Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just meet obligations; we passionately embrace the art and science of precision manufacturing. Our commitment is an unwavering testament to our dedication to meticulous craftsmanship. Our peerless expertise stands as a beacon in the high-end component fabrication industry, lighting the way towards unmatched precision and excellence. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, providing innovative answers to diverse applications, such as:
- Medical and Biotech: Crafting impeccably engineered high-precision components and pioneering solutions for cutting-edge medical devices, ensuring the highest quality standards are met and upheld.
- Semiconductors: Empowering semiconductor manufacturing by delivering essential core components that are the backbone of the industry's success and advancement.
- New Energy: Actively contributing to the dynamic and sustainable development of innovative energy solutions, promoting eco-friendly technological advancements.
- Automotive: Delivering critical components that drive innovation in the automotive industry, supporting the evolution of intelligent and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, serving the medical, automation, semiconductor, and automotive sectors with precision and unparalleled quality, ensuring every product meets the highest standards.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to expertly cover an expansive array of equipment categories. This extensive capability empowers us to deftly fulfill the intricate and exacting machining needs of diverse industries with unmatched precision and remarkable efficiency.
- With a rich history spanning two decades, we leverage vast production experience, combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. These elements distinguish us as trailblazing pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Evaluation
Every piece of raw material that enters our storage undergoes an exhaustive and rigorous evaluation process. Our comprehensive analyses include meticulous assessments of the chemical composition and a thorough examination of the physical properties. Upholding an unwavering commitment to excellence, we mandate that every supplier furnish a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the finest materials are selected for our high-precision medical machining services, guaranteeing that they meet the highest standards of integrity and purity. Our rigorous verification process is a testament to our steadfast commitment to quality, ensuring materials align with our exacting standards.
Comprehensive In-Process Quality Assurance
Amidst our detailed and precise machining operations, every component undergoes meticulous scrutiny to ensure that its dimensions and tolerances not only meet but exceed our stringent specifications. Our diligent and ongoing inspection protocol is strategically designed to detect potential defects at an early stage, effectively preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial in minimizing the occurrence of substandard goods, ensuring unparalleled quality at each production phase, and maintaining superior standards throughout the entire process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a key strategic approach essential for identifying and resolving potential production challenges at the onset. This proactive strategy effectively prevents issues from escalating during mass production. The thorough and precise nature of our FAI process plays a vital role in minimizing quality risks, ensuring our products consistently achieve the pinnacle of standards. This dedication to excellence is woven into every aspect of the production cycle, ensuring we meet and exceed the highest quality benchmarks consistently.
Thorough Comprehensive Final Inspection
Before any product leaves our premises, it undergoes a meticulous and comprehensive final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any specific customer requirements to the highest degree. Our extensive inspection process is evidence of our unwavering commitment to quality, ensuring that every part dispatched from our facility aligns with our exacting standards. We remain steadfast in delivering only the highest quality products to our esteemed customers, upholding our renowned 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 emerged as an eminent bastion of unparalleled expertise in the realm of high-precision basic component machining. With unwavering dedication to relentless innovation over more than two decades, we have delved profoundly into technical research, establishing ourselves as pioneering leaders in the sphere of precision engineering. We have built an extraordinary wealth of technical expertise, fostering a stellar market reputation that distinctly sets us apart as an industry leader. Our unrivaled capabilities in precision medical machining services are nothing short of extraordinary, consistently achieving incredibly tight tolerances coupled with impeccably smooth surface finishes. This makes us the unequivocal preferred choice within the discerning medical sector.
With four strategically located production bases in the vibrant, bustling hubs of Shenzhen and Guiyang, powered by a committed workforce of over 400 skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless network intricately weaves together research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are meticulously equipped to handle the most intricate and demanding machining tasks, consistently upholding our reputation for excellence and groundbreaking 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)