the pinnacle of innovation, securing our leadership in both adaptability and precision. We continuously deliver pioneering solutions that set the industry benchmark for excellence, aiming for unparalleled precision and quality that are second to none. These Top-Tier Branded Our groundbreaking machinery units are pivotal to our precision-driven manufacturing operations, forming the backbone of our unwavering production standards. Armed with these cutting-edge tools, we are in a constant state of refinement and enhancement, consistently delivering superior manufacturing outcomes. Our cutting-edge machines enable us to masterfully execute intricate and demanding machining tasks across various industries, achieving unrivaled precision and efficiency. Our expansive capabilities ensure steadfast compliance with the most rigorous quality standards, offering bespoke customization that not only meets but consistently surpasses the distinct expectations of our valued clients, reaching beyond their highest aspirations.
- Celebrating an illustrious 20-year journey, we draw upon a vast reservoir of manufacturing expertise interwoven with profound technical acumen and process mastery. This seamless integration guarantees not only superior quality but also groundbreaking innovation. We are empowered to perpetually deliver awe-inspiring products that exceed expectations and redefine industry standards of excellence.
State-of-the-Art Production Equipment: Leveraging Cutting-Edge Technology for Unrivaled Quality
High-Precision Inspection Equipment: Guaranteeing Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In the ever-evolving realm of innovation where precision is paramount, we redefine industry standards with unmatched methodologies. We lay the groundwork for world-class quality benchmarks, creating revolutionary standards that permeate every aspect of our production journey. Our steadfast commitment to excellence is epitomized in each methodically crafted step, ensuring our materials are as refined as the sophisticated techniques we employ.
Every raw material entering our state-of-the-art warehouse is subjected to a highly stringent evaluation, setting unprecedented benchmarks in quality assurance. Our comprehensive approach includes detailed chemical composition analysis and rigorous assessments of physical properties. Suppliers are obliged to provide a Certificate of Origin alongside a verified Declaration of Conformity, guaranteeing that only premium materials are used in our cutting-edge medical machining services. This rigorous validation process bolsters material integrity, perfectly aligning with our steadfast dedication to superior quality.
Uncompromising In-Process Quality Control: With unwavering commitment to meticulous detail and relentless vigilance, we pursue perfection with steadfast dedication. This scrupulous process ensures our standard of excellence is consistently met-and often exceeded-throughout every production phase.
Throughout the intricate machining process, each component is subjected to exhaustive scrutiny to ensure dimensions and tolerances are precisely aligned with our rigorous specifications. This proactive inspection protocol is crucial for identifying and intercepting potential defects, effectively preventing any non-conforming parts from progressing. Through this diligent approach, we significantly reduce the risk of producing substandard goods, consistently maintaining remarkable quality at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework serves as the cornerstone of immaculate excellence, showcasing unmatched precision and thoroughness.
The First Article Inspection (FAI) process stands as a cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the onset. This proactive approach ensures that issues are addressed before escalating into production obstacles. Our comprehensive FAI process is pivotal in minimizing quality risks, ensuring our products consistently achieve the pinnacle of standards, reflecting our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, safeguarding 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 highlights our steadfast dedication to quality, ensuring every delivered part meets our exacting standards, offering our esteemed customers 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. emerged as a luminary of innovation within the refined sphere of high-precision component machining. Our illustrious journey is driven by an unwavering ardor for the nuanced artistry and exacting science of engineering, spanning over two decades of relentless innovation and extraordinary precision. We have indelibly etched our name as pioneers in precision engineering, continuously pushing the boundaries of technical research, setting groundbreaking industry standards, and consistently surpassing expectations in both innovation and unparalleled quality. We have meticulously cultivated an exceptional level of technical prowess, establishing ourselves as market leaders with a distinguished reputation for unmatched excellence. Our mastery in precision medical machining services is unrivaled, consistently achieving the most stringent tolerances and delivering impeccable surface finishes. This unwavering dedication solidifies our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and esteem, making us the foremost authority for superior machining solutions.
With four strategically positioned production facilities, in the dynamic and bustling centers of Shenzhen and Guiyang, and supported by an extraordinary team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain effortlessly connects cutting-edge research and development, superior production capabilities, and flawless delivery systems. Our operations ensure we consistently meet and exceed the diverse demands of our clients with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are exquisitely designed to handle the most complex and demanding machining tasks, reinforcing our esteemed reputation for excellence and trailblazing 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)