Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we passionately embrace the fusion of tradition and innovation in precision manufacturing. By blending time-honored craftsmanship with cutting-edge technology, we usher in a new realm of excellence. Our relentless quest for perfection transforms each creation into an embodiment of flawless artistry. Through our steadfast commitment to delivering superior quality alongside the latest advancements, we distinguish ourselves, offering intricately crafted components that epitomize the pinnacle of precision. With unparalleled expertise in precision engineering, we define the gold standard of component excellence. Our remarkable agility and sophisticated finesse ensure that superior quality is inherent in every aspect of our operations, solidifying our reputation as industry pioneers and leaders. As trailblazers in innovation, we elevate the standards of designing and delivering groundbreaking intelligent automation equipment. Our avant-garde solutions seamlessly integrate into numerous industries, adeptly navigating the unique challenges of varied applications, including:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components and transformative solutions lead the forefront of advanced medical technologies, setting unprecedented standards of excellence in the field.
- SemiconductorsBy delivering indispensable, critical components, we fuel the advancement of chip fabrication and associated equipment, driving significant progress and enhancing efficiency in the semiconductor industry.
- New EnergyWe are instrumental contributors to the innovative and sustainable evolution of next-generation energy equipment, playing a pivotal role in defining the future landscape of energy solutions.
- AutomotiveSupplying crucial components, we are at the vanguard of innovation within 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 essential sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that stand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: The Pinnacle of Industrial Mastery Our operations are fueled by an extraordinary fleet encompassing over 300 of the industry's finest, state-of-the-art machinery units. This expansive, technologically advanced collection ensures our dominance in both innovation and adaptability. By consistently delivering groundbreaking solutions, we establish ourselves as the industry's benchmark for excellence, continuously striving toward unmatched precision and unparalleled quality. Top-Tier Branded Machinery: The Cornerstone of Precision At the core of our precision-driven manufacturing process lies our pioneering machinery units, forming the backbone of our commitment to unwavering production standards. Leveraging these state-of-the-art tools, we continuously refine and elevate our manufacturing methods, achieving consistently outstanding results. With our high-caliber machinery, we execute complex and demanding machining tasks across a broad spectrum of industries with unparalleled precision and efficiency. Our extensive capabilities ensure strict adherence to the highest quality standards while offering bespoke customization, consistently exceeding the unique needs of our valued clients and surpassing even their loftiest aspirations.
- Celebrating a distinguished 20-year legacy, we draw upon a rich reservoir of manufacturing experience intricately woven with deep technical expertise and mastery of processes. This harmonious synergy ensures not only outstanding quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that surpass expectations and set new industry benchmarks for excellence.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unrivaled Quality
High-Precision Inspection Equipment: Guaranteeing Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: Within the dynamic landscape of innovation and precision, we don't just meet industry standards - we elevate them with unmatched methodologies. We set the stage for superior quality benchmarks, revolutionizing standards that resonate across our entire production journey, creating a ripple effect of excellence.
Every raw material entering our state-of-the-art warehouse undergoes exhaustive evaluation, setting the gold standard in quality assurance. Our holistic approach includes meticulous chemical composition analysis and rigorous physical property assessments. Suppliers must provide a Certificate of Origin and a verified Declaration of Conformity, ensuring only the finest materials are utilized in our advanced medical machining services. This meticulous validation strengthens the integrity and purity of our materials, harmoniously aligning with our steadfast commitment to superior quality.
Unyielding In-Process Quality Control: With relentless vigilance and an unwavering attention to detail, we pursue perfection with dedicated commitment. This rigorous process guarantees our standards of excellence are not only met but consistently exceeded.
Throughout the intricate machining process, each component is scrutinized to ensure dimensions and tolerances align with our stringent specifications. This continual inspection protocol is vital for identifying and intercepting potential defects, preventing non-conforming parts from advancing. Our diligent strategy significantly mitigates the risk of producing substandard goods, ensuring exceptional quality is consistently maintained at every production phase.
Proactive and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, exemplifying unmatched precision and thoroughness.
The First Article Inspection (FAI) process is the bedrock of our quality strategy, skillfully identifying and resolving potential production challenges before they escalate into larger impediments. This proactive approach is essential in minimizing quality risks, ensuring our products consistently achieve the highest standards, embodying our unwavering dedication to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring the delivery of perfection.
Before any product leaves our facility, it undergoes meticulous and detailed comprehensive final inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our steadfast dedication to quality, ensuring every delivered part meets our exacting standards, providing our esteemed customers with products of the utmost caliber.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with roots deeply entrenched since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerges as a beacon in the realm of high-precision component machining. Our remarkable journey is propelled by an unwavering passion for the intricate art and rigorous science of engineering, spanning over two decades of relentless innovation and exceptional precision. We have boldly inscribed our legacy as trailblazers in precision engineering, incessantly advancing technological research and setting groundbreaking industry standards, consistently surpassing expectations with our pioneering innovation and unmatched quality. We have expertly cultivated an exceptional level of technical mastery, establishing ourselves as industry leaders with a renowned reputation for unsurpassed excellence. Our proficiency in precision medical machining services is unparalleled, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This dedication solidifies our position as the preferred partner in the medical sector. Our precision and steadfast reliability have garnered us lasting trust and esteem, positioning us as the foremost authority for superior machining solutions.
With four strategically located production facilities, in the dynamic and thriving centers of Shenzhen and Guiyang, bolstered by an impressive team exceeding 400 highly skilled specialists, Donghui has meticulously developed a comprehensive, vertically integrated industry chain. This chain flawlessly links cutting-edge research and development, exceptional production, and impeccable delivery. Our operations ensure we continually meet and exceed the diverse requirements of our clients with unparalleled efficiency and distinct quality. Our state-of-the-art facilities are precisely crafted to undertake the most intricate and demanding machining tasks, reinforcing our esteemed reputation for excellence and groundbreaking 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)