Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we elevate our commitment beyond mere duty; it is fueled by an ardent passion for the fine art and exacting science of precision manufacturing. Our unrivaled proficiency acts as a beacon in the sphere of high-end component fabrication, lighting the way to unparalleled precision. We stand at the forefront of innovation, advancing the creation and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions span numerous industries, expertly catering to varied applications, including:
- Medical and Biotech: Crafting meticulously engineered, high-precision components and pioneering solutions for cutting-edge medical devices, consistently maintaining the highest quality benchmarks.
- Semiconductors: Bolstering chip production and its ancillary equipment by providing essential core components vital to the industry's triumph.
- New Energy: Actively contributing to the robust and eco-friendly advancement of pioneering energy equipment, championing sustainable technological progression.
- Automotive: Supplying critical components that drive innovation within the automotive industry, supporting the advancement of smart and electric vehicles.
Main Products
- We are experts in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unrivaled 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
Exemplary Incoming Material Examination: Uncompromising Quality Control
Each raw material arriving at our warehouse is subject to a rigorous and comprehensive examination that ensures only the highest quality materials are used in our operations. Our exhaustive analyses involve detailed assessments of both chemical composition and physical properties. We demand that every supplier provides a Certificate of Origin accompanied by a stamped Declaration of Conformity, cementing our unyielding commitment to exceptional quality. This stringent authentication process ensures our selection of premium materials that meet the pinnacle of integrity and purity, aligning seamlessly with our unwavering dedication to quality in our high-precision medical machining services.
Intensive In-Process Quality Assurance: Elevating Standards Through Vigilance
During our intricate machining operations, every single component is subjected to precise scrutiny to verify that its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and uninterrupted inspection protocols are strategically engineered to detect and address potential defects at the earliest possible stage. This proactive approach is crucial in minimizing the occurrence of non-conforming parts, thereby maintaining superior quality throughout each phase of production. Our vigilant methodology ensures excellence in every aspect of our processes, guaranteeing our reputation for outstanding quality.
Strategic First Article Inspection (FAI): Proactive Excellence in Quality Assurance
Our First Article Inspection (FAI) process is a cornerstone of our strategy to identify and resolve production challenges at their inception, preventing issues from impacting mass production. This forward-thinking strategy is vital in reducing quality risks, ensuring that our products consistently meet the highest standards. Our meticulous FAI process reflects our dedication to excellence, permeating every phase of production and securing our commitment to surpassing quality benchmarks.
Meticulous Comprehensive Final Inspection: Guaranteeing Perfection
Before any product exits our facility, it undergoes a meticulous and exhaustive final inspection process. This critical evaluation rigorously assesses dimensions, visual appeal, performance, and any specific customer requirements. Our all-encompassing inspection protocol underscores our relentless commitment to quality, ensuring that each part dispatched from our facility adheres to our precise standards. Our steadfast dedication to delivering only the highest quality products fortifies our reputation for excellence and reliability among our esteemed customers.
Packaging & Shipping
Company Profile
Since its inception in 2009, blossoming from its foundational roots laid in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has established itself as a beacon of excellence in high-precision component machining. Our relentless dedication to innovation over the last two decades has driven us to delve deeply into technical research, positioning us at the forefront of precision engineering. Our journey is a testament to our expertise, crafting a legacy of cutting-edge solutions that redefine precision. We have garnered an extensive reservoir of technical expertise, earning us a prestigious market reputation that distinguishes us as a trailblazer in the industry. Our unmatched capabilities in precision medical machining services consistently deliver exceptionally tight tolerances and flawless surface finishes, solidifying our status as the premier choice in the medical sector for those who demand the utmost in quality and precision.
With four strategically located production bases in the thriving centers of Shenzhen and Guiyang, supported by a dedicated team of more than 400 highly skilled professionals, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamlessly interconnects research and development, production, and delivery, ensuring that we not only meet but consistently exceed the diverse needs of our customers with unparalleled efficiency and superior quality. Our cutting-edge facilities are fully equipped to manage the most intricate and demanding machining tasks, sustaining our esteemed 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)