Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unwavering commitment to excellence. Our passion seamlessly intertwines with our profound expertise, mastering the intricate art and meticulous science of precision manufacturing. Far from being mere participants, we are distinguished as industry leaders, consistently setting and surpassing new standards to elevate industry benchmarks. Our unparalleled mastery illuminates the forefront of high-end component manufacturing, paving the way for impeccable precision and exceptional excellence. With each project, we redefine industry benchmarks, perpetually raising the bar and transforming the landscape of precision manufacturing to new heights. As trailblazers in innovation, we pioneer the design and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly cater to a vast spectrum of industries, addressing a diverse array of applications and needs, including:
- Medical and Biotech: Delivering meticulously crafted high-precision components and groundbreaking solutions for avant-garde medical devices, we adhere to the industry's most exacting quality standards, continually pushing the frontiers of innovation.
- Semiconductors: Ushering in a transformative era in chip manufacturing and machinery with the supply of essential core components, we are pivotal in driving the rapid advancement of the semiconductor industry.
- New Energy: Actively fostering the dynamic and sustainable evolution of next-generation energy equipment, we are at the forefront of eco-friendly technological advancements, advocating for a healthier green future.
- Automotive: Supplying critical components that spark innovation within the automotive sector, we propel the evolution of smart and electric vehicles with unparalleled precision and steadfast reliability.
Main Products
- We take immense pride in crafting bespoke, non-standard components that extensively serve the medical, automation, semiconductor, and automotive sectors. Each piece we produce epitomizes our dedication to unrivaled precision and superior quality, setting a new standard in manufacturing excellence.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our operations illuminate the path of innovation and advancement, showcasing an extraordinary collection of over 300 state-of-the-art machines. Each unit stands as a beacon of superior engineering and precision, reflecting our commitment to quality and excellence. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur cutting-edge machinery endows us with the ability to masterfully handle a vast array of equipment categories. This unrivaled capability enables us to proficiently fulfill the complex machining requirements across various industries, delivering unmatched precision and efficiency. As we redefine what excellence means, we set new standards of performance and elevate industry benchmarks with our unparalleled reliability.
- With a proud legacy spanning two decades, we harness our extensive production experience, coupled with substantial technical and process expertise. This powerful synergy guarantees superior quality and innovative insight, positioning us as pioneers in the realm of precision engineering. We deliver premium solutions that address the sophisticated demands of our clientele, solidifying our status as frontrunners in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Examination of Incoming Materials: Assuring Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment to superior quality begins with a rigorous examination of every raw material that enters our state-of-the-art facility. Our expert team conducts a detailed analysis, thoroughly assessing chemical and physical properties to ensure that only the finest quality materials are used in our CNC machining parts. We demand a Certificate of Origin and a stamped Declaration of Conformity from our suppliers, underscoring our steadfast dedication to quality. Only materials of the highest purity and integrity make the cut, crucial for our precise medical machining services. This exhaustive verification process is a steadfast protector of our quality standards, reinforcing our promise to deliver products with unparalleled precision and excellence.
In-Process Quality Assurance: Mastering Precision at Every Stage
Our precision machining operations are conducted with meticulous care, ensuring each component is examined with precision to meet, and often exceed, our superior standards. Our continuous inspection processes are like a well-conducted orchestra, adeptly spotting and rectifying discrepancies at the earliest possible stage. This vigilant approach is crucial in preventing substandard products, maintaining exceptional quality throughout every production phase, and consistently upholding our standard of excellence from start to finish.
Strategic First Article Inspection (FAI): Anticipating Perfection with Precision
Our First Article Inspection (FAI) process is a strategic pillar, designed to foresee and address potential production challenges from the outset. This proactive approach acts as a vigilant guardian, expertly preventing issues from escalating into major production concerns. The meticulous precision of our FAI process is vital in reducing quality risks, ensuring our products consistently reach the pinnacle of excellence. This dedication to flawless execution permeates every production stage, ensuring our standards continuously surpass the highest levels of quality.
Comprehensive Final Inspection: Reaching the Summit of Perfection
Before any product leaves our facility, it undergoes a final inspection process marked by meticulous and rigorous evaluation. This thorough assessment examines dimensions, visual aesthetics, performance, and specific customer requirements with extraordinary precision. Our comprehensive inspection process is a testament to our relentless pursuit of quality, ensuring that every product leaving our facility embodies our stringent standards. This unwavering commitment to delivering only the highest quality products to our valued customers solidifies our reputation for excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of precision and excellence in the realm of high-precision component machining. With a legacy that extends back to 2002, our steadfast commitment to transformative innovation propels us to the cutting edge of technical research. For more than two decades, we have entrenched our status as trailblazers and visionaries, setting new standards in the precision engineering landscape. We possess unmatched technical expertise, securing a stellar reputation that distinguishes us as industry leaders. Our superior proficiency in precision medical machining services allows us to consistently achieve ultra-tight tolerances and impeccably flawless surface finishes, positioning us as the premier choice for the medical sector and reinforcing our esteemed status.
With four strategically located production bases in the dynamic cities of Shenzhen and Guiyang, backed by a devoted workforce of over 400 highly skilled professionals, Donghui boasts a robust, vertically integrated industry chain. This seamlessly unites research and development, production, and delivery, ensuring that we not only meet but surpass the diverse needs of our clients with unparalleled efficiency and superior quality. Our state-of-the-art facilities are primed to handle the most intricate and demanding machining tasks, cementing our esteemed 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)