Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we passionately pursue the pinnacle of precision manufacturing, where timeless craftsmanship converges with cutting-edge innovation. Our unwavering dedication to excellence ensures that each masterpiece we create radiates with flawless perfection. Through a steadfast commitment to quality craftsmanship and state-of-the-art technology, we distinguish ourselves by delivering exceptional results with every intricately crafted component. Our unparalleled expertise in precision engineering sets the benchmark for excellence in component manufacturing. We showcase remarkable agility and sophisticated finesse, guaranteeing exceptional quality in every facet of our work, establishing us as industry leaders. As trailblazers of innovation, we define the gold standard in designing and delivering revolutionary intelligent automation equipment. Our state-of-the-art solutions integrate effortlessly across a multitude of industries, skillfully addressing the unique challenges of diverse applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions are crafted for the forefront of advanced medical technologies, setting unprecedented benchmarks in the field.
- SemiconductorsWe enhance chip fabrication and related equipment by providing essential, critical components-driving extraordinary advancements and increased efficiency in the semiconductor industry.
- New EnergyWe play an instrumental role in advancing the innovative and sustainable development of next-generation energy equipment, contributing to shaping the future landscape of energy solutions.
- AutomotiveWe supply vital components that drive innovation within the automotive industry, furthering the evolution of intelligent and electric vehicles, and shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components represent the zenith of excellence. Serving pivotal sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that endure the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by a formidable fleet of over 300 top-tier machinery units, each representing the zenith of industrial innovation. This expansive and cutting-edge collection positions us at the forefront of technological advancement and adaptability. By steadfastly delivering innovative solutions, we set the standard for the industry, continually striving toward unmatched precision and exemplary quality. These Top-Tier Branded Our revolutionary machinery units embody the essence of our precision-focused manufacturing ethos. They form the pivotal backbone of our production capabilities, supporting our unwavering dedication to excellence. By harnessing these state-of-the-art tools, we continuously enhance and refine our manufacturing processes to consistently deliver outstanding quality and groundbreaking results. Utilizing our high-end machines, we expertly tackle complex and demanding machining tasks across various industries, achieving exceptional precision and unparalleled efficiency. Our extensive capabilities ensure we adhere to the strictest quality standards while offering bespoke custom solutions that not only meet but far exceed the distinctive needs of our esteemed clients, greatly surpassing their loftiest expectations.
- With an illustrious 20-year legacy, we tap into a vast reservoir of manufacturing prowess seamlessly integrated with profound technical expertise and process mastery. This exceptional synergy ensures not only outstanding quality but also groundbreaking innovation. We empower ourselves to deliver remarkable products that exceed expectations and establish new benchmarks 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 dynamic realm of innovation and precision, we don't just meet the industry's lofty expectations-we transcend them with unparalleled methodologies. We proudly set the bar for superior quality benchmarks, establishing revolutionary standards that resonate through every phase of our production journey.
Every raw material entering our state-of-the-art warehouse undergoes an exhaustive evaluation, establishing unprecedented standards in quality assurance. Our detailed approach includes comprehensive chemical composition analysis and stringent physical property assessments. Suppliers are required to provide 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 fortifies the integrity and purity of materials, aligning perfectly with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering eye for detail, we pursue perfection with steadfast dedication and commitment.
Throughout the intricate machining process, each component undergoes thorough scrutiny to ensure dimensions and tolerances match precisely with our stringent specifications. This ongoing inspection protocol is crucial for proactively identifying and intercepting potential defects, thus preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is maintained at every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventative framework stands as the foundation of impeccable excellence, embodying unmatched precision.
The First Article Inspection (FAI) process is the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach ensures issues are addressed before they can escalate into mass production impediments. Our thorough FAI process is essential in minimizing quality risks, guaranteeing our products consistently reach the pinnacle of standards and embodying our unwavering commitment to excellence across 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 covers dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection underscores our steadfast dedication to quality, ensuring every delivered part conforms to our exacting standards, thus 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)