Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication goes beyond mere obligation; it is an ardent quest for the sublime artistry and rigorous science that characterizes precision manufacturing. With an unyielding zeal for perfection, we elevate each component to a summit of craftsmanship and unrivaled excellence. Our exceptional expertise illuminates the landscape of high-end component fabrication, setting a benchmark for unmatched precision and extraordinary prowess. Leading the charge in innovation, we specialize in crafting revolutionary intelligent automation equipment. Our pioneering solutions adeptly cater to a wide array of industries, precisely fulfilling diverse application needs, including:
- Medical and Biotech: Transforming Healthcare with Unparalleled Precision: Delivering meticulously engineered, high-precision components and groundbreaking solutions for innovative medical devices, consistently maintaining the premium quality standards emblematic of our brand.
- Semiconductors: Catalyzing Technological Advancements: Empowering the semiconductor industry with vital core components crucial for chip production and associated equipment, ensuring smooth operations and driving forward technological innovation.
- New Energy: Leading the Charge towards Sustainable Innovation: Engaging actively in the sustainable evolution of innovative energy equipment, advancing eco-friendly technological innovations for a greener future.
- Automotive: Propelling the Future of Mobility: Supplying essential components that ignite innovation in the automotive sector, significantly contributing to the evolution of smart and electric vehicles.
Main Products: Mastery in Customization
- We take pride in crafting bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with exceptional precision and superior quality.
Why choose us
https://donghuiprecision.en.made-in-china.com/contact-info.html
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.
- With a storied legacy of excellence spanning over two remarkable decades, we harness an expansive reservoir of production expertise. This, combined with exceptional technical prowess and deep process knowledge, propels us to the forefront of precision engineering. Our steadfast dedication ensures not only unmatched quality but also cutting-edge innovation, solidifying our status as trailblazers in this highly specialized field.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Assessment
Every raw material that enters our prestigious facility is subjected to a thorough and exacting evaluation process, designed to meet our unparalleled quality standards. This meticulous assessment involves a deep dive into the chemical composition and a comprehensive inspection of the physical properties. In our unwavering pursuit of perfection, we mandate that suppliers furnish a Certificate of Origin and a duly endorsed Declaration of Conformity. This ensures that only materials of the highest integrity and purity are selected for our precision-focused medical machining processes. Our rigorous protocol is perfectly aligned with our dedication to providing unmatched quality, reflecting our commitment to perfection in every aspect.
Detailed In-Process Quality Control
Throughout our state-of-the-art machining operations, each component is subject to meticulous examination to guarantee that dimensions and tolerances not only meet but surpass our stringent specifications. Our continuous and diligent inspection protocol is designed to detect potential defects in their early stages, thereby preventing any non-conforming parts from progressing further in the production line. This vigilant approach is crucial in mitigating the risk of inferior products, ensuring excellence at every stage, and maintaining the highest standards throughout the process. Our commitment to quality remains unwavering, demonstrating our steadfast dedication to delivering superior products.
Strategic Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) is a strategic and pivotal process that plays a crucial role in the early identification and resolution of potential production issues. This proactive methodology ensures that challenges are addressed efficiently before they can escalate into more significant production concerns. The precise and comprehensive nature of our FAI reduces quality risks and ensures that our products consistently meet the highest industry standards. This unwavering commitment to excellence permeates the entire production cycle, enabling us to consistently exceed even the most stringent quality benchmarks and solidifying our reputation for delivering superior quality.
Comprehensive and Rigorous Final Inspection
Before any products depart from our esteemed facility, they undergo an exhaustive and rigorous final inspection. This process meticulously evaluates dimensions, appearance, performance, and compliance with customer-specific requirements. Our thorough inspections are a testament to our relentless dedication to quality, ensuring that every component dispatched upholds our exacting standards. We remain steadfast in our mission to deliver only the highest-caliber products to our esteemed customers, thereby maintaining our sterling reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009, yet tracing our esteemed heritage back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has magnificently evolved into a luminary within the realm of high-precision component machining. For over 20 years, our unyielding dedication to pioneering advancements has catapulted us to the apex of technical research, securing our standing as vanguards in the precision engineering industry. We have ascended to a remarkable zenith of technical mastery that reinforces a celebrated market position, unequivocally designating us as dominant leaders in our domain. Our unparalleled proficiency in precision medical machining guarantees the achievement of exceptionally tight tolerances and impeccable surface finishes, firmly anchoring us as the foremost ally for the medical sector.
With four strategically positioned production bases situated in the vibrant hubs of Shenzhen and Guiyang, empowered by a distinguished team of over 400 exceptionally skilled professionals, Donghui has skillfully orchestrated a comprehensive and vertically integrated industry chain. This integrates research and development, production, and delivery into a seamless tapestry, enabling us to not just meet but consistently exceed our customers' diverse expectations with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are expertly designed to tackle the most intricate and challenging machining projects, safeguarding our distinguished 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)
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