Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment extends beyond mere duty, driven by an ardent passion for the artful craft and exacting science of precision manufacturing excellence. Our unparalleled expertise acts as a beacon in the sphere of high-end component fabrication, illuminating the journey towards exquisite precision and flawless execution. We are trailblazing the innovation and production of avant-garde intelligent automation equipment, delivering visionary solutions that span a vast array of industries, seamlessly integrating into various applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and groundbreaking solutions for cutting-edge medical devices, ensuring the highest echelons of quality standards.
- Semiconductors: Augmenting chip production and its intricate equipment with essential core components that are vital to the industry's thriving success.
- New Energy: Championing the robust and sustainable evolution of innovative energy equipment, driving forward eco-friendly technological advancements.
- Automotive: Supplying integral components that propel innovation within the automotive arena, supporting the transformation of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, guaranteeing 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 capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Analysis
Every piece of raw material entering our facility is subjected to a comprehensive and rigorous evaluation. Our precise examinations cover every nuance, from chemical composition to physical properties. We are committed to excellence and require every supplier to provide a Certificate of Origin accompanied by a stamped Declaration of Conformity. This disciplined approach guarantees the selection of only the highest-grade materials for our precision medical machining services. Our stringent authentication process ensures these materials adhere to the utmost standards of purity and integrity, reflecting our unwavering dedication to quality.
Rigorous In-Process Quality Assurance
Throughout our sophisticated and precise machining processes, each component undergoes detailed scrutiny to ensure it not only meets but surpasses our stringent specifications. Our ongoing and thorough inspection protocol is meticulously crafted to detect and address potential defects at the earliest possible stage, effectively preventing non-conforming parts from advancing further. This diligent strategy is crucial for reducing the risk of subpar products, guaranteeing exceptional quality at every step of the production journey, and upholding the standard of excellence throughout.
Proactive First Article Inspection (FAI) Execution
Our First Article Inspection (FAI) protocol is a cornerstone strategy essential for pinpointing and mitigating potential production issues early. This forward-thinking approach prevents complications from arising during mass production. The thoroughness and precision of our FAI process are vital for mitigating quality risks and ensuring our products consistently reach the zenith of quality standards. This unwavering commitment to perfection infuses every segment of our production cycle, ensuring we continuously meet and outperform the highest quality thresholds.
Thorough and Final Inspection Precision
Before any product exits our premises, it is subjected to an exhaustive and detailed final inspection process. This rigorous evaluation encompasses dimensions, visual aesthetics, performance, and any specific customer requirements. Our all-encompassing inspection procedure is a testament to our relentless pursuit of quality, ensuring that every part leaving our facility aligns with our exacting standards. We are committed to delivering only the finest quality products to our esteemed customers, reinforcing our standing for reliability and excellence.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our reputation for excellence and groundbreaking 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)