Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are paragons of precision manufacturing, where artistry converges with groundbreaking innovation. Our unwavering commitment to excellence ensures that each masterpiece we create is a testament to immaculate perfection. By championing quality craftsmanship and leveraging cutting-edge technology, we distinguish ourselves, delivering exceptional results with every meticulously crafted component. Our unparalleled expertise in precision engineering elevates the standards in component manufacturing. Demonstrating remarkable dexterity and sophisticated finesse, we ensure excellence in every aspect of our craft, positioning us as industry leaders. As vanguards of innovation, we establish the gold standard in crafting and delivering revolutionary intelligent automation equipment. Our state-of-the-art solutions integrate seamlessly across diverse industries, expertly addressing specific demands across a spectrum of applications, including:
- Medical and BiotechOur flawlessly engineered, ultra-high-precision components and transformative solutions are specifically tailored for the forefront of advanced medical technologies, setting new standards and benchmarks in the industry.
- SemiconductorsWe enhance chip fabrication and related equipment by delivering indispensable, critical components that drive extraordinary advancements and heightened efficiency in the semiconductor industry.
- New EnergyWe are instrumental in advancing the innovative and sustainable development of next-generation energy equipment, contributing to the future landscape of energy solutions.
- AutomotiveWe provide crucial components that fuel innovation in the automotive industry, propelling the evolution of intelligent and electric vehicles, and helping to define the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality that endure over time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are driven by an impressive fleet of over 300 of the industry's most advanced machinery units. This vast, state-of-the-art collection not only ensures our leadership in innovation and adaptability but also sets the industry's benchmark for excellence. By consistently delivering cutting-edge solutions, we perpetuate a tradition of unmatched precision and superior quality. These Top-Tier Branded Our pioneering machinery units are the bedrock of our precision-driven manufacturing process, forming an essential infrastructure that sustains our stringent production standards. Through the use of these cutting-edge tools, we continuously refine and enhance our manufacturing strategies to consistently achieve extraordinary results. By leveraging our high-caliber machines, we expertly execute complex and demanding machining requirements across multiple industries, achieving exceptional levels of precision and efficiency. Our extensive capabilities ensure unwavering adherence to the highest quality standards, providing bespoke customization that not only meets but exceeds the individual needs of our valued clients, consistently surpassing their highest expectations.
- With a distinguished 20-year legacy, we draw upon a vast reservoir of manufacturing experience seamlessly combined with extensive technical expertise and process mastery. This harmonious synergy guarantees not only exceptional quality but also groundbreaking innovation, enabling us to consistently deliver extraordinary products that exceed expectations and set new standards 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: At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend industry norms, delivering unparalleled innovation and precision. Our superior quality benchmarks lead the way, as we set revolutionary standards across every production phase.
Each raw material entering our state-of-the-art facility undergoes meticulous evaluation, establishing new quality assurance benchmarks. Our comprehensive approach includes advanced chemical composition analysis and precise physical property assessment. Suppliers are mandated to provide a Certificate of Origin alongside a verified Declaration of Conformity, ensuring only premium materials are employed in our leading-edge medical machining services. This meticulous validation process upholds the integrity of materials, perfectly aligning with our steadfast commitment to delivering superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance and meticulous attention to detail exemplify our unwavering commitment to perfection.
During the intricate machining process, each component undergoes meticulous scrutiny to ensure dimensions and tolerances align with our stringent specifications. This continuous inspection protocol is crucial in preemptively identifying and intercepting potential defects, halting the advancement of non-conforming parts. Through this diligent strategy, we significantly reduce the risk of substandard production, consistently guaranteeing exceptional quality throughout each production stage.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the cornerstone of immaculate excellence and unparalleled precision.
The First Article Inspection (FAI) process is fundamental to our quality strategy, expertly identifying and resolving potential production challenges early on. This proactive method ensures issues are addressed prior to escalating into mass production obstacles. Our comprehensive FAI process is vital in minimizing quality risks, consistently ensuring our products reach the highest standards, embodying our unwavering commitment to excellence at each production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of exceptional quality and precision.
Before any product departs our facility, it is subjected to a thorough and comprehensive final inspection. This rigorous evaluation considers dimensions, aesthetic appeal, performance, and customer-specific requirements. This meticulous inspection embodies our steadfast dedication to quality, ensuring every part delivered meets our exacting standards, providing our esteemed customers with unrivaled quality products.
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 luminary in the sophisticated realm of high-precision component machining. Our illustrious journey, fueled by a deep-seated passion for the intricate art and rigorous science of engineering, spans over two decades of relentless innovation and masterful precision. We have deftly etched our place as trailblazers in precision engineering, continuously advancing the frontiers of technical research and establishing groundbreaking benchmarks within the industry. We have meticulously nurtured an exceptional caliber of technical acumen. This positions us as market vanguards, with a sterling reputation for unparalleled excellence that extends far and wide. Our unrivaled expertise in precision medical machining services consistently meets the most exacting tolerances, delivering flawless surface finishes that cement our status as the preeminent choice in the medical sector. Here, our precision and steadfast reliability continue to earn unwavering trust and esteem from our discerning clientele.
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 strategic integration seamlessly links cutting-edge research and development, superior production, and impeccable delivery. Such synergy ensures 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 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)