Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication transcends ordinary expectations. It is a harmonious fusion of fervor and expertise, embodying both the delicate art and the exacting science of precision manufacturing. We elevate industry standards, orchestrating a revolution in the field. Our unrivaled proficiency shines as a beacon in the domain of sophisticated component production. We pave the way to flawless precision and exceptional excellence, setting new benchmarks that redefine industry standards. As trailblazers of innovation, we lead the charge in conceiving and crafting revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly address a vast spectrum of industries, catering to diverse applications and needs, which include:
- Medical and Biotech: We provide meticulously engineered, high-precision components and pioneering solutions for state-of-the-art medical devices, ensuring adherence to the most stringent quality standards.
- Semiconductors: By augmenting chip manufacturing and its machinery, we deliver indispensable core components crucial to the rapid advancement of the semiconductor sector.
- New Energy: We actively engage in the vibrant and sustainable progression of next-generation energy equipment, championing eco-friendly technological innovation.
- Automotive: We supply essential components that drive innovation in the automotive industry, supporting the progression of intelligent and electric vehicles with unparalleled precision and dependability.
Main Products
- We excel in crafting bespoke, non-standard components, extensively catering to the medical, automation, semiconductor, and automotive sectors. Our work ensures unmatched precision and superior quality, setting us apart in these industries.
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, setting new benchmarks in performance and reliability. Our ability to cater to such a diverse array of machining requirements ensures that we are not just participants but leaders in the industry, delivering solutions that exceed expectations and drive success.
- With a rich history spanning two decades, we harness our vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This sets us apart as true pioneers in the realm of precision engineering, consistently delivering top-tier solutions to meet the sophisticated demands of our clients. Our commitment to excellence and innovation ensures that each product not only meets but surpasses industry standards, reinforcing our reputation as a leader in precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Testament to Unrivaled Purity and Integrity
Upon entering our distinguished warehouse, every raw material undergoes a meticulous examination process where no detail escapes our discerning scrutiny. We perform comprehensive analyses of chemical compositions and physical attributes, ensuring that only the finest materials are accepted. Suppliers must provide a Certificate of Origin and a Declaration of Conformity, both emblematic of our relentless pursuit of excellence. Only materials reaching the pinnacle of purity and integrity are entrusted for our high-precision medical machining services. This rigorous authentication process stands as a vigilant guardian, committed to maintaining exceptional quality at every turn, reinforcing our dedication to delivering products of unmatched refinement and precision.
Intensive In-Process Quality Assurance: Crafting Precision with Mastery at Every Stage
Amidst the rhythmic flow of our precise machining operations, each component undergoes meticulous inspection to ensure dimensions and tolerances not only meet but surpass our ambitious standards. Our continuous inspection protocol is a masterfully orchestrated symphony, adeptly identifying potential discrepancies at their earliest stage, effectively preventing any non-conforming parts from advancing. This vigilant methodology is pivotal in mitigating the risk of substandard products, safeguarding superior quality at every production phase, and ensuring our standard of excellence is consistently maintained throughout the entire production process.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) is a strategic cornerstone, imbued with foresight to discern and address potential production challenges at their earliest stage. This proactive approach serves as an unwavering safeguard, preempting issues from evolving into mass production dilemmas. The exhaustive and meticulous nature of our FAI process is crucial in mitigating quality risks, ensuring our products consistently reach the pinnacle of excellence. This unwavering dedication to perfection is intricately woven into every phase of the production journey, ensuring our standards consistently transcend the highest echelons of quality.
Meticulous Comprehensive Final Inspection: Embodying the Apex of Perfection
Before any product leaves our facility, it undergoes a final inspection of unparalleled meticulousness and rigor. This stringent process evaluates dimensions, visual allure, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection is not only a testament but a commitment to our relentless pursuit of quality, ensuring every product leaving our facility is a beacon of our exacting standards. Our dedication to delivering only the highest quality products to our esteemed customers reinforces our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009 upon a solid foundation established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen to prominence as a leader in the realm of high-precision component machining. With an unwavering commitment to pioneering innovation for over 20 years, we have deeply engaged in technical research, securing our place as pioneers and thought leaders in the precision engineering industry. We have developed an extraordinary level of technical expertise, building a market reputation that sets us apart as industry leaders. Our unmatched proficiency in precision medical machining services enables us to achieve exceptionally tight tolerances and impeccable surface finishes consistently, establishing us as the preferred choice in the medical sector.
With four strategically positioned production bases in the vibrant cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has constructed a strong, vertically integrated industry chain that seamlessly merges research and development, production, and delivery. This enables us to consistently meet and surpass the diverse requirements of our clients with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to handle the most intricate and demanding machining tasks, maintaining our esteemed 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)