Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are deeply engrossed in a realm where perfection meets innovation. Our steadfast commitment to the artistry of precision manufacturing ensures each creation reflects untarnished excellence. With an unwavering focus on impeccable craftsmanship and cutting-edge technology, we distinguish ourselves by delivering unmatched results with every intricately manufactured component. Our unmatched expertise reigns supreme in the world of precision engineering. Navigating the esteemed craft of component manufacturing with unparalleled skill and sophisticated finesse, we ensure excellence is achieved at every step. As trailblazers of innovation, we set the benchmark in designing and delivering revolutionary intelligent automation equipment. Our forward-thinking solutions effortlessly integrate into a variety of industries, expertly satisfying diverse requirements across numerous applications, including:
- Medical and Biotech: Offering impeccably crafted, ultra-high-precision components along with transformative solutions, meticulously designed for the cutting-edge of advanced medical technologies.
- Semiconductors: Enhancing chip production and associated equipment with essential, critical components that drive remarkable advancements and superior efficiency.
- New Energy: Playing a crucial role in advancing the innovative and sustainable development of next-generation energy equipment, shaping the future landscape of energy solutions.
- Automotive: Delivering essential components that propel innovation within the automotive industry, fostering the advancement of intelligent and electric vehicles.
Main Products
- Our meticulously engineered non-standard customized components represent the zenith of excellence. Serving critical sectors such as medical, automation, semiconductor, and automotive industries, we offer unparalleled 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 are powered by an impressive fleet of over 300 of the industry's most sophisticated machinery units. This extensive and advanced collection ensures we remain at the cutting-edge of innovation and adaptability. By consistently delivering groundbreaking solutions, we set the industry's standard for excellence, driving towards unparalleled precision and superior quality. These Top-Tier Branded Our pioneering machinery units are the foundation of our precision-focused manufacturing process, forming the essential infrastructure that supports our rigorous production standards. Utilizing these state-of-the-art tools, we continuously refine and enhance our manufacturing strategies to achieve outstanding results consistently. By employing our high-caliber machines, we expertly execute complex and challenging machining requirements across diverse industries, achieving an unmatched level of precision and efficiency. Our vast capabilities ensure unwavering adherence to the highest quality standards while delivering bespoke customization that not only meets but exceeds the unique needs of our esteemed clients, far surpassing their highest expectations.
- With a prestigious 20-year legacy, we draw from a deep well of manufacturing experience seamlessly combined with comprehensive technical expertise and process mastery. This harmonious blend guarantees not only exceptional quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and set new standards 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 transcend industry norms by employing unmatched precision and innovation. Our commitment sets a new frontier in quality benchmarks, establishing groundbreaking standards at every stage of production.
Each raw material entering our cutting-edge facility is subjected to stringent scrutiny, raising the bar in quality assurance. Our comprehensive methodology includes detailed chemical composition evaluations and precise assessments of physical properties. We demand Certificates of Origin and verified Declarations of Conformity from our suppliers, ensuring only top-tier materials are integrated into our advanced CNC machining services. This thorough verification process protects material integrity and purity, reflecting our steadfast dedication to superior quality.
Unyielding In-Process Quality Control: Our relentless focus and meticulous scrutiny fuel our relentless pursuit of perfection with an unwavering commitment.
Throughout the intricate machining process, each component undergoes precise examination to ensure dimensions and tolerances match our exact specifications. This ongoing review is crucial for swiftly detecting and intercepting potential defects, preventing any non-conforming parts from advancing. By adhering to this diligent strategy, we substantially reduce the risk of producing subpar products, consistently maintaining exceptional quality across all production stages.
Proactive and Comprehensive First Article Inspection (FAI): This preventive framework is the foundation of flawless excellence and unparalleled precision.
Our First Article Inspection (FAI) process is the bedrock of our quality strategy, adeptly identifying and resolving potential production challenges early on. This proactive approach ensures issues are addressed before becoming larger production hurdles. Our extensive FAI process is vital to minimize quality risks, ensuring our products consistently reach the highest standards, embodying our unwavering commitment to excellence throughout each production stage.
Thorough and Detailed Final Inspection: The ultimate protector of extraordinary quality and precision.
Before any product departs our facility, it undergoes an exhaustive and detailed final inspection. This rigorous scrutiny covers dimensions, visual aesthetics, performance, and specific customer requirements. Our meticulous inspection underscores our unwavering dedication to quality, ensuring that every delivered part meets our exacting standards, providing our valued customers with products of the highest quality.
Packaging & Shipping
Company Profile
Founded in the esteemed year of 2009, tracing its lineage back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. shines as a beacon in the refined domain of high-precision component machining. Our storied journey, powered by an unwavering dedication to the intricate artistry and exacting science of engineering, spans more than two decades of unceasing innovation and masterful precision. Throughout this time, we have skillfully carved out our legacy as pioneers in precision engineering, consistently pushing the boundaries of technical research and setting new, groundbreaking standards within the industry. We have cultivated an extraordinary level of technical expertise, establishing ourselves as industry forerunners with a stellar reputation for unmatched excellence. Our unparalleled proficiency in precision medical machining services consistently achieves the most exacting tolerances, delivering impeccable surface finishes. This solidifies our standing as the foremost choice in the medical sector, where our precision and unwavering reliability continue to garner enduring trust and admiration.
With four strategically positioned production bases, in the vibrant and thriving hubs of Shenzhen and Guiyang, supported by an impressive team of over 400 highly skilled professionals, Donghui has seamlessly developed a holistic, vertically integrated industry chain that flawlessly connects research and development, superior production, and impeccable delivery. This enables us to consistently meet and exceed the diverse requirements of our clients with extraordinary efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to handle 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)