Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment extends far beyond mere duty; it is inspired by an ardent passion for the artful craft and the meticulous science of precision manufacturing. Our unparalleled expertise shines as a beacon in the sophisticated realm of high-end component fabrication, illuminating every step towards immaculate precision and craftsmanship. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our avant-garde solutions serve a vast array of industries, efficiently addressing various applications, including:
- Medical and Biotech: Delivering masterfully engineered high-precision components and groundbreaking solutions for cutting-edge medical devices, while upholding the zenith of quality standards.
- Semiconductors: Enhancing chip production and its associated equipment by providing essential core components that are pivotal to the industry's triumphant progress.
- New Energy: Playing a dynamic role in the sustainable and vigorous progression of innovative energy equipment, championing eco-friendly technological advancements.
- Automotive: Supplying crucial components that drive innovation within the automotive sector, facilitating the advancement of smart and electric vehicles.
Main Products
- We are specialists in non-standard customized components, broadly serving the medical, automation, semiconductor, and automotive industries, guaranteeing unmatched 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, 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.
- Boasting a rich legacy of two decades, we seamlessly leverage our vast production experience alongside our substantial technical and process prowess. This ensures the delivery of exceptional quality and groundbreaking innovation, distinguishing us as true pioneers in the illustrious realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every raw material that graces our warehouse is subjected to an exhaustive and precise evaluation process. Our thorough analyses encompass a detailed examination of the chemical composition and an intricate inspection of the material's physical attributes. We maintain an unwavering allegiance to quality by mandating each supplier to furnish a Certificate of Origin along with a verified Declaration of Conformity. This ensures that solely the best materials are chosen for our high-precision medical machining services. Our stringent authentication process decisively guarantees that these materials embody the highest standards of integrity and purity, seamlessly aligning with our enduring devotion to superior quality.
Intensive In-Process Quality Assurance
Amidst our intricate and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and continuous inspection protocol is strategically crafted to detect potential defects at the earliest stages, effectively preventing non-conforming parts from advancing to further stages. This vigilant approach is crucial in reducing the risk of substandard goods, ensuring unrivaled quality at each phase of production, and sustaining unparalleled excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy, vital for identifying and resolving potential production challenges at their inception. This proactive method effectively prevents issues from magnifying into mass production. The thorough and accurate nature of our FAI process is indispensable in mitigating quality risks, ensuring our products consistently rise to the apex of standards. This unwavering dedication to excellence infiltrates every facet of the production cycle, guaranteeing that we consistently meet and surpass the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product leaves our facility, it undergoes a scrupulous and comprehensive final inspection. This process rigorously assesses dimensions, visual aesthetics, performance, and any customer-specific requirements. Our all-encompassing inspection process stands as a testament to our relentless dedication to quality, ensuring that every part dispatched from our facility adheres to our stringent standards. We are resolute in delivering only the highest quality products to our esteemed customers, upholding our distinguished reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its origin in the dynamic year of 2009, following its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has become a towering beacon of mastery in high-precision component machining. With unwavering dedication and relentless innovation over two remarkable decades, we have embarked on a deep technical exploration, leading the way as pioneers in the realm of precision engineering. We have cultivated an incredible reservoir of technical expertise, earning an exceptional market reputation that distinguishes us as trailblazers in the industry. Our prowess in precision medical machining services is unparalleled, consistently achieving remarkably tight tolerances and flawless surface finishes. This precision and excellence make us the preferred partner of choice within the medical sector.
With four strategically positioned production bases in the bustling centers of Shenzhen and Guiyang, powered by a dedicated team exceeding 400 skilled professionals, Donghui has meticulously crafted a robust, vertically integrated industry chain. This seamlessly integrates research, development, production, and delivery, ensuring we meet and surpass the diverse needs of our esteemed customers with remarkable efficiency and unmatched quality. Our cutting-edge facilities are equipped to tackle the most intricate and demanding machining tasks, upholding 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)