Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment far exceeds a mere responsibility; it is fueled by an unwavering passion for the sublime art and exacting science of precision manufacturing. Our unparalleled expertise stands as a beacon in the elite world of high-end component crafting, lighting the way to exacting precision and superior craftsmanship. We are at the forefront of developing and producing pioneering intelligent automation equipment. Our state-of-the-art solutions span numerous industries, meeting the needs of diverse applications, including:
- Medical and Biotech Industries: Delivering precisely engineered high-precision components and visionary solutions for cutting-edge medical devices, consistently maintaining the highest standards of quality.
- Semiconductor Sector: Driving chip manufacturing and its associated machinery by supplying vital core components essential for the industry's triumph.
- Innovative New Energy Sector: Contributing to the dynamic and sustainable progression of cutting-edge energy equipment, advancing green technological innovation.
- Automotive Industry: Providing indispensable components that propel innovation within the automotive realm, supporting the development of smart and electric vehicles.
Core Product Offerings
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unparalleled precision and premium quality.
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, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. leverages vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. We proudly stand as pioneers in the realm of precision engineering, consistently setting new standards with our cutting-edge expertise.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Benchmark Incoming Material Examination
Every piece of raw material that enters our facility undergoes an exhaustive and rigorous examination. Our meticulous analyses entail a comprehensive evaluation of the chemical composition and an intense scrutiny of the physical characteristics. We maintain an unwavering commitment to excellence by demanding each supplier provide a Certificate of Origin along with a stamped Declaration of Conformity. This process ensures that only the finest materials are used in our high-precision medical machining endeavors. Our rigorous authentication guarantees that these materials adhere to the highest benchmarks of integrity and purity, perfectly aligning with our steadfast commitment to quality.
Intensive In-Process Quality Supervision
Throughout our intricate machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and continuous inspection protocol is expertly crafted to detect potential discrepancies early on, effectively preventing non-conforming parts from advancing to the next stages. This conscientious approach is crucial in mitigating the risk of substandard items, ensuring supreme quality at each production phase, and maintaining unparalleled excellence across the entire process.
Strategic First Article Inspection (FAI) Protocol
Our First Article Inspection (FAI) strategy acts as a cornerstone for identifying and resolving potential production challenges at an early phase. This proactive approach is pivotal in preventing issues from expanding into mass production. The thorough and precise nature of our FAI process is vital in minimizing quality risks and ensuring our products consistently reach the highest standards. This commitment to excellence permeates every aspect of the production cycle, guaranteeing that we meet and exceed the highest quality thresholds.
Meticulous Comprehensive Final Assessment
Before any product exits our facility, it undergoes a meticulous and thorough final assessment. This process rigorously evaluates dimensions, visual aesthetics, performance, and any customer-specific requirements. Our comprehensive inspection process demonstrates our relentless pursuit of quality, ensuring every part dispatched from our facility meets our exacting standards. We are committed to delivering only the best 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 unparalleled expertise in high-precision basic component machining. With an unwavering dedication to groundbreaking innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers and leaders in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a true leader in the industry. Our capabilities in precision medical machining services remain unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice and trusted partner in the medical sector.
With four strategically located production bases, in the bustling industrial 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 seamless chain effortlessly weaves together research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are fully equipped to handle the most intricate and demanding machining tasks, maintaining our reputation for excellence and groundbreaking innovation in the field.
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)