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 Unparalleled Excellence Our operations are a brilliant showcase of innovation, proudly featuring an extraordinary fleet of over 300 meticulously chosen machines. Each one stands as a marvel of engineering excellence. world-renowned precision machining toolsThese machines empower us to expertly cater to an extensive array of equipment categories. Our capability ensures that we meet the intricate machining demands of a diverse range of industries with unparalleled precision and efficiency. We are setting new benchmarks in performance and reliability, redefining the standards of excellence and innovation.
- With a proud history spanning two illustrious decades, we leverage our vast production expertise, paired with profound technical and process capabilities. This ensures exceptional quality and pioneering innovation, marking us as true leaders in the field of precision engineering. We consistently deliver superior solutions that address the sophisticated needs of our clients, reinforcing our leadership in innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Incoming Material Examination: Guaranteeing Material Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., the journey to excellence begins with a meticulous inspection of every raw material that graces our distinguished facility. Our vigilant team leaves no stone unturned, performing a thorough analysis of both the chemical and physical attributes to ensure only the very best materials become part of our precision CNC machining components. Suppliers must present a Certificate of Origin and a stamped Declaration of Conformity, standing as a testament to our relentless dedication to quality. We exclusively accept materials that meet our high standards of purity and integrity, essential for our precision-driven medical machining services. This rigorous authentication process is a steadfast guardian of quality, upholding our commitment to deliver products that epitomize unmatched refinement and precision.
In-Process Quality Assurance: Mastery of Precision at Every Stage
As we navigate the precise choreography of our machining processes, each component undergoes exacting scrutiny to ensure dimensions and tolerances not only meet but exceed our rigorous standards. Our continuous inspection process is akin to a masterfully conducted symphony, adeptly identifying any anomalies at the earliest possible juncture, thereby thwarting the advancement of non-compliant parts. This vigilant methodology is crucial for averting the production of subpar products, securing superior quality throughout every phase, and ensuring our unwavering excellence permeates the entirety of our operations.
Strategic First Article Inspection (FAI): Precision in Preempting Perfection
Our First Article Inspection (FAI) is a strategic cornerstone, equipped with the foresight to pinpoint and resolve production challenges at their inception. This proactive approach serves as a formidable defense, preventing issues from escalating into larger-scale production obstacles. The exhaustive rigor of our FAI process is indispensable for minimizing quality risks, ensuring our products consistently achieve the pinnacle of excellence. This steadfast commitment to perfection is intricately embedded in every step of the production journey, assuring our standards perpetually transcend the highest echelons of quality.
Comprehensive Final Inspection: The Apex of Perfection Embodied
Before any product leaves our facility, it is subjected to a final inspection, characterized by unrivaled meticulousness and precision. This thorough process assesses dimensions, visual allure, performance, and any specific customer requirements with exceptional accuracy. Our comprehensive inspection not only embodies our relentless pursuit of quality but also solidifies our commitment to delivering products that reflect our exacting standards. This dedication ensures every product that departs our facility is a testament to our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, yet with roots that majestically trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. shines as a beacon of excellence in the realm of high-precision component machining. With the steadfast dedication to innovation for over twenty years, we have embarked on a journey of technical exploration, solidifying our role as pioneers and visionary leaders in the precision engineering industry. We possess an exceptional breadth of technical expertise, carving a renowned market reputation that distinctly elevates us as industry icons. Our exceptional competence in precision medical machining services enables us to consistently achieve remarkably precise tolerances and impeccably flawless surface finishes, reinforcing our status as the top 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 professionals, Donghui has meticulously crafted a robust, vertically integrated industry chain that seamlessly combines research and development, production, and delivery. This allows us to consistently meet and exceed the diverse needs of our clients with unmatched efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to tackle the most complex and demanding machining tasks, maintaining 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)