Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond duty; it is a passionate pursuit of the art and science of precision manufacturing. Our team is driven by a fervor that fuels our dedication to excellence, ensuring that every product we craft meets the highest standards of quality. Our unparalleled expertise is a beacon in the world of high-end component fabrication, leading the way with meticulous precision. We illuminate the industry's path with our innovative solutions and unwavering commitment to excellence. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions are designed to meet the needs of diverse industries, offering unmatched versatility and effectiveness across applications, such as:
- Medical and Biotech: We deliver precisely engineered high-precision components and cutting-edge solutions for advanced medical devices, ensuring we uphold the highest standards of quality and reliability.
- Semiconductors: We empower the semiconductor industry by providing essential core components, vital for the success of chip production and the equipment that supports it.
- New Energy: We actively participate in the sustainable advancement of innovative energy equipment, driving forward the growth of eco-friendly technological progress.
- Automotive: We supply critical components that drive innovation in the automotive industry, playing a key role in the development of smart and electric vehicles.
Main Products
- We focus on non-standard customized components, serving key sectors like medical, automation, semiconductor, and automotive industries. Our products are distinguished by unmatched precision and outstanding quality.
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 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, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Pioneering Incoming Material Inspection Excellence
Before any raw material graces our warehouse, it undergoes a comprehensive and rigorous inspection process. Our detailed evaluations encompass a meticulous analysis of the chemical composition and a thorough scrutiny of physical properties, ensuring only top-tier materials are utilized in our precision medical CNC machining services. We demand every supplier furnish a Certificate of Origin and a stamped Declaration of Conformity, solidifying our unwavering dedication to quality. This robust authentication process guarantees that materials meet stringent standards of integrity and purity, flawlessly aligning with our commitment to superior quality.
Stringent In-Process Quality Control
In our sophisticated and precise machining operations, every piece is diligently examined to ensure its dimensions and tolerances not only meet but surpass our rigorous specifications. Our strategic, ongoing inspection protocol is meticulously designed to detect potential defects early, thus preventing non-conforming components from advancing to later stages. This vigilant strategy is crucial in reducing the risk of inferior products, guaranteeing unmatched quality at each production phase, and upholding excellence throughout our entire production process.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) is a fundamental strategy, vital for early identification and resolution of potential production challenges, thus averting issues from proliferating into mass production. The meticulous and detailed nature of our FAI process is critical in mitigating quality risks, ensuring our products consistently reach the epitome of standards. This unwavering dedication to excellence permeates every facet of our production cycle, assuring we meet and exceed the loftiest quality benchmarks.
Thorough and Detailed Final Inspection
As a final step, before any product exits our facility, it is subjected to an exhaustive and meticulous final inspection. This careful process rigorously assesses dimensions, visual aesthetics, performance metrics, and any customer-specific mandates. Our detailed inspection process embodies our relentless devotion to quality, ensuring every item dispatched from our facility adheres to our exacting standards. We are committed to delivering only the finest quality products to our esteemed clientele, reinforcing our legacy of excellence and dependability.
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 innovation over the past two decades, we have delved deep into cutting-edge technical research, establishing ourselves as pioneers in the realm of precision engineering. Our relentless pursuit of greatness sets a benchmark in the industry. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector. Our commitment to excellence is reflected in every component we produce, ensuring precision and quality that stands the test of time.
With four strategically located production bases in the bustling 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 chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled 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. Every aspect of our operation is designed to deliver perfection, resonating with the highest standards of industry excellence.
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)