Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by a passion for precision manufacturing excellence, where timeless craftsmanship meets cutting-edge innovation. Our commitment to perfection ensures that each work of art we produce shines with unmatched precision. Through our unwavering dedication to quality craftsmanship and advanced technology, we stand out by consistently delivering exceptional results in every meticulously crafted component. Our unrivaled expertise in precision engineering sets us apart as the benchmark for excellence in component manufacturing. We exhibit remarkable agility and exquisite finesse, ensuring outstanding quality across every dimension of our work, solidifying our position as leaders in the industry. As pioneers of innovation, we set the gold standard in the design and delivery of groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a wide range of industries, expertly addressing the unique challenges of diverse applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions are crafted at the cutting edge of advanced medical technologies, establishing new, unparalleled benchmarks in the field.
- SemiconductorsWe revolutionize chip fabrication and related equipment by providing essential, critical components that drive extraordinary advancements and enhance efficiency in the semiconductor industry.
- New EnergyWe play a pivotal role in advancing the innovative and sustainable development of next-generation energy equipment, actively contributing to shaping the future landscape of energy solutions.
- AutomotiveWe supply crucial components that fuel innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles, and reshaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize the pinnacle of excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched 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 driven by an exceptional fleet of over 300 of the industry's finest and most advanced machinery units. This impressive and cutting-edge collection positions us at the forefront of innovation and adaptability. By consistently providing groundbreaking solutions, we set a gold standard in the industry for excellence, always striving for unparalleled precision and exceptional quality. These Top-Tier Branded Our pioneering machinery units are the backbone of our precision-centric manufacturing process, forming the essential framework that sustains our unwavering production standards. By harnessing these state-of-the-art tools, we perpetually refine and enhance our manufacturing methods to consistently achieve exceptional results. Utilizing our superior machines, we masterfully execute intricate and demanding machining requirements across various industries, achieving unmatched precision and effectiveness. Our extensive capabilities guarantee steadfast compliance with the highest quality standards while offering bespoke customization that not only fulfills but surpasses the unique needs of our esteemed clients, exceeding their highest expectations.
- With an illustrious 20-year history, we draw from a vast well of manufacturing experience seamlessly intertwined with deep technical expertise and process mastery. This harmonious synergy ensures not just outstanding quality but also trailblazing 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
Exquisite and Exacting Incoming Material Inspection: In the vibrant world where innovation meets precision, we not only meet but exceed the high expectations of the industry. Our unmatched methodologies pioneer superior quality benchmarks, establishing revolutionary standards that reverberate through every phase of our production journey.
Every raw material entering our avant-garde warehouse undergoes a rigorous evaluation, setting new benchmarks in quality assurance. Our comprehensive approach encompasses detailed chemical composition analysis and exacting physical property assessments. Suppliers must present a Certificate of Origin along with a verified Declaration of Conformity, ensuring only the finest materials are selected for our cutting-edge medical machining services. This meticulous validation process upholds material integrity and purity, perfectly aligning with our steadfast commitment to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering attention to detail, we pursue perfection with steadfast dedication and commitment.
Throughout the intricate machining process, each component is meticulously scrutinized to ensure dimensions and tolerances precisely align with our stringent specifications. This continuous inspection protocol is crucial for proactively identifying and intercepting potential defects, preventing non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the foundation of immaculate excellence, embodying unrivaled precision.
The First Article Inspection (FAI) process is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the start. This anticipatory approach ensures that issues are addressed before they escalate into mass production hindrances. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, reflecting our unwavering commitment to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part meets our exacting standards, providing our esteemed customers with products of the highest caliber.
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 beacon of innovation in the sophisticated realm of high-precision component machining. Our illustrious journey, driven by an unwavering passion for the intricate art and rigorous science of engineering, spans over two decades of relentless innovation and masterful precision. We have deftly carved our place as trailblazers in precision engineering, continuously advancing the frontiers of technical research and setting groundbreaking benchmarks within the industry, consistently exceeding expectations in innovation and quality. 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 solidify 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 go-to name for high-quality machining solutions.
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. This chain seamlessly links cutting-edge research and development, superior production, and impeccable delivery. Our operations ensure 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 revered 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)