Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment to excellence shines through in every facet of our operations. Here, passion seamlessly merges with our profound expertise in the intricate art and meticulous science of precision manufacturing. As distinguished leaders in the industry, we do not merely participate; we consistently elevate standards to unprecedented heights, setting new benchmarks for others to aspire to. Our unparalleled expertise in high-end component manufacturing illuminates the pathway to unparalleled precision and exceptional excellence. With every project we undertake, we redefine industry benchmarks, continuously elevating the standard and transforming the landscape of precision manufacturing. Our commitment ensures that we remain at the forefront of innovation, shaping the future of the industry. As pioneers of innovation, we are at the forefront of designing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly cater to a diverse array of industries, addressing a wide spectrum of applications and needs, including:
- Medical and Biotech: We deliver meticulously engineered, high-precision components and cutting-edge solutions for state-of-the-art medical devices. Our commitment ensures strict adherence to the industry's most exacting quality standards, consistently advancing the frontiers of innovation in healthcare technology.
- Semiconductors: Ushering in a new era in chip manufacturing and specialized machinery, we provide essential core components that play a pivotal role in driving rapid advancements and technological breakthroughs within the semiconductor industry.
- New Energy: Actively participating in the dynamic and sustainable evolution of next-generation energy equipment, we lead the charge in eco-friendly technological advancements. Our efforts champion the cause of a greener future, ensuring a sustainable path forward.
- Automotive: Delivering vital components that ignite innovation within the automotive sector, we propel the evolution of smart and electric vehicles with unmatched precision and steadfast reliability, powering the future of transportation.
Main Products
- We take immense pride in crafting bespoke non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors. Each piece we create is a testament to our unwavering commitment to unmatched precision and superior quality, solidifying our reputation as industry leaders.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations stand as a beacon of innovation and technological advancement, showcasing an impressive lineup of over 300 cutting-edge machines. Each piece of equipment is a masterpiece of engineering and precision, representing the height of technical achievement. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderArmed with state-of-the-art machinery, our capabilities span an extensive range of equipment categories, empowering us to meet even the most intricate of machining demands across a multitude of industries. Our unparalleled precision and efficiency set new industry standards, transforming benchmarks with steadfast reliability and groundbreaking innovation.
- With a distinguished legacy of two decades, we seamlessly blend vast production experience with formidable technical and process expertise. This powerful synergy ensures top-tier quality and cutting-edge innovation, affirming our position as trailblazers in precision engineering. We adeptly deliver elite solutions tailored to meet the sophisticated needs of our clients, bolstering our reputation as leaders in transformative innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Inspection of Incoming Materials: Ensuring Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our extraordinary commitment to quality is deeply rooted in the comprehensive evaluation and thorough inspection of every material that enters our state-of-the-art facility. Our dedicated team performs extensive analyses, vigilantly assessing both chemical and physical properties to ensure only the finest materials are used in creating our CNC machining parts. We mandate that suppliers provide a Certificate of Origin and a stamped Declaration of Conformity, underscoring our steadfast dedication to quality assurance. Only materials demonstrating impeccable purity and integrity are accepted, which is imperative for our high-precision medical machining services. Our rigorous verification process acts as a steadfast guardian, resolutely upholding exceptional quality standards at every juncture, bolstering our commitment to delivering products of exceptional precision and unparalleled excellence.
In-Process Quality Assurance: Mastering Precision at Every Stage
Throughout our flawlessly coordinated precision machining processes, each component is scrutinized to ensure dimensions and tolerances not only meet but exceed our lofty standards. Our continuous inspection protocols function as a harmoniously orchestrated symphony, expertly identifying discrepancies early to prevent the advancement of non-conforming parts. This proactive vigilance is essential in mitigating the risk of subpar products, safeguarding exceptional quality across each production phase, and ensuring our standard of excellence remains unyielding from inception to completion.
Strategic First Article Inspection (FAI): Perfecting Precision from the Start
Our First Article Inspection (FAI) stands as a pivotal strategic pillar, equipped with foresight to proactively address potential production challenges from the outset. This foresight serves as a reliable sentinel, averting issues from escalating into significant production impediments. The meticulous precision of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the pinnacle of excellence. This relentless pursuit of perfection is intricately woven into every step of our production journey, guaranteeing our standards consistently surpass the highest echelons of quality.
Comprehensive Final Inspection: Achieving Perfection's Pinnacle
Before any product departs our facility, it is subjected to a final inspection process defined by unmatched meticulousness and thoroughness. This rigorous examination meticulously scrutinizes dimensions, visual aesthetics, performance, and any specific customer requirements with unparalleled precision. Our comprehensive inspection signifies our relentless quest for quality, ensuring each product leaving our facility stands as a brilliant paragon of our rigorous standards. Our unwavering commitment to delivering only the finest quality products to our esteemed customers fortifies our reputation for unmatched excellence and dependability.
Packaging & Shipping
Company Profile
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., established in 2009, shines as a beacon of excellence and innovation in precision engineering. With our roots tracing back to 2002, we stand as a venerable leader in crafting high-precision components. Our unwavering drive for groundbreaking innovation keeps us at the forefront of technical research, where we continuously redefine and push the boundaries of precision engineering. For over two decades, we have embodied the essence of visionary pioneers, setting new benchmarks and exploring new horizons in this ever-evolving landscape. We boast unparalleled technical expertise that positions us at the pinnacle of the industry, marking us as true leaders. Our outstanding proficiency in precision medical machining services allows us to consistently attain ultra-tight tolerances and perfect surface finishes. This firmly establishes our standing as the preferred partner for the medical sector, amplifying our esteemed prestige and solidifying our reputation for unmatched excellence.
With four strategically located production bases in the vibrant cities of Shenzhen and Guiyang, and 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 integration ensures that we not only meet but exceed the diverse requirements of our clients with unparalleled efficiency and exceptional quality. Our state-of-the-art facilities are fully equipped to tackle the most intricate and demanding machining challenges, maintaining our esteemed 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)