Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by more than just obligation; our journey intertwines passion with expertise in the intricate artistry and meticulous science of precision manufacturing. Here, we are not just participants but leaders, setting new heights in industry standards. Our unmatched expertise illuminates the path in the domain of high-end component manufacturing, paving the way for flawless precision and extraordinary excellence, reshaping industry benchmarks with every endeavor. As trailblazers in innovation, we are at the forefront of designing and producing revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly serve an extensive variety of industries, catering to a broad spectrum of applications and requirements, including:
- Medical and Biotech: Providing meticulously crafted, high-precision components and innovative solutions for pioneering medical devices, ensuring compliance with the industry's most rigorous quality standards.
- Semiconductors: Revolutionizing chip manufacturing and its machinery by supplying essential core components pivotal to the fast-paced growth of the semiconductor industry.
- New Energy: Engaging in the vibrant and sustainable advancement of next-generation energy equipment, spearheading eco-friendly technological innovations.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, fostering the development of smart and electric vehicles with unmatched precision and dependability.
Main Products
- We pride ourselves on crafting custom non-standard components, extensively catering to the medical, automation, semiconductor, and automotive sectors, delivering unrivaled precision and superior quality in every piece.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 meticulously curated machines. renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This impressive capability empowers us to skillfully fulfill the intricate machining needs of diverse industries, delivering unparalleled precision and efficiency that sets new benchmarks in performance and reliability.
- Boasting a rich history that spans two decades, we expertly harness our vast production experience along with substantial technical and process prowess. This guarantees not only exceptional quality but also forward-thinking innovation, distinguishing us as true pioneers in the realm of precision engineering. We consistently deliver top-tier solutions crafted to meet the sophisticated demands of our clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unmatched Incoming Material Examination: Proof of Supreme Purity and Integrity
In our esteemed warehouse, every raw material is subjected to a comprehensive and thorough examination, ensuring not a single detail escapes our keen attention. This rigorous evaluation delves into both the chemical composition and physical characteristics, guaranteeing the selection of only premium quality materials. Suppliers are mandated to submit a Certificate of Origin and a stamped Declaration of Conformity-solidifying our relentless quest for excellence. Only materials that exemplify supreme purity and integrity qualify for our high-precision medical machining services. This stringent verification process acts as a vigilant guardian, resolutely committed to upholding extraordinary quality at every juncture, reinforcing our promise to deliver products that epitomize unrivaled sophistication and precision.
Comprehensive In-Process Quality Assurance: Mastering Precision at Every Stage
Within the harmonious cadence of our precision machining operations, every component undergoes exacting scrutiny to guarantee that dimensions and tolerances not just meet but surpass our high aspirations. Our continuous inspection protocol resembles a meticulously orchestrated symphony, expertly identifying potential discrepancies at the earliest opportunity, effectively preventing any non-conforming parts from advancing. This vigilant methodology is essential in minimizing the risk of inferior products, preserving the superior quality at each production phase, and ensuring our standard of distinction is consistently maintained throughout the entire process orchestration.
Strategic First Article Inspection (FAI): Achieving Flawless Precision Proactively
Our First Article Inspection (FAI) serves as a critical foundation, equipped with foresight to recognize and address potential production issues at their inception. This proactive strategy acts as a steadfast safeguard, preventing challenges from escalating into larger production concerns. The exhaustive and precise nature of our FAI process is indispensable in mitigating quality risks, ensuring our products consistently reach the zenith of excellence. This unwavering dedication to flawlessness is intricately woven into every phase of production, ensuring our standards consistently surpass the highest thresholds of quality.
Meticulous Final Inspection: Achieving the Pinnacle of Perfection
Before any product departs our facility, it undergoes a final inspection characterized by unparalleled meticulousness and rigor. This thorough process evaluates dimensions, visual appeal, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection not only serves as a testament but as a commitment to our relentless pursuit of quality, ensuring every product that leaves our facility is a beacon of our stringent standards. Our devotion to delivering only the highest quality products to our esteemed clients reinforces our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Established in 2009, with prestigious roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has firmly positioned itself as a prominent leader in the domain of high-precision component machining. For over two decades, buoyed by an unwavering dedication to cutting-edge innovation, we have delved into technical research, establishing ourselves as pioneers and visionaries within the precision engineering landscape. We boast an exceptional depth of technical expertise, crafting an outstanding market reputation that distinguishes us as industry frontrunners. Our unparalleled proficiency in precision medical machining services allows us to consistently achieve extremely tight tolerances and impeccably flawless surface finishes, solidifying our status as the premier choice in the medical sector.
With four strategically located production bases in the dynamic cities of Shenzhen and Guiyang, supported by a devoted team of over 400 highly skilled professionals, Donghui has developed a robust, vertically integrated industry chain that seamlessly amalgamates research and development, production, and delivery. This ensures we consistently meet and surpass the diverse requirements of our clients with exceptional efficiency and unmatched quality. Our cutting-edge facilities are equipped to tackle the most intricate and demanding machining tasks, upholding our esteemed reputation for excellence and innovative leadership.
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)