Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to the art of precision manufacturing. Where time-honored craftsmanship meets cutting-edge innovation, we usher in a new era of unparalleled excellence. Our relentless pursuit of perfection ensures that each creation is a masterpiece of impeccable artistry. By leveraging the latest technologies and adhering to our unwavering standards of quality, we set ourselves apart, delivering exceptional, intricately engineered components that represent the pinnacle of precision and artistry. With unrivaled expertise in precision engineering, we establish the gold standard for component excellence. Our remarkable agility and refined finesse ensure unparalleled quality across every aspect of our operations, solidifying our status as pioneers and leaders in the industry. As pioneers of innovation, we set new benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into diverse industries, expertly addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions lead the forefront of advanced medical technologies, establishing 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 critical 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 At the heart of our operations lies an impressive fleet of over 300 of the industry's top-tier machinery units, each representing the pinnacle of modern technology. This extensive, sophisticated array propels us to the forefront of innovation and adaptability. By delivering consistently groundbreaking solutions, we establish the benchmark for industry excellence, constantly striving towards unmatched precision and exceptional quality. These Top-Tier Branded Our state-of-the-art machinery units are the foundation of our commitment to precision-driven manufacturing. They form the core infrastructure that upholds our steadfast production standards. With these cutting-edge tools at our disposal, we perpetually refine and elevate our manufacturing processes to consistently achieve remarkable outcomes. Utilizing our top-of-the-line machines, we expertly navigate complex and demanding machining tasks across a multitude of industries, achieving precision and efficiency that is second to none. Our extensive capabilities ensure unwavering adherence to the highest quality standards, offering customized solutions that not only meet but consistently surpass the unique needs of our valued clients, exceeding their highest expectations.
- Celebrating a distinguished 20-year legacy, we draw on an abundant wealth of manufacturing experience, seamlessly combined with profound technical expertise and mastery of processes. This perfect synergy guarantees not only exceptional quality but also pioneering innovation. We empower ourselves to continually deliver extraordinary products that exceed expectations and set new standards of excellence in 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: Embrace a world where precision meets innovation. At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just adhere to industry standards; we redefine them. Our unmatched methodologies lay the groundwork for exceptional quality benchmarks, crafting revolutionary standards that resonate throughout every meticulous stage of our production journey.
Every raw material entering our advanced warehouse is subjected to rigorous scrutiny, setting a benchmark in quality assurance that is unparalleled. Our exhaustive approach involves detailed chemical composition analysis and stringent physical property assessments. Suppliers are mandated to provide a Certificate of Origin with a verified Declaration of Conformity, ensuring only the finest materials are employed in our innovative medical machining services. This meticulous validation fortifies the integrity and purity of materials, seamlessly aligning with our commitment to unparalleled quality.
Uncompromising In-Process Quality Control: With an unwavering dedication to detail, we relentlessly pursue perfection. This meticulous process ensures our standards are consistently met, if not exceeded, showcasing our relentless commitment to excellence.
Throughout the intricate machining process, every component is meticulously scrutinized to ensure dimensions and tolerances align perfectly with our stringent 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 effectively eliminate the risk of substandard production, consistently maintaining exceptional quality at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework embodies immaculate excellence, demonstrating unmatched precision and thoroughness.
The First Article Inspection (FAI) process is the bedrock of our quality strategy, expertly anticipating and resolving potential production challenges from the outset. This proactive method ensures issues are addressed before becoming obstacles, minimizing quality risks. Our comprehensive FAI process reflects our unwavering commitment to excellence, ensuring our products consistently achieve the highest standards across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, dedicated to delivering perfection.
Before a product leaves our facility, it undergoes an exhaustive final inspection. This thorough evaluation assesses dimensions, aesthetics, performance, and customer-specific requirements, underscoring our steadfast dedication to quality. We ensure every delivered part meets our exacting standards, providing our valued customers with products of unsurpassed caliber.
Packaging & Shipping
Company Profile
Founded in the illustrious year of 2009 with roots reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerges as a beacon in the sophisticated arena of high-precision component machining. Our illustrious journey is powered by an unwavering dedication to the intricate craft and precise scientific pursuit of engineering, boasting over two decades of continuous innovation and exceptional precision. We are renowned pioneers in precision engineering, consistently pushing the boundaries of technical research and setting new benchmarks in the industry, effortlessly exceeding expectations in both groundbreaking innovation and unmatched quality. We have meticulously honed an extraordinary level of technical mastery, elevating our stature as market leaders with an unparalleled reputation for excellence. Our specialization in precision medical machining services is unrivaled, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This unwavering commitment solidifies our status as the preferred choice in the medical sector. With precision and steadfast reliability, we have garnered enduring trust and respect, solidifying our position as the elite provider of superior machining solutions.
With four strategically located production facilities, in the dynamic and bustling cities of Shenzhen and Guiyang, bolstered by an outstanding team of over 400 highly skilled specialists, Donghui has expertly constructed a comprehensive, vertically integrated industry chain. This seamless connection spans state-of-the-art research and development, superior production, and impeccable delivery. Our operations ensure we consistently meet and exceed the diverse needs of our clients with unparalleled efficiency and unmatched quality. Our cutting-edge facilities are meticulously designed to tackle the most complex and demanding machining challenges, further enhancing 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)