Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fueled by a profound fascination and commitment to the intricate artistry and meticulous science of precision manufacturing. Here, we are not merely contributors but pioneering leaders, setting unprecedented benchmarks in industry standards with every step we take. Our unrivaled expertise shines brightly in the realm of high-end component manufacturing, creating a path toward impeccable precision and extraordinary excellence, reshaping industry paradigms with each project we undertake. As pioneers of innovation, we lead the charge in designing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly serve a vast array of industries, meeting a diverse range of applications and needs, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions for cutting-edge medical devices, ensuring compliance with the industry's most stringent quality criteria.
- Semiconductors: Transforming chip manufacturing and its machinery by providing critical core components essential to the rapid evolution of the semiconductor sector.
- New Energy: Contributing to the dynamic and sustainable evolution of next-generation energy equipment, leading the charge in eco-friendly technological advancements.
- Automotive: Providing indispensable components that fuel innovation within the automotive industry, supporting the development of smart and electric vehicles with unparalleled precision and reliability.
Main Products
- We take immense pride in crafting custom non-standard components, extensively serving the medical, automation, semiconductor, and automotive industries, consistently delivering incomparable precision and superior quality in each creation.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations are a shining example of ingenuity and progress, proudly offering an exquisite array of more than 300 state-of-the-art machines. Each machine is a masterpiece of superior engineering and precision, showcasing the pinnacle of technological advancement. world-renowned precision machining toolsOur cutting-edge machinery empowers us to precisely cater to an extensive range of equipment categories. This unmatched capability enables us to skillfully fulfill the intricate machining needs across diverse industries, delivering precision and efficiency that are second to none. We are redefining excellence by setting new performance standards, revolutionizing industry norms with our unwavering reliability.
- With a proud legacy spanning two decades, we harness our vast production experience along with significant technical and process expertise. This dynamic combination ensures superior quality and a forward-thinking approach, marking us as true pioneers in precision engineering. We consistently deliver premium solutions that meet the sophisticated requirements of our clients, solidifying our status as leaders in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Peerless Scrutiny of Incoming Materials: Safeguarding Purity and Integrity
At the forefront of quality assurance, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. embarks on a journey of excellence that starts with an exhaustive examination of every raw material entering our esteemed facility. Our dedicated team of experts conducts a comprehensive analysis, leaving no detail overlooked as they meticulously evaluate both chemical and physical properties. This process ensures only the highest-quality materials, essential for crafting our precision CNC machining components, are chosen. We require suppliers to furnish a Certificate of Origin and a stamped Declaration of Conformity, underscoring our unwavering commitment to quality. Embracing only materials that epitomize purity and integrity, we uphold the rigorous standards vital to our high-precision medical machining services. This thorough verification process serves as a vigilant sentinel, steadfastly maintaining exceptional quality at every phase, further solidifying our pledge to deliver products that embody refined precision and unmatched excellence.
In-Process Quality Assurance: Mastering Precision at Every Phase
Within the seamless orchestration of our precise machining operations, each component is subjected to stringent scrutiny, ensuring that dimensions and tolerances not only meet but surpass our high standards. Our continuous inspection procedures function like a finely-tuned symphony, adeptly pinpointing any discrepancies at the earliest possible stage, thereby preventing the progression of non-conforming parts. This proactive vigilance is vital in diminishing the risks of substandard products, securing superior quality throughout every phase of production, and ensuring our standards of excellence are consistently upheld throughout the entire manufacturing process.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) serves as a strategic cornerstone, equipped with the foresight to identify and address potential production challenges from the outset. This anticipative approach acts as a steadfast protector, averting issues from escalating into extensive production concerns. The meticulous exactitude of our FAI process is instrumental in reducing quality risks, ensuring our products consistently reach the summit of excellence. This unwavering commitment to perfection is intricately woven into every step of the production journey, guaranteeing our standards consistently surpass the zenith of quality.
Comprehensive Final Inspection: Reaching the Pinnacle of Perfection
Before any product departs from our facility, it undergoes a final inspection process that exemplifies unparalleled meticulousness and rigor. This thorough evaluation carefully examines dimensions, visual aesthetics, performance, and any specialized customer requirements with impeccable precision. Our exhaustive inspection is a testament to our relentless pursuit of quality, ensuring that each product leaving our facility is a radiant example of our exacting standards. Our unwavering commitment to delivering only the highest quality products fortifies our reputation for unmatched excellence and steadfast reliability, providing our valued customers with unparalleled satisfaction.
Packaging & Shipping
Company Profile
Founded in 2009, yet boasting a rich legacy that stretches back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a luminous beacon of excellence in the sophisticated realm of high-precision component machining. For over two decades, our unwavering commitment to transformative innovation has propelled us to the forefront of technical research, solidifying our position as pioneering trailblazers and visionary leaders within the precision engineering landscape. We pride ourselves on possessing an extraordinary level of technical expertise, which has earned us a stellar reputation in the market, distinguishing us as leading luminaries in the industry. Our unparalleled proficiency in precision medical machining services enables us to achieve exceptionally tight tolerances and exquisitely flawless surface finishes consistently, reinforcing our standing as the preeminent choice for the medical sector.
With four strategically positioned production bases in the bustling, industrious cities of Shenzhen and Guiyang, supported by a dedicated workforce exceeding 400 highly skilled professionals, Donghui has masterfully developed a robust, vertically integrated industry chain that flawlessly merges research and development, production, and delivery. This ensures that we not only meet but consistently surpass the diverse needs of our clients with unmatched efficiency and superior quality. Our cutting-edge facilities are meticulously designed to tackle the most complex and challenging machining tasks, thereby sustaining our esteemed reputation for excellence and pioneering leadership.
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)