Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we proudly uphold the highest standards of excellence. Our unwavering dedication to both the art and science of precision manufacturing ensures we deliver nothing short of perfection. Our commitment to quality craftsmanship and technological prowess sets us apart, ensuring unmatched results in every component we create. Our unparalleled expertise leads the way in the realm of precision engineering. We navigate the prestigious field of superior component manufacturing with remarkable skill and refined finesse, ensuring excellence at every turn. As pioneers of innovation, we set the benchmark in designing and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions are seamlessly integrated across a broad spectrum of industries, satisfying diverse demands in numerous applications such as:
- Medical and Biotech: Providing impeccably engineered, ultra-high-precision components alongside revolutionary solutions, tailored for the forefront of advanced medical technologies.
- Semiconductors: Elevating chip fabrication and associated equipment with indispensable, critical components that drive unparalleled progress and enhanced efficiency.
- New Energy: Playing an essential role in accelerating the innovative and sustainable development of next-generation energy equipment, shaping the future of energy solutions.
- Automotive: Delivering essential components that spearhead innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components exemplify the pinnacle of excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we provide unmatched precision and superior quality that stand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by an exceptional assembly of over 300 of the industry's most advanced and sophisticated machinery units. This extensive and varied catalog of equipment ensures we remain at the cutting edge of innovation and adaptability. Through our continuous delivery of groundbreaking solutions, we set the industry standard for excellence, spearheading the way in precision and quality. These Top-Tier Branded Our state-of-the-art machinery units are the cornerstone of our precision-focused manufacturing process, providing the backbone essential to uphold our meticulous production standards. With our high-caliber machines, we masterfully execute complex and demanding machining requirements across a multitude of industries with unparalleled precision and efficiency. Our broad capabilities ensure steadfast adherence to the highest quality standards while delivering personalized customization finely crafted to meet and exceed the distinct demands of our valued clients, surpassing their highest expectations.
- With a prestigious 20-year legacy, we draw upon a rich reservoir of manufacturing experience, flawlessly integrated with vast technical expertise and process prowess. This harmonious synthesis guarantees not only superior quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that not only exceed expectations but also establish new benchmarks 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
Meticulous and Rigorous Incoming Material Inspection: As trailblazers in surpassing industry standards, we employ unmatched precision methodologies, crafting the pinnacle of quality benchmarks.
Each raw material that enters our cutting-edge warehouse is subjected to a stringent evaluation process, establishing a transformative benchmark in industry quality assurance. Our comprehensive approach includes thorough chemical composition analysis and meticulous assessment of physical properties. We demand our suppliers present a Certificate of Origin and a verified Declaration of Conformity, ensuring the use of only the highest caliber materials in our advanced medical machining services. This meticulous validation process preserves the integrity and purity of materials, perfectly aligning with our steadfast commitment to superior quality.
Unyielding In-Process Quality Control: Our unwavering vigilance and meticulous attention to detail fuel our relentless pursuit of perfection.
Throughout the intricate machining process, every component is meticulously scrutinized, ensuring dimensions and tolerances align precisely with our stringent specifications. This continuous inspection protocol is vital for proactively detecting and intercepting potential defects, preventing the advancement of any non-conforming parts. Through this diligent strategy, we significantly reduce the risk of producing subpar goods, ensuring that exceptional quality is consistently maintained across each production phase.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the bedrock of impeccable excellence and unmatched precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, proficiently identifying and resolving potential production challenges from the outset. This proactive approach ensures issues are contained before escalating into mass production obstacles. This all-encompassing FAI process is crucial in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, embodying our unwavering commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate guardian of incomparable quality and precision.
Before any product departs from our facility, it undergoes a comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This exhaustive inspection represents our unwavering dedication to quality, ensuring that every part delivered meets our stringent standards, thereby providing our esteemed customers with the highest quality products.
Packaging & Shipping
Company Profile
Founded in the stellar year of 2009, tracing back to our inception in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerges as a celebrated leader in the specialized realm of high-precision component machining. Our esteemed legacy, driven by an unyielding passion for engineering's artistry and science, spans over two decades of tireless innovation and meticulous precision. We have masterfully established our niche as trailblazers in precision engineering, consistently advancing technical research and setting unparalleled industry benchmarks. We have honed an exceptional level of technical mastery, distinguishing ourselves as market frontrunners with a revered reputation for extraordinary excellence. Our unmatched expertise in precision medical machining services rigorously meets the most exacting tolerances, producing impeccable surface finishes. This firmly establishes us as the premier choice in the medical field, where our precision and dependability continually earn unwavering trust and admiration.
With four strategically located production hubs, amidst the dynamic and prosperous regions of Shenzhen and Guiyang, bolstered by a dedicated workforce of over 400 highly skilled professionals, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain that seamlessly weaves research and development, elite production, and impeccable delivery. This ensures we consistently meet and surpass the diverse demands of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are fully equipped to tackle the most intricate and demanding machining challenges, fortifying our prestigious stature 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)