Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication transcends the boundaries of ordinary duty. It is propelled by an intense passion for the exquisite artistry and meticulous science that is precision manufacturing. Our unmatched expertise radiates brilliantly within the sphere of high-end component fabrication, illuminating the pathway to unprecedented precision and unrivaled excellence. Pioneers in the field, we lead the charge in developing and producing cutting-edge intelligent automation equipment. Our advanced solutions span across diverse industries, efficiently addressing an expansive range of applications, which include:
- Medical and Biotech: We deliver meticulously crafted, high-precision components and groundbreaking solutions for pioneering medical devices, consistently maintaining the pinnacle of quality standards.
- Semiconductors: We enhance chip production and its associated apparatus by supplying indispensable core components that are crucial to the industry's triumph and technological advancement.
- New Energy: We are actively engaging in the dynamic and sustainable development of innovative energy equipment, championing eco-friendly technological progress.
- Automotive: We provide vital components that fuel innovation within the automotive sector, aiding the evolution and growth of both smart and electric vehicles.
Main Products
- We specialize in creating bespoke non-standard components, extensively serving the medical, automation, semiconductor, and automotive industries. We ensure unparalleled 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 state-of-the-art 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 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 positions us at the forefront of the precision engineering domain, setting us apart as pioneers.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every single piece of raw material that arrives at our facility embarks on a thorough and rigorous examination journey. This meticulous process encompasses detailed analyses of both the chemical composition and physical characteristics. Our unwavering commitment to excellence dictates that every supplier provides a Certificate of Origin along with 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 serve as an ironclad guarantee, ensuring that these materials align with the highest standards of integrity and purity, embodying our steadfast commitment to unparalleled quality.
Intensive In-Process Quality Assurance
Throughout our complex and critical machining operations, each component undergoes exhaustive and meticulous scrutiny to confirm its dimensions and tolerances not only meet but exceed our rigorous specifications. Our vigilant and continuous inspection protocol is masterfully designed to detect and rectify potential discrepancies at the earliest possible stage. This proactive approach is essential in preventing non-conforming parts from advancing to subsequent stages, thereby significantly minimizing the risk of inferior products. Consequently, supreme quality is consistently upheld at every step of the production process, exemplifying our relentless pursuit of excellence.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) is more than a process; it is a foundational strategy crucial for preemptively identifying and resolving potential production challenges. This forward-thinking approach is vital in preventing issues from escalating into mass production. The thorough and precise methodology of our FAI is essential in mitigating quality risks, ensuring that our products consistently reach the pinnacle of standards. This unwavering dedication to excellence permeates every aspect of the production cycle, guaranteeing that our offerings not only meet but consistently exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs from our facility, it undergoes an exacting and comprehensive final inspection. This rigorous process meticulously examines every detail, from dimensions and visual appeal to performance and any specific customer requirements. Our comprehensive inspection protocol is a testament to our relentless pursuit of quality, ensuring that every component released from our facility adheres to our exacting standards. Our commitment is unwavering in delivering nothing less than the finest quality products to our cherished customers, upholding our esteemed reputation for excellence and unwavering 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 amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice 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 chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle 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)