Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication is an artful symphony of passion and expertise, seamlessly woven into the fabric of precision manufacturing. We are not just following the industry's standards; we are elevating them to new heights. Our unmatched expertise is a beacon in the elite world of component creation, paving the way for flawless precision and remarkable excellence, continuously redefining the standards of the industry. As trailblazers of innovation, we are at the forefront of designing and producing revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly address the diverse needs of numerous industries, offering a broad spectrum of applications, including:
- Medical and Biotech: We provide meticulously crafted, high-precision components and pioneering solutions for state-of-the-art medical devices, guaranteeing adherence to the most stringent quality standards.
- Semiconductors: We empower chip manufacturing and related machinery with essential core components, crucial to the semiconductor industry's swift advancement.
- New Energy: We are actively driving the dynamic and eco-conscious development of next-generation energy equipment, championing sustainable technological innovation.
- Automotive: We supply key components that energize innovation in the automotive industry, bolstering the progression of intelligent and electric vehicles with precision and dependability.
Main Products
- We specialize in creating tailor-made non-standard components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and exceptional quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This outstanding capability empowers us to adeptly fulfill the intricate machining needs of diverse industries with remarkable precision and efficiency. We proudly set new benchmarks in performance and reliability, ensuring that our services are unmatched in the field.
- With a rich history that spans two decades, we harness our vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This distinctive combination sets us apart as trailblazers in the realm of precision engineering, consistently delivering top-tier solutions to meet the sophisticated and demanding requirements of our clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Testament to Unrivaled Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every raw material that enters our prestigious warehouse undergoes a meticulous evaluation, where no detail is too minor to escape our keen scrutiny. Our thorough analyses penetrate deep into the chemical and physical properties, ensuring only the finest materials earn the privilege of our acceptance. Suppliers are mandated to present a Certificate of Origin along with a stamped Declaration of Conformity-symbols of our unwavering dedication to superior quality. Only materials that epitomize the pinnacle of purity and integrity qualify for our high-precision medical machining services. This rigorous authentication process acts as a vigilant sentinel, devoted to maintaining exceptional quality and fortifying our pledge to deliver products of unparalleled refinement and precision.
Intensive In-Process Quality Assurance: Masterfully Crafting Precision at Every Stage
Within the seamless flow of our precise machining operations, each component undergoes deliberate scrutiny to ascertain that dimensions and tolerances not only meet but exceed our ambitious standards. Our continuous inspection protocol is an expertly orchestrated symphony, skilled at detecting potential discrepancies early, thus preventing any non-conforming parts from advancing further. This vigilant methodology is crucial in reducing the risk of inferior products, preserving superior quality at every production stage, and consistently ensuring our standard of excellence throughout the entire orchestration of processes.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) is a strategic pillar, imbued with foresight to identify and address potential production challenges at their inception. This proactive approach serves as an unwavering safeguard, preventing issues from maturing into mass production concerns. The thorough and precise nature of our FAI process is vital in mitigating quality risks, ensuring our products consistently achieve the pinnacle of excellence. This steadfast dedication to perfection is seamlessly integrated into every phase of the production journey, ensuring our standards consistently transcend the highest echelons of quality.
Meticulous Comprehensive Final Inspection: Embodying the Apex of Perfection
Before any product departs from our facility, it undergoes an exhaustive final inspection of exceptional meticulousness and rigor. This stringent process assesses dimensions, visual allure, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection not only stands as proof but as a testament to our relentless pursuit of quality, ensuring every product leaving our facility is a beacon of our exacting standards. Our commitment to delivering only the highest quality products to our esteemed customers bolsters our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., rooted in the solid groundwork of 2002, has risen to a prestigious position as a leader in high-precision component machining. With an unwavering commitment to revolutionary innovation for more than two decades, we have delved deeply into technical research, establishing ourselves as pioneers and visionaries in the precision engineering domain. We have cultivated an extraordinary depth of technical acumen, forging a market reputation that distinctly sets us apart as industry leaders. Our unmatched proficiency in precision medical machining services enables us to achieve exceptionally tight tolerances and impeccable surface finishes with unwavering consistency, positioning us as the premier choice in the medical sector.
With four strategically positioned production bases in the vibrant cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has cultivated a robust, vertically integrated industry chain that seamlessly merges research, development, production, and delivery. This ensures we not only meet but exceed the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to master the most intricate and demanding machining tasks, maintaining our distinguished reputation for excellence and trailblazing 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)