Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication goes beyond the call of duty; it is fueled by an intense passion for the artful craftsmanship and precise science of advanced manufacturing. Our unrivaled expertise stands as a beacon in the world of elite component fabrication, shining a light on the quest for impeccable precision. Leading the charge in the evolution and manufacture of revolutionary intelligent automation equipment, we offer trailblazing solutions that meet the needs of numerous industries. Our innovative technologies adeptly support a diverse array of applications, including:
- Medical and Biotech: Crafting meticulously engineered, high-precision components and groundbreaking solutions for cutting-edge medical devices, we maintain the highest echelons of quality standards.
- Semiconductors: Bolstering chip production and its related equipment by providing essential core components that are vital for the industry's thriving success.
- New Energy: Championing the dynamic and sustainable progression of pioneering energy equipment, propelling eco-conscious technological advancements.
- Automotive: Delivering 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 supporting the medical, automation, semiconductor, and automotive sectors with unparalleled precision and exceptional quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, empowering us to skillfully address a comprehensive spectrum of equipment categories. This capability allows us to masterfully fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency.
- With an illustrious history spanning two decades, we harness vast production experience alongside substantial technical and process prowess. This guarantees not only exceptional quality but also forward-thinking innovation, distinguishing us as trailblazers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Outstanding Incoming Material Evaluation
Every raw material that graces our warehouse undergoes an exhaustive and rigorous examination process. We conduct meticulous analyses, evaluating chemical composition and conducting a thorough inspection of the physical properties. Our unwavering commitment to quality requires every supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. This diligent protocol ensures only the finest materials are selected for our high-precision medical machining services. Our rigorous authentication process guarantees these materials meet the highest standards of integrity and purity, perfectly aligning with our steadfast commitment to excellence.
Rigorous In-Process Quality Assurance
Within our intricate and precise machining operations, each component is subjected to meticulous scrutiny to ensure its dimensions and tolerances not only meet but exceed our exacting specifications. Our diligent and continuous inspection protocol is strategically designed to intercept potential defects early on, thereby preventing non-conforming parts from progressing to subsequent stages. This vigilant approach is pivotal in minimizing the risk of substandard goods, ensuring superior quality at every phase of production, and maintaining excellence throughout the entire process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process acts as a cornerstone strategy crucial for identifying and resolving potential production challenges at an early stage. This proactive stance prevents issues from escalating into mass production. The comprehensive and precise nature of our FAI process is essential in minimizing quality risks, ensuring our products consistently ascend to the pinnacle of standards. This unwavering dedication to excellence permeates every aspect of the production cycle, guaranteeing that we meet and exceed the highest quality benchmarks.
Thorough and Comprehensive Final Inspection
Before any product leaves our facility, it undergoes a meticulous and thorough final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are steadfast in delivering only the highest quality products to our valued customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, with its foundational roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has magnificently risen to prominence as a bastion of expertise in the realm of high-precision basic component machining. With an unwavering commitment to pioneering innovation over the past two decades, we have immersed ourselves deeply in technical research, establishing a celebrated reputation as trailblazers in precision engineering. We have cultivated an impressive reservoir of technical expertise that has earned us an outstanding market reputation, distinguishing us as an industry leader. Our unrivaled capabilities in precision medical machining services consistently exceed the highest standards, flawlessly achieving incredibly tight tolerances and impeccable surface finishes, cementing our position as the preferred choice within the medical sector.
With four strategically located production bases in the dynamic heartlands of Shenzhen and Guiyang, bolstered by a devoted workforce comprising over 400 skilled employees, Donghui has meticulously constructed a robust and vertically integrated industry chain. This seamless chain adeptly intertwines research and development, production, and delivery, ensuring we not only meet but consistently exceed the varied needs of our clientele with unparalleled efficiency and exceptional quality. Our cutting-edge facilities are expertly equipped to undertake the most intricate and demanding machining tasks, perpetuating our legacy of 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)