Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication is a masterful blend of passion and expertise, creating a symphony of art and science in precision manufacturing. Our commitment transcends responsibility, embodying our drive to achieve excellence in every endeavor. Our unparalleled expertise shines brightly in the realm of high-end component manufacturing, leading the charge toward absolute precision and unmatched quality, setting new standards of excellence. As pioneers of innovation, we lead the way in designing and producing cutting-edge intelligent automation equipment. Our forward-thinking solutions seamlessly integrate across a multitude of industries, catering to a vast array of applications and needs, including:
- Medical and Biotech: Delivering exquisitely engineered, high-precision components and state-of-the-art solutions for advanced medical devices, ensuring adherence to the most stringent quality standards.
- Semiconductors: Enhancing the field of chip manufacturing and related machinery by providing indispensable components that drive the semiconductor industry's innovative growth.
- New Energy: Contributing to the lively and sustainable evolution of cutting-edge energy equipment, promoting eco-friendly technological advancements.
- Automotive: Providing pivotal components that fuel innovation within the automotive industry, aiding the development of intelligent and electric vehicles.
Main Products
- We specialize in the meticulous crafting of non-standard customized components, serving extensively across the medical, automation, semiconductor, and automotive sectors, ensuring exceptional precision and unparalleled quality in each product.
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 unmatched precision and efficiency. We set new unparalleled benchmarks in performance and reliability, ensuring that our clients receive nothing short of excellence in every component we craft.
- With a rich history spanning two decades, we harness our vast production experience combined with substantial technical and process prowess to guarantee exceptional quality and forward-thinking innovation. This distinguishes us as true pioneers in the realm of precision engineering, consistently delivering top-tier solutions to meet the sophisticated and ever-evolving demands of our esteemed clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: Our Pledge to Unparalleled Purity and Integrity
Every raw material entering our esteemed warehouse undergoes an exhaustive examination journey, where even the minutest detail receives our unwavering attention. Our thorough analyses delve deep into the chemical and physical attributes, ensuring only the finest are accepted. Suppliers are required to furnish a Certificate of Origin and a verified Declaration of Conformity, epitomizing our relentless pursuit of excellence. Materials that achieve the pinnacle of purity and integrity are deemed fit for our precision-driven medical machining services. Our stringent authentication process acts as a steadfast guardian, unwavering in its commitment to maintaining exceptional quality at every moment.
Rigorous In-Process Quality Assurance: Acquiring Mastery in Precision at Every Phase
Within the seamless orchestration of our precision machining operations, every component is subject to detailed examination to ensure dimensions and tolerances not only meet but surpass our high expectations. Our continuous inspection protocol is a masterfully designed symphony, adept at detecting potential discrepancies at their inception, effectively preventing non-conforming parts from advancing further. This diligent approach is vital in mitigating the risk of substandard goods, upholding the superior quality at each stage of production, and ensuring our standard of excellence is unwaveringly maintained throughout the entire process.
Strategic First Article Inspection (FAI): Anticipating Perfection
Our First Article Inspection (FAI) stands as a strategic cornerstone, equipped with the foresight to detect and address potential production challenges right from the start. This proactive strategy serves as an unyielding safeguard, averting issues from escalating into large-scale production dilemmas. The exhaustive precision embodied in our FAI process is essential in minimizing quality risks, ensuring our products consistently achieve the zenith of excellence. This steadfast commitment to perfection is intricately interwoven into every phase of the production journey, guaranteeing that our standards perpetually exceed the highest quality benchmarks.
Meticulous and Comprehensive Final Inspection: The Pinnacle of Perfection
Prior to any product departing our facility, it undergoes a final inspection characterized by unmatched meticulousness and rigor. This rigorous process examines dimensions, visual appeal, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection not only stands as a testament but as a promise to our relentless quest for quality, ensuring every product leaving our premises is a beacon of our stringent standards. Our unyielding dedication to delivering only the highest quality products to our valued customers upholds our reputation for unparalleled excellence and steadfast dependability.
Packaging & Shipping
Company Profile
Since its inception in 2009, building upon its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a trailblazer in the realm of high-precision basic component machining. With an unwavering commitment to groundbreaking innovation over the past two decades, we have delved deeply into technical research, securing our position as pioneers and innovators in the field of precision engineering. Our Company has amassed an extraordinary wealth of technical expertise, cultivating a stellar market reputation that sets us apart as an undisputed industry leader. Our unmatched capabilities in precision medical machining services enable us to consistently achieve incredibly tight tolerances and impeccable surface finishes, positioning us as the premier choice in the medical sector.
With four strategically positioned production bases located in the bustling hubs of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has established a robust, vertically integrated industry chain. This chain seamlessly integrates research and development, production, and delivery, ensuring we consistently meet and exceed the diverse needs of our clients with outstanding efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to handle the most complex and challenging machining tasks, maintaining 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)