Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication transcends mere obligation. It is a harmonious interweaving of passion and exquisite craftsmanship in the sophisticated art and meticulous science of precision manufacturing. We proudly set new benchmarks and elevate industry standards with unmatched proficiency. Our exceptional expertise illuminates the path in the domain of high-end component manufacturing. We forge ahead with a commitment to unsurpassed precision and extraordinary excellence, continually redefining the benchmarks within the industry. As vanguards of innovation, we stand at the forefront of designing and fabricating pioneering intelligent automation equipment. Our cutting-edge solutions seamlessly serve a vast range of industries, addressing an expansive spectrum of applications and needs, including:
- Medical and Biotech: We offer meticulously engineered, high-precision components and groundbreaking solutions for state-of-the-art medical devices, ensuring strict adherence to the most rigorous quality standards.
- Semiconductors: We enhance chip production and associated machinery by providing critical core components that are pivotal to the rapid advancements within the semiconductor industry.
- New Energy: We are actively involved in the dynamic and sustainable progression of next-generation energy equipment, propelling eco-friendly technological innovation forward.
- Automotive: We supply essential components that invigorate innovation within the automotive sector, supporting the transition to intelligent and electric vehicles with precision and reliability.
Main Products
- We specialize in crafting bespoke, non-standard components, catering extensively to the medical, automation, semiconductor, and automotive industries. Our commitment ensures unparalleled precision and superior quality across all sectors.
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. Our cutting-edge capabilities empower us to expertly fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency. We are setting new benchmarks in performance and reliability, paving the way for innovation and excellence.
- With a rich history spanning two decades, we harness our extensive production experience, coupled with substantial technical and process expertise. This combination guarantees exceptional quality and forward-thinking innovation, marking us as true pioneers in precision engineering. We consistently deliver top-tier solutions that meet the sophisticated demands of our clients, reinforcing our reputation as industry leaders.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unmatched Incoming Material Examination: A Tribute to Supreme Purity and Integrity
Every raw material that graces our esteemed warehouse undergoes a comprehensive and scrupulous examination, where not a single detail escapes our keen observation. Our rigorous assessments delve deeply into both chemical composition and physical characteristics, ensuring only the finest are accepted. Suppliers must provide a Certificate of Origin and a stamped Declaration of Conformity-symbols of our ceaseless quest for perfection. Materials that achieve the pinnacle of purity and integrity are worthy of our high-precision medical machining services. This authentication process stands as a vigilant guardian, unwavering in its mission to uphold exceptional quality, reinforcing our pledge to deliver products of unparalleled elegance and precision.
Thorough In-Process Quality Assurance: Mastering Precision at Every Stage
Amidst the rhythmic harmony of our precise machining operations, every component is meticulously scrutinized to ensure dimensions and tolerances not only meet but exceed our ambitious standards. Our continuous inspection protocol is an expertly orchestrated symphony, skilled at identifying potential discrepancies at their earliest stages, effectively preventing any non-conforming parts from advancing further. This vigilant methodology plays a crucial role in minimizing the risk of substandard products, safeguarding the superior quality at every production phase, and ensuring our standard of excellence is consistently upheld throughout the entire production process.
Strategic First Article Inspection (FAI): Foreseeing Flawlessness with Precision
Our First Article Inspection (FAI) is a strategic pillar, imbued with foresight to identify and address potential production challenges at their inception. This proactive approach stands as an unyielding safeguard, preempting issues from developing into large-scale production dilemmas. The exhaustive and precise nature of our FAI process is essential in reducing quality risks, ensuring our products consistently achieve the height of excellence. This unwavering dedication to perfection is intricately woven into every phase of the production journey, guaranteeing our standards consistently reach the pinnacle of quality.
Meticulous Comprehensive Final Inspection: The Pinnacle of Perfection
Before any product leaves our facility, it undergoes a final inspection of unparalleled meticulousness and rigor. This stringent process examines dimensions, visual appeal, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection not only serves as proof but as a testament to our relentless pursuit of quality, ensuring every product exiting our facility exemplifies our exacting standards. Our commitment to delivering only the highest quality products to our esteemed clientele bolsters our reputation for unmatched excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Founded in 2009, yet deeply rooted in a legacy that began in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has majestically risen to become a preeminent leader in the sphere of high-precision component machining. With an unwavering commitment to pioneering innovation for over two decades, we have delved extensively into technical research, positioning ourselves as vanguards and thought leaders in the precision engineering domain. We have nurtured an exceptional depth of technical expertise, skillfully crafting an unrivaled market reputation that elevates us as the leaders of our industry. Our unmatched proficiency in precision medical machining services allows us to achieve extraordinarily tight tolerances and impeccable surface finishes with unwavering consistency, establishing us as the premier choice in the medical sector.
With four strategically positioned production bases in the vibrant and thriving cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled professionals, Donghui has meticulously crafted a robust, vertically integrated industry chain, seamlessly merging research and development, production, and delivery. This enables us to consistently meet and exceed the multifaceted demands of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are exceptionally equipped to undertake the most intricate and demanding machining tasks, perpetuating our esteemed reputation for excellence and leading-edge 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)