Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend traditional manufacturing with an unwavering commitment that harmonizes passion and expertise. Our mastery in precision production sets industry standards, redefining the art and science of our field. Our unrivaled expertise shines brightly in the high-end component manufacturing domain, carving a path to unmatched precision and extraordinary excellence. We are not just meeting industry benchmarks; we are setting new ones. As pioneers of innovation, we lead the charge in crafting and delivering groundbreaking intelligent automation solutions. These state-of-the-art offerings seamlessly cater to diverse industries, fulfilling an expansive spectrum of applications and requirements, including:
- Medical and Biotech: Our meticulously engineered, high-precision components and innovative solutions are at the heart of cutting-edge medical devices, ensuring they meet the highest quality standards with unmatched precision.
- Semiconductors: We enhance chip manufacturing and related machinery by supplying indispensable core components that drive the semiconductor industry's rapid evolution and growth.
- New Energy: We are key players in the sustainable development of next-generation energy equipment, promoting eco-friendly technological innovations that shape the future.
- Automotive: We deliver essential components that fuel innovation in the automotive sector, bolstering the advancement of smart and electric vehicles with precision and dependability.
Main Products
- We specialize in crafting bespoke non-standard components tailored for the medical, automation, semiconductor, and automotive industries, each piece crafted with unparalleled precision and top-tier 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 and diverse machining needs of industries worldwide with precision and efficiency. Setting new benchmarks in both performance and reliability, our services ensure that each product meets the highest standards of quality.
- With a rich history spanning two decades, we leverage our extensive production experience along with substantial technical and process expertise to ensure exceptional quality and forward-thinking innovation. Our commitment to excellence sets us apart as true pioneers in precision engineering, consistently delivering superior solutions to meet the sophisticated demands of our clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Precision in Incoming Material Examination: A Hallmark of Immaculate Purity and Integrity
Within the prestigious confines of our distinguished warehouse, each raw material embarks on an exhaustive and meticulous journey of examination, where even the slightest detail is scrupulously scrutinized. Our rigorous analyses delve deep into the essence of chemical compositions and physical attributes, allowing only the finest materials to grace our premises. Suppliers are mandated to submit a Certificate of Origin and a stamped Declaration of Conformity, symbols of our unwavering quest for quality. Only materials that epitomize purity and integrity are deemed worthy of our high-precision medical machining services. This rigorous certification process remains a vigilant guardian, steadfastly ensuring exceptional quality at every stage, fortifying our promise to deliver products of unparalleled refinement and precision.
Dynamic In-Process Quality Assurance: Mastering Precision at Every Turn
Within the synchronized rhythm of our precise machining operations, every component undergoes thorough scrutiny, ensuring dimensions and tolerances not just meet but exceed our stringent benchmarks. Our continuous inspection protocol is a meticulously orchestrated masterpiece, adept at detecting potential discrepancies at their inception and preventing non-conforming parts from advancing further. This vigilant methodology is key to reducing the risk of inferior products, safeguarding superior quality at every production phase, and maintaining our unwavering standard of excellence throughout the entire production process.
Strategic First Article Inspection (FAI): Ensuring Flawless Precision from the Outset
Our First Article Inspection (FAI) stands as a strategic pillar, imbued with foresight to preemptively identify and address potential production challenges at their inception. This proactive approach acts as an unfaltering safeguard, preventing issues from escalating into large-scale production problems. The detailed and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently achieve the pinnacle of excellence. This steadfast commitment to perfection is intricately woven throughout every phase of production, ensuring our standards consistently transcend the highest levels of quality.
Thorough Final Inspection: The Epitome of Perfection Embodied
Prior to any product leaving our facility, it undergoes a final inspection of unparalleled meticulousness and rigor. This stringent process examines dimensions, visual allure, performance, and any customer-specific requirements with exceptional precision. Our comprehensive inspection is not only a testament to our relentless pursuit of quality but also a commitment, ensuring every product leaving our premises embodies our exacting standards. Our dedication to delivering only the highest quality products to our esteemed clientele fortifies our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in the vibrant year of 2009, yet with roots extending back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has rapidly ascended the ranks to earn its esteemed position as a torchbearer in the realm of high-precision component machining. Guided by an unyielding commitment to innovation that has persevered for over two decades, we have carved out a niche as avant-garde innovators and thought leaders within the precision engineering domain. We boast an extraordinary reservoir of technical prowess, sculpting a market reputation that sets us apart as industry trailblazers. Our unmatched proficiency in precision medical machining services empowers us to consistently deliver products with exceedingly tight tolerances and impeccable surface finishes, firmly establishing us as the premier choice for the medical sector.
With four strategically located production bases, nestled in the thriving metropolises of Shenzhen and Guiyang, and supported by a dedicated team exceeding 400 highly skilled professionals, Donghui has crafted a formidable, vertically integrated industry chain that seamlessly unifies research and development, production, and delivery. This assures our ability to meet and consistently surpass the diverse demands of our clients with extraordinary efficiency and unparalleled quality. Our cutting-edge facilities are meticulously designed to tackle the most intricate and challenging machining tasks, thereby upholding our distinguished reputation for excellence and innovative pioneering.
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)