Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is far more than mere duty-it's a profound passion for the refined art and exacting science of precision manufacturing. Our unrivaled expertise shines brightly in the arena of high-end component creation, leading the way to flawless precision and excellence. We are at the forefront of developing and manufacturing revolutionary intelligent automation equipment. Our advanced solutions span a wide array of industries, effectively meeting diverse needs, including:
- Medical and Biotech: Delivering precisely crafted high-precision components and pioneering solutions for cutting-edge medical devices, consistently meeting the highest quality standards.
- Semiconductors: Enhancing chip production and its related equipment with crucial core components indispensable for the industry's triumph.
- New Energy: Actively driving the dynamic and sustainable progress of innovative energy equipment, promoting the advancement of eco-friendly technologies.
- Automotive: Supplying essential components that drive innovation in the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in creating non-standard customized components, serving the medical, automation, semiconductor, and automotive industries with unparalleled precision and premium quality.
Why choose us
Core Advantages
- A Fleet of Excellence: Explore our Fleet of Excellence, a testament to our commitment to precision and quality. Each machine in our lineup is a cornerstone in our pursuit of engineering mastery. Our operations proudly showcase an extraordinary assortment of over 300 machines, each a marvel in its own right. These pieces of cutting-edge technology form the backbone of our industry-leading capabilities. Renowned in the industry, our machines are the epitome of technological advancement, ensuring we stay at the forefront of innovation and precision. Machines: Our collection of machines is a symphony of engineering excellence, designed to cater to the vast array of equipment categories with unmatched expertise., 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. Our dedication to perfection ensures that each project is executed with the highest standards, guaranteeing customer satisfaction.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering. Our legacy is built on a foundation of experience, expertise, and excellence.
State-of-the-Art Production Equipment: Our state-of-the-art production equipment is the epitome of modern engineering. Each piece is meticulously chosen to enhance our production capabilities, ensuring superior quality in every project.
High-Precision Inspection Equipment: Our high-precision inspection equipment is integral to maintaining the highest standards of quality. Rigorous inspections ensure that every product we deliver meets our stringent precision criteria, reinforcing our commitment to excellence.
Quality Ensurance
Exemplary Incoming Material Examination - Setting the Benchmark
Every raw material entering our warehouse undergoes an exhaustive, stringent examination process. We meticulously analyze both the chemical composition and inspect the physical properties with precision. Our unwavering commitment to excellence dictates that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This meticulous process ensures only the finest materials are selected for our high-precision medical machining services. Our rigorous authentication process guarantees adherence to the highest standards of integrity and purity, perfectly aligning with our steadfast commitment to quality, ultimately resulting in unparalleled product excellence.
Intensive In-Process Quality Assurance - Perfection in Every Detail
In our precise machining operations, each component is meticulously scrutinized to ensure its dimensions and tolerances not only meet but surpass our exacting specifications. Our diligent, continuous inspection protocol is strategically designed to intercept potential defects at the earliest stage, preventing non-conforming parts from advancing to subsequent phases. This vigilant approach is pivotal in minimizing the risk of substandard goods, ensuring superior quality at each phase of production, and maintaining excellence throughout the entire process, consistently delivering products of the highest caliber.
Strategic First Article Inspection (FAI) - Foundation of Excellence
Our First Article Inspection (FAI) process stands as a foundational strategy, crucial for early identification and resolution of potential production challenges. This proactive approach prevents issues from escalating into mass production. The comprehensive, precise nature of our FAI process is essential in minimizing quality risks, ensuring our products consistently achieve the pinnacle of standards. This dedication to excellence permeates every aspect of the production cycle, guaranteeing that we meet and exceed the highest quality benchmarks, solidifying our reputation for unrivaled quality.
Meticulous Comprehensive Final Inspection - Assurance in Every Detail
Before any product leaves our facility, it undergoes a meticulous and thorough final inspection. This rigorous evaluation encompasses dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless commitment to quality, ensuring every part dispatched from our facility meets our exacting standards. We are steadfast in delivering only the highest quality products to our valued customers, upholding our reputation for excellence and reliability, ensuring customer satisfaction and trust in every delivery.
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)