Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are devoted to the exquisite craft of precision manufacturing, where artistic mastery seamlessly intertwines with pioneering innovation. Our relentless pursuit of excellence guarantees that each creation we bring to life exudes stunning perfection. By steadfastly emphasizing quality craftsmanship and cutting-edge technology, we distinguish ourselves, offering unmatched results with every distinctively crafted component. Our unparalleled prowess in precision engineering sets the benchmark in component manufacturing. We exhibit exceptional dexterity and refined finesse, ensuring flawless execution in every aspect of our craft, positioning us as industry leaders. As trailblazers of innovation, we establish the gold standard in designing and delivering revolutionary intelligent automation equipment. Our avant-garde solutions integrate effortlessly across diverse industries, skillfully addressing specific requirements in a wide range of applications, including:
- Medical and BiotechOur impeccably designed, ultra-high-precision components and transformative solutions are crafted for the cutting edge of advanced medical technologies, setting new milestones in the field.
- SemiconductorsWe enhance chip fabrication and associated equipment by offering essential, vital components that drive extraordinary advancements and improved efficiency in the semiconductor industry.
- New EnergyWe play a crucial role in advancing the innovative and sustainable development of next-generation energy equipment, shaping the future landscape of energy solutions.
- AutomotiveWe provide key components that fuel innovation within the automotive industry, advancing the progression of intelligent and electric vehicles, and defining the future of mobility.
Main Products
- Our expertly crafted non-standard customized components embody the pinnacle of excellence. Serving critical sectors like medical, automation, semiconductor, and automotive industries, we deliver unsurpassed precision and superior quality that withstand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are propelled by an awe-inspiring fleet of over 300 of the industry's most advanced machinery units. This extensive and state-of-the-art collection ensures we maintain our position at the forefront of innovation and adaptability. By perpetually delivering innovative solutions, we establish the industry's benchmark for excellence, consistently driving towards unmatched precision and superior quality. These Top-Tier Branded Our pioneering machinery units serve as the cornerstone of our precision-driven manufacturing process, forming the indispensable infrastructure that upholds our rigorous production standards. Leveraging these cutting-edge tools, we continually refine and elevate our manufacturing strategies to consistently achieve remarkable results. By harnessing our high-caliber machines, we masterfully execute complex and demanding machining requirements across a multitude of industries, attaining an exceptional level of precision and efficiency. Our extensive capabilities guarantee unwavering adherence to the highest quality standards while providing bespoke customization that not only meets but exceeds the individual needs of our valued clients, far surpassing their loftiest expectations.
- With a distinguished 20-year legacy, we draw from a rich reservoir of manufacturing experience seamlessly combined with extensive technical expertise and process mastery. This harmonious synergy guarantees not just exceptional quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that surpass expectations and establish 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
Meticulous and Rigorous Incoming Material Inspection: At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we redefine the frontiers of innovation and precision. Our methodologies not only meet but surpass the industry's highest standards, positioning us as pioneers in establishing superior quality benchmarks. We set revolutionary standards at every production phase, leading the industry in crafting excellence.
Every raw material entering our cutting-edge warehouse undergoes comprehensive and rigorous evaluation, establishing a new benchmark in quality assurance. Our exhaustive approach includes intricate chemical composition analysis and precise physical property assessment. We mandate our suppliers to provide a Certificate of Origin and a verified Declaration of Conformity, ensuring solely premium materials are utilized in our advanced medical machining services. This meticulous validation process safeguards the integrity and purity of materials, perfectly aligning with our unwavering commitment to premium quality.
Unyielding In-Process Quality Control: Our relentless vigilance and meticulous attention to detail fuel our pursuit of perfection with unshakeable dedication.
Throughout the intricate machining process, every component receives meticulous scrutiny to guarantee dimensions and tolerances align perfectly with our rigorous specifications. This ongoing inspection protocol is crucial for proactively identifying and intercepting potential defects, preventing the advancement of any non-conforming parts. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is sustained at every production stage.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the cornerstone of immaculate excellence and unmatched precision.
Our First Article Inspection (FAI) process is the bedrock of our quality strategy, expertly identifying and resolving potential production challenges right from the start. This proactive approach ensures issues are addressed before they escalate into mass production obstacles. This comprehensive FAI process is essential in minimizing quality risks, ensuring our products consistently achieve the zenith of standards, embodying our unwavering commitment to excellence at every stage of production.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of unparalleled quality and precision.
Before any product departs from our facility, it undergoes a thorough and comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection underscores our steadfast dedication to quality, ensuring each part delivered meets our exacting standards, thereby providing our esteemed customers with the highest quality products available.
Packaging & Shipping
Company Profile
Established in the distinguished year of 2009, with roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a luminary in the sophisticated realm of high-precision component machining. With a legacy of unyielding excellence spanning over two decades, we have cemented our position as pioneers in precision engineering. Our journey, driven by a profound dedication to the art and science of engineering, embodies a continual pursuit of innovation and perfection. Renowned for pushing the boundaries of technical research and setting industry benchmarks, our reputation as trailblazers is unmatched. We have meticulously nurtured an exceptional caliber of technical acumen, positioning ourselves as market vanguards with a sterling reputation for unparalleled excellence. Our unrivaled expertise in precision medical machining services consistently meets the most exacting tolerances, delivering flawless surface finishes that cement our status as the preeminent choice in the medical sector. Our precision and steadfast reliability continue to earn unwavering trust and esteem, making us the foremost choice for demanding medical machining needs.
With four strategically located production bases, nestled in the dynamic and bustling centers of Shenzhen and Guiyang, and backed by an impressive team of over 400 highly skilled professionals, Donghui has intricately developed a comprehensive, vertically integrated industry chain that seamlessly links cutting-edge research and development, superior production, and impeccable delivery. This ensures we consistently meet and surpass the diverse needs of our clients with extraordinary efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to undertake the most complex and demanding machining tasks, 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)