Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every creation is a masterpiece of precision crafting, where our relentless pursuit of excellence meets the art and science of superior manufacturing. As vanguards of quality, we don't just participate in the industry; we lead it, revolutionizing standards and setting pioneering benchmarks for others to aspire to. Our unrivaled mastery lights the way in high-end component manufacturing, consistently setting new standards for precision and distinction. Each venture redefines the industry's expectations, pushing boundaries and maintaining our position as a transformative force in precision manufacturing and innovation. Trailblazers of ingenuity, we spearhead the creation of revolutionary intelligent automation equipment. Our state-of-the-art solutions adapt seamlessly across industries, fulfilling diverse applications and needs, including:
- Medical and Biotech: Precision-engineered components and avant-garde solutions are our forte, elevating medical devices to new heights. We adhere to stringent industry quality protocols, continuously advancing healthcare technology frontiers.
- Semiconductors: Driving a renaissance in chip production and specialized machinery, our core components are crucial to the semiconductor industry's dynamic growth and innovation, paving the way for technological breakthroughs.
- New Energy: We are pioneers in the sustainable evolution of next-gen energy equipment, advancing eco-friendly tech for a greener tomorrow and leading the charge toward a sustainable future.
- Automotive: Our components fuel innovation in the automotive realm, championing the development of intelligent and electric vehicles with unparalleled precision and unwavering dependability, shaping the future of transport.
Main Products
- We take great pride in creating tailored non-standard components, significantly contributing to the medical, automation, semiconductor, and automotive industries. Each product exemplifies our dedication to unparalleled precision and supreme quality, reinforcing our standing as leaders in the industry.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations serve as a beacon of innovation and progress, showcasing an impressive arsenal of over 300 cutting-edge machines. Each piece of equipment exemplifies outstanding engineering and precision, standing as a hallmark of high technical achievement. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOutfitted with the latest and most sophisticated machinery, our capabilities span a vast array of equipment categories. This allows us to fulfill the most complex machining requirements across diverse industries. Our unparalleled precision and productivity not only redefine industry standards but also lead the charge in setting new benchmarks for reliability and innovation.
- With a celebrated legacy that extends over two decades, we seamlessly blend deep production experience with outstanding technical and process expertise. This powerful combination assures top-tier quality and forward-looking innovation, establishing us as trailblazers in precision engineering. We consistently provide high-end solutions that are meticulously crafted to meet our clients' advanced needs, reinforcing our position as frontrunners in transformative innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Inspection: Safeguarding Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our exceptional quality is underpinned by a rigorous evaluation and inspection of every material entering our state-of-the-art facility. Our dedicated team conducts exhaustive analyses, meticulously examining both chemical and physical properties to secure only the finest materials essential for our CNC machining parts. We mandate suppliers to provide a Certificate of Origin with a stamped Declaration of Conformity, underscoring our steadfast commitment to quality assurance. Only materials of superior purity and integrity are accepted, a necessity for our high-precision medical machining services. Our rigorous verification process acts as a vigilant sentinel, steadfastly upholding exceptional quality standards at every stage, reinforcing our dedication to delivering products of immaculate precision and peerless excellence.
In-Process Quality Assurance: Mastering Precision at Every Turn
Within the seamless choreography of our precision machining processes, every component undergoes intense scrutiny to ensure dimensions and tolerances not just meet but exceed our exceptional standards. Our ongoing inspection protocols function as a masterfully orchestrated symphony, adeptly identifying discrepancies early to avert the progression of non-conforming parts. This anticipatory vigilance is crucial in mitigating the risk of inferior products, preserving exceptional quality throughout each production phase, and ensuring our standard of excellence is unwaveringly upheld from inception to completion.
Strategic First Article Inspection (FAI): Perfecting Precision from Inception
Our First Article Inspection (FAI) serves as a cornerstone strategy, endowed with the foresight to proactively address potential production challenges at the outset. This foresight acts as a steadfast guardian, forestalling issues from developing into extensive production dilemmas. The meticulous precision of our FAI process is pivotal in minimizing quality risks, ensuring our products consistently attain the pinnacle of excellence. This relentless pursuit of perfection is intricately woven into each phase of our production journey, ensuring our standards consistently surpass the zenith of quality.
Comprehensive Final Inspection: Attaining the Pinnacle of Perfection
Before any product departs our facility, it undergoes a final inspection process characterized by unparalleled meticulousness and thoroughness. This rigorous evaluation meticulously scrutinizes dimensions, visual aesthetics, performance, and any specialized customer requirements with unmatched precision. Our exhaustive inspection is a testament to our relentless pursuit of quality, ensuring every product leaving our facility stands as a luminous exemplar of our stringent standards. Our unwavering commitment to delivering only the highest quality products to our esteemed customers fortifies our reputation for unmatched excellence and reliability.
Packaging & Shipping
Company Profile
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., a beacon of excellence and innovation, was founded in 2009. Our roots trace back to 2002, reflecting our esteemed reputation as a pioneer in high-precision component machining. Through unwavering dedication to transformative innovation, we remain at the forefront of technical research, consistently pushing the boundaries of precision engineering. For over two decades, we have personified visionary leadership, setting new benchmarks and exploring untapped frontiers in this ever-evolving industry. We command unparalleled technical prowess that places us at the industry's pinnacle, distinguishing us as true leaders. Our extraordinary competence in precision medical machining services enables us to consistently achieve ultra-tight tolerances and flawless surface finishes. This firmly establishes our role as the preferred partner for the medical sector, enhancing our esteemed prestige and solidifying our reputation for unmatched excellence.
With four strategically located production bases in the vibrant cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled professionals, Donghui exemplifies a robust, vertically integrated industry chain that seamlessly merges research and development with production and delivery. This synergy ensures we not only meet but exceed the diverse demands of our clients with unsurpassed efficiency and superior quality. Our state-of-the-art facilities are equipped to tackle the most intricate and demanding machining challenges, reinforcing our prestigious reputation for pioneering leadership and excellence.
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)