Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends mere obligation; it is an exquisite fusion of heartfelt passion and exceptional expertise in the sophisticated realm of precision manufacturing. We are setting new benchmarks and redefining standards across the industry with our unrivaled craftsmanship. Our unrivaled expertise illuminates the path in the high-end component manufacturing sector, forging an avenue toward impeccable precision and extraordinary excellence, thus redefining the benchmarks of the industry. As trailblazers of innovation, we are at the forefront of creating and delivering revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly address the diverse needs of various industries, accommodating a broad spectrum of applications and requirements, such as:
- Medical and Biotech: Providing meticulously crafted, high-precision components and ingenious solutions for the forefront of medical devices, ensuring we meet the highest echelons of quality standards.
- Semiconductors: Elevating chip manufacturing and associated machinery by supplying essential core components that are crucial to the semiconductor industry's swift advancement.
- New Energy: Fully engaged in the vibrant and sustainable development of next-generation energy equipment, propelling eco-friendly technological innovations forward.
- Automotive: Providing indispensable components that propel innovation within the automotive industry, supporting the evolution of intelligent and electric vehicles with unmatched precision and reliability.
Main Products
- We excel in the art of crafting bespoke non-standard components that extensively cater to the medical, automation, semiconductor, and automotive industries, all while guaranteeing unmatched precision and top-tier quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, setting new benchmarks in performance and reliability.
- With a rich history spanning two decades, we harness our vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This sets us apart as true pioneers in the realm of precision engineering, consistently delivering top-tier solutions to meet the sophisticated demands of our clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Testament to Unrivaled Purity and Integrity
Each raw material, upon entering our esteemed warehouse, is subjected to an exhaustive and meticulous review where no element is overlooked. Our comprehensive analyses scrutinize chemical compositions and physical qualities, accepting only materials that epitomize the utmost purity and integrity. We demand a Certificate of Origin and a stamped Declaration of Conformity from suppliers, symbols of our steadfast commitment to excellence. Only those materials that achieve unparalleled purity and integrity are integrated into our high-precision medical machining services. This authentication process is a vigilant sentinel, dedicated to upholding remarkable quality consistently, reinforcing our pledge to deliver products of extraordinary refinement and precision.
Intensive In-Process Quality Assurance: Crafting Precision with Mastery at Every Stage
In the rhythmic flow of our precision machining operations, every component undergoes meticulous examination to ensure dimensions and tolerances not only fulfill but surpass our lofty standards. Our continuous inspection protocol is a remarkably synchronized process, proficient in identifying potential inconsistencies at their inception, effectively preventing any substandard parts from advancing. This vigilant approach is pivotal in reducing the risk of inferior products, maintaining superior quality at every production stage, and guaranteeing our standard of excellence is consistently upheld during the entire orchestration of processes.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) is a strategic cornerstone, equipped with foresight to identify and resolve potential production complexities at their outset. This proactive method serves as an unbreakable safeguard, preventing issues from escalating into mass production problems. The exhaustive precision of our FAI process is essential in minimizing quality risks, ensuring our products invariably reach the pinnacle of excellence. This steadfast commitment to perfection is intricately woven into every production phase, ensuring our standards consistently exceed the highest thresholds of quality.
Meticulous Comprehensive Final Inspection: Embodying the Apex of Perfection
Before any product leaves our facility, it undergoes a final inspection of extraordinary meticulousness and rigor. This rigorous evaluation assesses dimensions, visual appeal, performance, and any customer-specific requirements with exceptional precision. Our comprehensive inspection not only affirms but also signifies our relentless pursuit of quality, ensuring every product departing our facility is a testament to our exacting standards. Our dedication to delivering only the highest quality products to our valued customers strengthens our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Established in 2009, yet drawing strength from our roots that extend back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen to unparalleled prestige as a vanguard in the realm of high-precision component machining. Our relentless commitment to pioneering innovation over these transformative years has seen us delve deeply into the frontiers of technical research, firmly positioning us as visionaries and thought leaders within the precision engineering domain. We have developed an extraordinary level of technical proficiency, crafting a market reputation that genuinely sets us apart as industry frontrunners. Our unmatched expertise in precision medical machining services empowers us to achieve remarkably tight tolerances and impeccably smooth surface finishes time and again, solidifying our status as the preeminent choice in the medical industry.
With a network of four strategically positioned production sites in the vibrant urban landscapes of Shenzhen and Guiyang, supported by a committed team exceeding 400 highly skilled professionals, Donghui has constructed a powerful, vertically integrated supply chain that effortlessly unifies research, development, manufacturing, and distribution. This integration guarantees that we consistently satisfy and often surpass the wide-ranging demands of our clients with remarkable precision and unmatched quality. Our cutting-edge facilities are fully equipped to undertake even the most complex and challenging machining projects, perpetuating our esteemed reputation for excellence and groundbreaking innovation.
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)