Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fueled by an unwavering passion that transforms our duty into an art form, embracing the refined craft and intricate science of precision manufacturing with unparalleled dedication. Our exceptional expertise stands as a beacon of excellence in the elite domain of high-end component fabrication, guiding the journey towards sublime precision and unmatched quality. We are at the forefront of innovation, developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions expertly address a wide array of industries, ensuring comprehensive applications in sectors such as:
- Medical and Biotech: Delivering meticulously crafted high-precision components and pioneering solutions for cutting-edge medical devices, consistently meeting the highest echelon of quality standards.
- Semiconductors: Revolutionizing chip production with indispensable core components that are vital for the industry's thriving success, driving technological progress.
- New Energy: Actively propelling the sustainable and dynamic advancement of innovative energy solutions, championing advancements in eco-friendly technology.
- Automotive: Supplying essential components that inspire innovation in the automotive industry, supporting the advancement of intelligent and electric vehicles.
Main Products
- We are devoted specialists in manufacturing non-standard customized components, extensively serving industries such as medical, automation, semiconductor, and automotive, guaranteeing exceptional precision and superior quality without compromise.
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 adeptly fulfill the intricate machining needs of diverse industries with unmatched precision and swift efficiency, establishing us as leaders in the field.
- With a rich heritage spanning two decades, we harness vast production experience coupled with substantial technical and process expertise. This guarantees not only exceptional quality but also innovative foresight, firmly establishing us as trailblazers in the domain of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Each batch of raw materials that finds its way into our warehouse is subjected to a detailed and rigorous examination process. Our comprehensive analyses encompass both chemical composition evaluation and an in-depth inspection of the physical attributes. We stand by an unwavering dedication to excellence, with a requisite that every supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This meticulous vetting ensures that only superior materials are chosen for our high-precision medical machining services. Our rigorous validation process ascertains these materials are at the pinnacle of integrity and purity, perfectly mirroring our steadfast promise to quality.
Intensive In-Process Quality Assurance
Within our sophisticated and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but genuinely surpass our stringent specifications. Our unwavering and continuous inspection protocol is meticulously crafted to identify potential issues early in the process, thereby preventing non-conforming parts from advancing to later stages. This vigilant and proactive approach is crucial in reducing the risk of inferior goods, guaranteeing unparalleled quality at every phase of production, and maintaining a standard of excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process functions as a fundamental strategy essential for pinpointing and addressing potential production hurdles at an early stage. This proactive methodology averts issues from evolving into mass production impediments. The thorough and accurate nature of our FAI process is vital in mitigating quality risks, ensuring our products consistently reach the zenith of industry standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we surpass the highest quality benchmarks with every product.
Meticulous Comprehensive Final Inspection
Before any product leaves our facility, it undergoes a meticulous and exhaustive final inspection that rigorously evaluates dimensions, visual aesthetics, performance, and any bespoke customer requirements. Our thorough inspection process is a testament to our relentless commitment to quality, assuring that each part we dispatch from our facility adheres to our stringent standards. We are unwavering in delivering only the highest quality products to our valued clients, thereby upholding our distinguished reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its illustrious founding roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a beacon of mastery in the realm of high-precision basic component machining. With unyielding commitment to innovation over the past two decades, we have embarked on profound technical research, solidifying our standing as trailblazers in precision engineering. We have garnered an expansive reservoir of technical proficiency, gaining an exceptional market reputation that distinguishes us as a frontrunner in the industry. Our capabilities in precision medical machining services remain unrivaled, consistently achieving extraordinarily tight tolerances and flawless surface finishes, rendering us the quintessential choice for the medical sector.
With four strategically positioned production bases nestled within the vibrant hubs of Shenzhen and Guiyang, bolstered by a dedicated workforce of over 400 highly skilled employees, Donghui has meticulously crafted a formidable and vertically integrated industry chain. This chain seamlessly interlaces research and development, production, and delivery, ensuring we not only meet but exceed the diverse needs of our customers with unparalleled efficiency and exceptional quality. Our cutting-edge facilities are equipped to tackle the most intricate and demanding machining challenges, upholding our 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)