Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not just a responsibility; it is a fervent passion for the exquisite art and the precise science of precision manufacturing. Our unparalleled expertise is the beacon in the sophisticated world of high-end component fabrication, guiding the journey to ultimate precision with unwavering dedication. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Equipped with state-of-the-art innovations, our solutions cater to a plethora of industries, effectively addressing diverse applications, such as:
- Medical and Biotech: Delivering meticulously crafted, high-precision components and cutting-edge solutions for advanced medical devices, ensuring the highest quality standards are not only met but exceeded.
- Semiconductors: Empowering the future of chip manufacturing and its essential equipment by providing critical core components that are the backbone of the industry's prosperity.
- New Energy: Spearheading the dynamic and sustainable evolution of pioneering energy equipment, driving forward environmentally-friendly technological advancements.
- Automotive: Supplying essential components that propel innovation in the automotive industry, contributing to the evolution of intelligent and electric vehicles.
Main Products
- We specialize in creating bespoke, non-standard components, serving extensively across the medical, automation, semiconductor, and automotive sectors, guaranteeing unparalleled precision and exceptional quality in every product.
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.
- 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, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Premier Incoming Material Scrutiny
Every piece of raw material that makes its way into our secure warehouse undergoes an exhaustive and stringent review. Our meticulous examination process includes an in-depth analysis of the chemical composition, coupled with a thorough inspection of the physical properties. We maintain an unwavering dedication to superior quality, demanding that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the finest caliber materials are selected for our high-precision medical machining services. Our rigorous verification process assures these materials meet the apex of integrity and purity, perfectly reflecting our steadfast commitment to unparalleled quality.
Rigorous In-Process Quality Control
During our intricate and precise machining operations, every component is meticulously inspected to ensure its dimensions and tolerances not only meet but exceed our rigorous specifications. Our diligent and continuous inspection strategy is meticulously crafted to detect potential defects at the earliest opportunity, preventing any non-conforming parts from advancing to subsequent stages. This vigilant and proactive approach is pivotal in minimizing the risk of substandard goods, ensuring exceptional quality at every phase of production, and upholding excellence throughout the entire process.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) process is an essential strategic cornerstone for identifying and resolving potential production challenges early on. This proactive methodology prevents issues from escalating into large-scale production. The comprehensive and precise nature of our FAI process is crucial in reducing quality risks, ensuring our products consistently reach the zenith of standards. Our dedication to unparalleled excellence permeates every facet of the production cycle, guaranteeing that we consistently meet and surpass the most stringent quality benchmarks.
Thorough Final Inspection for Ultimate Assurance
Before any product departs from our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous process thoroughly evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our all-encompassing inspection process stands as a testament to our relentless pursuit of quality, ensuring that every part dispatched from our premises meets our exacting standards. We are unwavering in our commitment to delivering only the highest quality products to our valued customers, steadfastly upholding our reputation for unparalleled 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 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)