Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are ardently committed to perfecting the art of precision manufacturing. Where timeless craftsmanship meets groundbreaking innovation, we initiate a new era of unmatched excellence. Our unwavering pursuit of perfection ensures that each creation is a testament to flawless artistry. Leveraging the latest technologies and maintaining steadfast standards of quality, we set ourselves apart, delivering exceptional, intricately engineered components that epitomize precision and artistry. With unparalleled expertise in precision engineering, we set the gold standard for component excellence. Our remarkable agility and sophisticated finesse guarantee exceptional quality in every aspect of our operations, establishing our status as industry pioneers and leaders. As pioneers of innovation, we redefine benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into diverse industries, addressing the unique challenges of various applications with mastery, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions spearhead the forefront of advanced medical technologies, establishing unprecedented standards of excellence in the field.
- SemiconductorsBy supplying critical, essential components, we drive advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation within the semiconductor industry.
- New EnergyWe play a pivotal role in advancing the innovative and sustainable evolution of next-gen energy equipment, crucially contributing to the future landscape of energy solutions.
- AutomotiveProviding indispensable components, we spearhead innovation in the automotive industry. Our contributions push the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components represent the pinnacle of excellence. Servicing vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that endures.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are propelled by an extraordinary fleet of over 300 of the industry's most sophisticated machinery units. This vast, cutting-edge assembly secures our leadership in both innovation and versatility. By consistently delivering pioneering solutions, we not only set but exceed the industry's benchmark for brilliance, perpetually striving for unmatched precision and exemplary quality. These Top-Tier Branded Our avant-garde machinery units lay the foundation of our precision-driven manufacturing process, forming the essential backbone that upholds our steadfast production standards. Through these state-of-the-art instruments, we continually refine and amplify our manufacturing techniques to consistently achieve phenomenal results. With our high-caliber machines, we precisely tackle intricate and demanding machining tasks across a multitude of industries, achieving peerless precision and efficiency. Our extensive capabilities ensure uncompromising adherence to the most stringent quality standards while providing customized solutions that not only meet but consistently exceed the unique needs of our valued clients, surpassing their highest expectations with ease.
- Celebrating a distinguished 20-year legacy, we draw from a rich reservoir of manufacturing expertise seamlessly woven with profound technical knowledge and mastery of processes. This harmonious blend guarantees not only superior quality but also transformational innovation, empowering us to consistently deliver remarkable products that surpass expectations and redefine 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 an ever-evolving world where innovation and precision are crucial, we do more than just meet the industry's towering expectations; we redefine them with unmatched methodologies. Our commitment is to establish the foundation for superior quality benchmarks, setting revolutionary standards that resonate throughout every stage of our production journey.
Each raw material that graces our state-of-the-art warehouse undergoes a stringent evaluation, establishing a benchmark in quality assurance. Our comprehensive approach includes in-depth chemical composition analysis and rigorous physical property assessments. We insist that suppliers provide a Certificate of Origin alongside a verified Declaration of Conformity, guaranteeing that only the finest materials are used in our cutting-edge medical machining services. This meticulous validation process fortifies the integrity and purity of materials, perfectly aligning with our unwavering dedication to superior quality.
Uncompromising In-Process Quality Control: With an unwavering commitment to detail and relentless vigilance, we pursue perfection with steadfast dedication. This rigorous process ensures that our standards of excellence are consistently met-and often surpassed.
Throughout the intricate machining process, each component undergoes thorough scrutiny to ensure dimensions and tolerances align precisely with our stringent specifications. This proactive inspection protocol is vital in identifying and intercepting potential defects, preventing any non-conforming parts from progressing. Through this diligent strategy, we significantly mitigate the risk of producing substandard goods, consistently ensuring exceptional quality is maintained at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework forms the bedrock of immaculate excellence, exemplifying unparalleled precision and thoroughness.
The First Article Inspection (FAI) process is the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges right from the start. This proactive approach ensures that issues are addressed before they escalate into production obstacles. Our comprehensive FAI process is essential in minimizing quality risks, ensuring 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, safeguarding the delivery of perfection.
Before any product departs from our facility, it is subjected to a meticulous and detailed comprehensive final inspection. This rigorous evaluation includes assessments of dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection highlights 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. At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., 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)