Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication extends far beyond obligation; it's inspired by a passionate devotion to the exquisite blend of artistry and the meticulous science inherent in precision manufacturing. Our unrivaled expertise illuminates the realm of high-end component fabrication, paving the path to unmatched precision and unparalleled excellence. Leading the way in developing and producing innovative intelligent automation equipment, our cutting-edge solutions extend across a multitude of industries, effectively meeting a diverse range of applications, including:
- Medical and Biotech: Providing meticulously crafted, high-precision components and groundbreaking solutions for state-of-the-art medical devices, steadfastly maintaining the pinnacle of quality standards.
- Semiconductors: Enhancing the production of chips and their associated equipment by offering indispensable core components that are crucial to the industry's progress and success.
- New Energy: Actively contributing to the dynamic and sustainable advancement of innovative energy equipment, advocating for environmentally friendly technological progress.
- Automotive: Supplying crucial components that fuel innovation in the automotive sector, supporting the transformation and growth of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries, ensuring unrivaled precision and exceptional quality at every juncture.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned and cutting-edge machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This impressive capability empowers us to skillfully fulfill the intricate and demanding machining needs of diverse industries with unparalleled precision and efficiency, ensuring each task is completed to the highest standards.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This unique combination sets us apart as pioneers in the realm of precision engineering, consistently delivering groundbreaking solutions and exceeding industry expectations.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every single piece of raw material that comes through our doors embarks on an extraordinary journey of rigorous examination. This meticulous process involves intricate analyses of both chemical composition and physical characteristics, ensuring only the finest materials pass through. Our unwavering dedication to excellence mandates that every supplier furnishes a Certificate of Origin and a stamped Declaration of Conformity. This stringent selection process ensures that only the finest materials are chosen for our precision medical machining services. Our rigorous validation procedures guarantee that these materials adhere to the highest standards in integrity and purity, resonating with our commitment to unparalleled quality.
Intensive In-Process Quality Assurance
Amid our intricate and high-stakes machining operations, each component undergoes exhaustive scrutiny to ensure its dimensions and tolerances exceed our rigorous specifications. Our vigilant inspection protocol is crafted to identify and rectify discrepancies at the earliest possible stage. This preemptive approach is vital in preventing non-conforming parts from advancing, significantly reducing the risk of substandard products. As a result, supreme quality is consistently maintained, epitomizing our perpetual pursuit of excellence.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) is more than a process; it's a cornerstone strategy pivotal in preemptively identifying and resolving production challenges. This anticipatory approach is crucial in preventing issues from spreading into mass production. Our exhaustive methodology mitigates quality risks, ensuring our products consistently reach the pinnacle of standards. This dedication to excellence is woven throughout every facet of the production cycle, guaranteeing that our offerings not only meet but surpass the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product leaves our facility, it undergoes an exacting and all-encompassing final inspection. This rigorous process scrutinizes every aspect, from dimensions and visual appeal to performance and specific customer requirements. Our comprehensive inspection protocol is a testament to our relentless pursuit of quality, ensuring every component aligns with our exacting standards. Our commitment is unwavering in delivering the finest quality products to our esteemed customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have cultivated an extraordinary depth of technical know-how, which has propelled us to earn a stellar market reputation. This sets us apart as a preeminent leader in the industry of precision medical machining services. Our capabilities are unparalleled, consistently achieving incredibly tight tolerances and impeccable surface finishes, establishing us as the preferred partner in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This dynamic chain seamlessly interlaces research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are poised to tackle the most intricate and demanding machining tasks, maintaining our 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)