Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our passion for precision isn't just a duty-it's an exhilarating journey into the realm of manufacturing artistry and scientific innovation. We are fueled by an unwavering dedication to surpassing expectations, crafting each product as a masterpiece that reflects our steadfast devotion to quality and pioneering advancements. Our unmatched proficiency stands as a guiding light in the high-end component manufacturing landscape. We illuminate the pursuit of meticulous precision and flawless perfection, securing our position as authoritative leaders and innovators in the industry. Positioned at the frontier of technological innovation, we specialize in the development and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions are tailored to meet the diverse needs of various industries, addressing a wide array of applications, including:
- Medical and Biotech Sector: Meticulously engineering high-precision components and trailblazing solutions for state-of-the-art medical devices. We consistently uphold the highest standards of quality, excellence, and innovation.
- Semiconductors Industry: Empowering the chip production and related equipment sectors by delivering indispensable core components. These elements are vital to driving the industry's robust success, propelling progress and pioneering advancements.
- New Energy Innovations: Engaged in the vibrant and eco-conscious evolution of pioneering energy equipment, we advocate for environmentally-friendly technological innovations, fostering a commitment to a sustainable, greener future.
- Automotive Industry: Providing essential components that inspire innovation within the automotive sphere, we support the transformation and growth of smart and electric vehicles, reinforcing the industry's dynamic evolution.
Core Products
- We lead in producing custom, non-standard components with exceptional precision, extensively serving sectors such as medical, automation, semiconductor, and automotive. Each product is a testament to unrivaled quality, embodying our vision of unparalleled 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
Incomparable Material Evaluation Standards
Each piece of raw material that finds its way to our facility undergoes a scrupulously detailed examination, setting an unprecedented benchmark in precision. Our comprehensive evaluations dive deep into every facet, from analyzing chemical compositions to exhaustively inspecting physical characteristics. Our steadfast devotion to unparalleled quality is underscored by a stringent requirement that every supplier accompanies their materials with a Certificate of Origin and a stamped Declaration of Conformity. This meticulous process guarantees the selection of only the most superior materials for our high-precision medical machining services. Our thorough authentication process ensures materials of the highest integrity and purity, symbolizing our unwavering pledge to excellence and superiority.
Diligent In-Process Quality Assurance
As our complex machining operations unfold, each component is meticulously examined to ensure dimensions and tolerances not only satisfy but far surpass our demanding criteria. Our diligent inspection protocol is strategically crafted to identify potential defects at the earliest possible stages, effectively halting the progress of non-conforming parts. This vigilant methodology dramatically reduces the risk of inferior outputs, assures exceptional quality at every phase, and upholds a standard of excellence throughout the entire production journey, ensuring a flawless end product.
First Article Inspection (FAI) Driven by Strategy
Our First Article Inspection (FAI) process serves as a pivotal strategy, essential in pinpointing and resolving potential production hurdles from the very beginning. This forward-thinking approach ensures that challenges are addressed well before mass production commences. The comprehensive precision of our FAI process is instrumental in mitigating quality risks, consistently raising our products to the pinnacle of standards. Our unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we continuously surpass the highest quality benchmarks.
Thorough and Exhaustive Final Inspection
Before any product leaves our premises, it undergoes a thorough and exhaustive final inspection. This meticulous process evaluates dimensions, visual appearance, and performance, adhering to any customer-specific requirements with precision. Our comprehensive inspection regimen stands as a testament to our relentless commitment to quality, ensuring that each part leaving our facility aligns with our exacting standards. We remain steadfast in delivering only the finest products to our valued customers, consistently reinforcing our reputation for excellence and reliability.
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)