Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond the ordinary; it is fueled by an ardent passion for the artistry and the exacting science of precision manufacturing. Our unparalleled expertise acts as a beacon in the domain of high-end component fabrication, lighting the way to exceptional precision. We are trailblazers in the development and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Crafting meticulously engineered high-precision components and innovative solutions for cutting-edge medical devices, maintaining the highest quality standards.
- Semiconductors: Supporting chip manufacturing and its related equipment by delivering essential core components vital to the industry's triumph.
- New Energy: Participating in the vigorous and sustainable progression of innovative energy equipment, promoting eco-friendly technological advancement.
- Automotive: Supplying essential components that drive innovation within the automotive industry, facilitating the development of smart and electric vehicles.
Main Products
- We excel in the creation of non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, ensuring unmatched 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, which enables us to expertly tackle a broad spectrum of equipment categories. This remarkable ability empowers us to proficiently meet the complex and varied machining demands of numerous industries with a level of precision and efficiency that is simply unmatched.
- Backed by a rich history of two decades, we harness our extensive production experience, combined seamlessly with substantial technical and process expertise. This synthesis guarantees not only exceptional quality but also forward-thinking innovation, distinguishing us as leaders in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every single raw material that enters our state-of-the-art warehouse is subjected to a comprehensive, rigorous examination process, which is second to none. Our thorough analyses delve deep into the intricate details of chemical composition, coupled with an extensive inspection of physical properties. We are unwavering in our dedication to maintaining the highest quality standards by mandating that every supplier accompanies their materials with a Certificate of Origin and a stamped Declaration of Conformity. This meticulous selection process ensures that only premium materials are incorporated into our specialized high-precision medical machining services. Through our rigorous authentication procedures, we ensure these materials adhere to exceptional standards of integrity and purity, seamlessly aligning with our firm dedication to impeccable quality.
Intensive In-Process Quality Assurance
Throughout our detailed and precision-driven machining processes, every component undergoes meticulous scrutiny to ensure its dimensions and tolerances do not only fulfill but exceed our stringent specifications. Our diligent and ongoing inspection strategy is purposefully crafted to intercept potential defects at the earliest stages, thus preventing any non-conforming parts from advancing further in the production line. This vigilant method is crucial in significantly reducing the risk of inferior goods, ensuring unparalleled quality at every production phase, and maintaining rigorous excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) strategy is a cornerstone approach, pivotal for detecting and addressing potential manufacturing challenges proactively, right from the start. This forward-thinking methodology averts issues from escalating into full-scale production. The extensive and precise nature of our FAI process plays a crucial role in minimizing quality risks, ensuring that our products consistently rise to the zenith of industry standards. This unwavering commitment to excellence is integrated into every facet of our production cycle, guaranteeing not just meeting but exceeding the loftiest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product makes its journey from our facility, it undergoes a comprehensive and meticulous final inspection that is unparalleled in its thoroughness. This exhaustive process meticulously assesses dimensions, visual appeal, performance, and any customer-specific nuances. Our all-encompassing inspection regime stands as a testament to our relentless pursuit of quality, ensuring that every component leaving our premises adheres to our high standards. We are unyielding in our commitment to delivering products of the utmost quality to our esteemed customers, preserving our long-standing reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has skyrocketed to prominence as a beacon of high-precision component machining expertise. With an unwavering commitment to innovation spanning two decades, our deep dive into technical research has positioned us as trailblazers in the realm of precision engineering. We have cultivated an extraordinary wealth of technical expertise, garnering a formidable market reputation that distinguishes us as the industry vanguard. Our unrivaled capabilities in precision medical machining services consistently yield incredibly tight tolerances and flawless surface finishes, cementing our status as the medical sector's partner of choice.
With four strategically positioned production bases in the vibrant and dynamic centers of Shenzhen and Guiyang, supported by a steadfast team of over 400 highly skilled employees, Donghui has meticulously constructed a resilient and vertically integrated industry chain. This seamless integration of research and development, production, and delivery ensures we surpass the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are adept at mastering the most intricate and demanding machining challenges, reinforcing our heralded reputation for unmatched excellence and innovative breakthroughs.
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)