Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our mission transcends conventional obligation. It is a passionate dedication to perfecting the intricate art and science of precision manufacturing. Driven by a fervent commitment to excellence, we ensure every product stands as a beacon of our relentless pursuit of quality and groundbreaking innovation. Our unparalleled expertise illuminates the realm of high-end component fabrication, charting a path to exquisite precision and impeccable perfection, solidifying our reputation as trailblazers within the industry. Leading the vanguard in the development and production of cutting-edge intelligent automation equipment, our sophisticated solutions cater to a wide spectrum of industries. We expertly address diverse applications, including:
- Medical and Biotech Sector: Providing intricately designed high-precision components and pioneering solutions for cutting-edge medical devices. We ensure strict adherence to the pinnacle of quality standards and innovative thought.
- Semiconductors Industry: Enhancing the chip production landscape and its supportive machinery by supplying pivotal core components vital for the thriving success of the industry, propelling advancement and innovation.
- New Energy Innovations: Contributing to the vibrant and sustainable advancement of revolutionary energy equipment. We lead the charge in eco-conscious technological evolution, committed to forging a sustainable future.
- Automotive Industry: Delivering critical components that drive innovation within the automotive realm, supporting the progression of smart and electric vehicles, and fostering growth and transformation across the sector.
Core Products
- We excel in the creation of bespoke non-standard components, extensively serving sectors such as medical, automation, semiconductor, and automotive. We promise unmatched precision and exceptional quality in every product, encapsulating our commitment to excellence.
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 unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with a level of precision and efficiency that is truly unmatched. Our fleet's versatility and exceptional capability ensure that no machining challenge is too daunting, making us the go-to solution for industries seeking excellence.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This ensures not only exceptional quality but also innovative thinking, setting us apart as pioneering leaders in the realm of precision engineering. Our commitment to quality and innovation has solidified our reputation as an industry vanguard.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unrivaled Assessment of Incoming Materials
Every raw material that enters our Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. warehouse is subject to a stringent and thorough evaluation process, redefining industry standards in precision and diligence. Our exhaustive analysis covers every conceivable aspect, from the intricate examination of chemical compositions to a detailed scrutiny of physical attributes. We are unwavering in our devotion to unmatched quality, insisting that every supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This rigorous requirement guarantees that only the most exceptional materials are selected for our high-precision medical machining services. Our rigorous validation process ensures materials of supreme integrity and purity, perfectly embodying our relentless pursuit of excellence and superiority.
Meticulous Quality Assurance During the Process
Throughout our sophisticated machining operations, each component is subjected to an intense evaluation process to ensure dimensions and tolerances not merely meet but exceed our exacting specifications. Our carefully crafted inspection protocol is designed to identify potential defects at the earliest opportunity, effectively halting non-conforming parts from progressing further in the production line. This vigilant strategy significantly reduces the risk of inferior outputs, guaranteeing unparalleled quality at every phase and maintaining excellence throughout the entire production journey.
First Article Inspection (FAI) with Strategic Precision
Our First Article Inspection (FAI) process is an essential strategy, pivotal in detecting and resolving potential manufacturing issues from the very beginning. This foresighted approach ensures problems are tackled far before they impact mass production. The thorough precision of our FAI process plays a crucial role in mitigating quality risks, consistently elevating our products to pinnacle standards. Our steadfast commitment to excellence imbues every facet of the production cycle, ensuring we always exceed the most demanding quality benchmarks.
Thorough and Comprehensive Final Quality Inspection
Before any component is dispatched from our facility, it undergoes a rigorous and comprehensive final examination. This meticulous process assesses dimensions, visual aesthetics, functionality, and adheres stringently to any customer-specific requirements. Our exhaustive inspection regime is a testament to our relentless dedication to quality, ensuring that every part leaving our facility seamlessly meets our stringent standards. We remain steadfast in our commitment to delivering only the finest products to our esteemed clientele, continuously upholding our reputation for excellence and dependability.
Packaging & Shipping
Company Profile
Since its vibrant inception in 2009, and with roots deeply embedded since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a luminary in the domain of high-precision component machining. With an unwavering dedication to pioneering innovation over the past two decades, we have immersed ourselves in advanced technical research, establishing a legacy as true trailblazers in precision engineering. At Donghui, we have cultivated an extraordinary reservoir of technical acumen, earning a stellar market reputation that distinctly positions us as an industry leader. Our unparalleled proficiency in precision medical machining services consistently delivers incredibly tight tolerances and impeccably flawless surface finishes, making us the preferred partner in the exacting medical sector.
With an impressive array of resources, we proudly operate four strategically located production bases, thriving within the energetic and bustling centers of Shenzhen and Guiyang, supported by our devoted and skilled workforce of over 400 highly trained employees. Donghui has meticulously developed a robust and vertically integrated industry chain. This seamless network expertly intertwines research and development, production, and delivery, ensuring that we not only meet but consistently surpass the diverse needs and expectations of our esteemed customers with exceptional efficiency and unmatched quality. Our cutting-edge facilities are exquisitely equipped to tackle the most complex and demanding machining tasks, consistently upholding our reputation for excellence and innovative breakthroughs.
Captivating 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)