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 shining example of innovation and advancement. We proudly present an exquisite collection of over 300 state-of-the-art machines, each one a marvelous testament to superior engineering and precision excellence. world-renowned precision machining toolsOur cutting-edge machinery empowers us to expertly tackle a vast spectrum of equipment categories, ensuring we meet the intricate and diverse machining needs of numerous industries. Our unmatched precision and efficiency are redefining excellence, setting new industry standards with our unwavering reliability. We are revolutionizing the field by consistently establishing new performance benchmarks, showcasing our commitment to excellence.
- With a distinguished legacy spanning two decades, we harness our extensive production experience and substantial technical and process expertise. This potent combination guarantees superior quality and innovative foresight, marking us as true pioneers in the realm of precision engineering. We consistently deliver premium solutions tailored to the sophisticated requirements of our clients, solidifying our stature as leaders in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Examination of Incoming Materials: Ensuring Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our pursuit of excellence commences with an exhaustive and systematic examination of every raw material that graces our esteemed facility. Our vigilant team meticulously scrutinizes these materials, assessing both chemical and physical properties to secure the utmost quality needed for our Advanced CNC Machining Parts for Automation with Tightest Tolerance Ranges. We demand from our suppliers a Certificate of Origin accompanied by a stamped Declaration of Conformity, underscoring our unwavering commitment to quality. Only materials epitomizing purity and integrity are accepted, pivotal to our high-precision medical machining services. This rigorous verification process acts as an unyielding sentinel, steadfastly upholding exceptional quality standards, reinforcing our pledge to deliver products that epitomize precision and excellence.
In-Process Quality Assurance: Mastering Precision at Every Phase
Within the flawless choreography of our precision machining operations, each component is subjected to meticulous inspection to ensure dimensions and tolerances meet, and surpass, our exacting standards. Our continuous inspection procedures resemble a masterfully orchestrated symphony, adeptly identifying discrepancies at the earliest opportunity, preventing the progression of non-conforming parts. This proactive vigilance is paramount in mitigating risks of inferior products, safeguarding superior quality throughout every production phase, ensuring our esteemed standard of excellence is upheld consistently across the entire production process.
Strategic First Article Inspection (FAI): Precision in Anticipating Perfection
Our First Article Inspection (FAI) is a strategic linchpin, endowed with the vision to identify and address potential production challenges from the very start. This preemptive approach acts as an unyielding guardian, halting issues before they mature into large-scale production difficulties. The meticulous precision of our FAI process is crucial in minimizing quality risks, ensuring our products perpetually reach the summit of excellence. This steadfast commitment to perfection is intricately interwoven into every phase of the production journey, ensuring our standards consistently surpass the pinnacle of quality.
Comprehensive Final Inspection: Attaining the Pinnacle of Perfection
Before any product departs our facility, it undergoes a final inspection process of unrivaled meticulousness and rigor. This detailed evaluation scrutinizes dimensions, visual aesthetics, performance, and any bespoke customer requirements with unparalleled precision. Our comprehensive inspection is emblematic of our relentless quest for quality, ensuring every product leaving our facility is a beacon of our stringent standards. Our steadfast commitment to delivering only the highest quality products to our esteemed customers fortifies our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, yet rooted in the pioneering spirit of 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a luminary in the high-precision component machining industry. For over two decades, we have passionately pursued transformative innovation, boldly exploring the vanguard of technical research. This relentless quest has not only fortified our position but also heralded us as trailblazers and visionaries within the precision engineering sphere. We command an unparalleled level of technical dexterity, earning a stellar reputation that sets us apart as market leaders. Our unrivaled expertise in precision medical machining allows us to achieve extraordinarily tight tolerances and stunningly immaculate surface finishes. This unwavering commitment to excellence solidifies our standing as the premier choice for the medical sector.
With four strategically located production bases in the dynamic hubs of Shenzhen and Guiyang, supported by a dedicated team of over 400 exceptionally skilled professionals, Donghui has crafted a robust, vertically integrated industry chain. This chain masterfully combines research and development, production, and delivery, ensuring we not only meet but surpass our clients' diverse demands with unparalleled efficiency and superior quality. Our cutting-edge facilities are equipped to manage the most intricate and demanding machining tasks, maintaining our prestigious reputation for excellence and pioneering 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)