OEM customized CNC machining/turning/lathing services for Medical Devices with Precision Tolerance Ranges Non standard hardware accessories for Swiss-type lathe
Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond duty; it is fueled by a profound passion for the art and science of precision manufacturing, showcasing our dedication to excellence. Our unrivaled expertise acts as a beacon in the world of high-end component fabrication, guiding the journey towards unparalleled precision and excellence. We are at the forefront of developing and producing pioneering intelligent automation equipment. Our state-of-the-art solutions cater to diverse industries, adeptly addressing a wide array of applications, including:
- Medical and Biotech: Providing meticulously engineered, high-precision components and innovative solutions that are integral to cutting-edge medical devices, constantly upholding the highest quality standards.
- Semiconductors: Revolutionizing chip production and its related equipment by delivering essential core components, vital for the industry's triumph and growth.
- New Energy: Spearheading the dynamic and sustainable development of forward-thinking energy equipment, propelling eco-friendly technological advancements.
- Automotive: Supplying critical components that drive innovation within the automotive industry, supporting the evolution of intelligent and electric vehicles.
Main Products
- We excel in non-standard, customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, ensuring precision and premium quality that is second to none.
Why choose us
https://donghuiprecision.en.made-in-china.com/contact-info.html
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 machining needs of diverse industries with unparalleled precision and 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, which set us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional & Rigorous Incoming Material Inspection
Every raw material that graces our warehouse entrance is subjected to a comprehensive and scrupulous examination process. Our exacting analyses encompass a detailed evaluation of both the chemical makeup and the meticulous inspection of the physical attributes. We are unwavering in our commitment to excellence, requiring each supplier to furnish a Certificate of Origin and a duly stamped Declaration of Conformity. This ensures that only the crème de la crème of materials are chosen for our high-precision medical machining services. Our rigorous verification process assures that these materials adhere to the pinnacle of integrity and purity, flawlessly aligning with our steadfast dedication to superior quality.
Uncompromising In-Process Quality Assurance
Within our complex and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our rigorous standards. Our vigilant and ongoing inspection protocol is strategically crafted to detect potential issues early, preventing non-conforming parts from advancing to subsequent production stages. This vigilant methodology is crucial in minimizing the risk of substandard goods, assuring exceptional quality at every production phase, and maintaining a standard of excellence throughout the entire process.
Strategic & Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a foundational strategy, essential for identifying and addressing prospective production challenges at an early stage. This proactive technique prevents issues from magnifying into mass production. The thorough and precise nature of our FAI process is instrumental in minimizing quality risks, ensuring our products consistently rise to the summit of standards. This unwavering dedication to excellence infiltrates every segment of the production cycle, assuring that we not only meet but exceed the highest quality benchmarks.
Thorough & Meticulous Comprehensive Final Inspection
Before any product departs from our facility, it is subjected to a meticulous and thorough final inspection. This process rigorously assesses dimensions, visual appeal, performance, and any specific customer requirements. Our comprehensive inspection process is a testament to our unwavering commitment to quality, ensuring every part leaving our facility adheres to our exacting standards. We steadfastly deliver only the highest caliber of products to our esteemed customers, upholding our longstanding 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 a bastion of unparalleled expertise in high-precision basic component machining. With an unwavering dedication to breakthrough innovation over the past two decades, we have delved deep into pioneering technical research, establishing ourselves as both leaders and trailblazers within the precision engineering realm. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a distinguished leader in the industry. Our unmatched capabilities in precision medical machining services are renowned for consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the demanding and exacting medical sector.
With four strategically located production bases, in the bustling industrial hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This seamless chain effortlessly weaves together cutting-edge research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our customers with outstanding efficiency and unequaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining 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)
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