Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fervently dedicated to the art and science of precision manufacturing. Where cherished traditions of craftsmanship elegantly meet groundbreaking technological advances, we usher in a new dawn of unmatched excellence. Our tireless pursuit of flawlessness ensures that each masterpiece embodies exquisite artistry. By leveraging state-of-the-art technologies and steadfastly adhering to our unyielding quality standards, we set ourselves apart, delivering superbly crafted, intricately engineered components that epitomize the peak of precision and craftsmanship. With unrivaled expertise in precision engineering, we set the benchmark for component superiority. Our extraordinary agility and sophisticated precision ensure unmatched quality across every aspect of our operations, reinforcing our status as industry trailblazers and leaders. As vanguards of innovation, we redefine industry norms in the design and delivery of groundbreaking intelligent automation equipment. Our revolutionary solutions seamlessly integrate across a multitude of industries, adeptly addressing the distinct challenges of various applications, including:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components and transformative solutions lead the forefront of advanced medical technologies, establishing unprecedented standards of excellence within the field.
- SemiconductorsProviding vital, essential components, we propel advancements in chip fabrication and associated equipment, markedly enhancing efficiency and fostering innovation within the semiconductor realm.
- New EnergyWe are instrumental in the innovative and sustainable progression of next-generation energy equipment, significantly shaping the future landscape of energy solutions.
- AutomotiveDelivering key components, we spearhead innovation within the automotive sector. Our contributions drive the advancement of intelligent and electric vehicles, paving the way for the future of mobility.
Main Products
- Our expertly crafted non-standard customized components exemplify exceptional excellence. Serving pivotal sectors such as medical, automation, semiconductor, and automotive industries, we provide unparalleled precision and top-tier quality that endures the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of innovation, powered by an impressive fleet of over 300 state-of-the-art machinery units. This remarkable collection exemplifies our commitment to maintaining leadership in both innovation and adaptability. Our dedication to delivering groundbreaking solutions sets the industry standard for excellence, pushing boundaries with unparalleled precision and unmatched quality. These Top-Tier Branded Our advanced machinery is the cornerstone of our precision-centric manufacturing, providing the essential infrastructure for our rigorous production standards. With these pioneering tools, we relentlessly pursue the enhancement of our manufacturing techniques to achieve consistently superior results. Through our high-performance machines, we tactically tackle intricate and demanding machining tasks spanning various industries, ensuring unmatched precision and optimal efficiency. Our expansive capabilities uphold strict quality standards while delivering tailored customization that consistently surpasses our esteemed clients' highest expectations, achieving remarkable satisfaction.
- Celebrating a prestigious 20-year legacy, we leverage a deep reservoir of manufacturing expertise combined with advanced technical knowledge and process mastery. This powerful blend ensures not only exceptional quality but also spearheads groundbreaking innovation. We continually exceed expectations by delivering extraordinary products that 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 the dynamic and ever-evolving sphere where precision cannot be compromised, we transcend the industry's towering benchmarks, making way for a new era of innovation. Our unparalleled methodologies set a groundbreaking precedent, echoing through each phase of our production odyssey with revolutionary quality standards.
Every raw material entering our state-of-the-art warehouse embarks on a journey of stringent evaluation, setting a new benchmark in quality assurance. Through in-depth chemical composition analysis and meticulous physical property assessments, we ensure only the finest materials grace our cutting-edge medical machining services. Suppliers are mandated to provide a Certificate of Origin with a verified Declaration of Conformity, reinforcing our unwavering commitment to quality integrity and purity. This meticulous validation fortifies our resolve for superior quality, mirroring our dedication to excellence.
Uncompromising In-Process Quality Control: With an unyielding allegiance to detail and vigilance, we chase perfection with steadfast dedication. This meticulous process guarantees our standards of excellence are not just met but often surpassed, solidifying our reputation for unparalleled quality.
Throughout the complex machining process, every component goes through rigorous scrutiny to ensure dimensions and tolerances align flawlessly with our stringent specifications. This proactive inspection protocol is crucial in identifying potential defects, preventing non-conforming parts from advancing. Through this diligent approach, we significantly mitigate the risk of substandard production, ensuring exceptional quality is a constant at every stage of manufacturing.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the bedrock of immaculate excellence, illustrating unmatched precision and thoroughness with every inspection.
The First Article Inspection (FAI) is the keystone of our quality strategy, expertly preempting potential production challenges right from inception. This proactive stance ensures issues are resolved before escalating into obstacles. Our exhaustive FAI process is crucial in minimizing quality risks, ensuring our products consistently surpass the highest standards and demonstrating our relentless commitment to unparalleled excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring each product delivered is nothing short of perfection.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses assessments of dimensions, visual appeal, and performance, alongside customer-specific requirements. This thorough inspection underscores our steadfast dedication to quality, ensuring every part delivered aligns with our exacting standards, providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the illustrious year of 2009, although our roots extend back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon in the elite sphere of high-precision component machining. Our esteemed journey has been driven by an unwavering passion for the intricate art and exacting science of engineering, over more than two decades of relentless innovation and exceptional precision. We have brilliantly carved our legacy as trailblazers in precision engineering, continuously propelling technical research forward and setting groundbreaking benchmarks in the industry, consistently exceeding expectations in both innovation and unmatched quality. We have meticulously cultivated an extraordinary level of technical expertise, establishing ourselves as market leaders with a distinguished reputation for unparalleled excellence. Our proficiency in precision medical machining services is unrivaled, consistently achieving the most rigorous tolerances and delivering flawless surface finishes. This commitment confirms our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us lasting trust and respect, making us the leading name for premier machining solutions.
With four strategically situated production facilities, in the dynamic and thriving centers of Shenzhen and Guiyang, supported by an impressive team of over 400 highly qualified specialists, Donghui has masterfully crafted a comprehensive, vertically integrated industry chain. This chain seamlessly unites cutting-edge research and development, superior production, and impeccable delivery. Our operations ensure we consistently meet and exceed the diverse demands of our clients with outstanding efficiency and unmatched quality. Our state-of-the-art facilities are meticulously designed to handle the most intricate and challenging 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)