Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not merely fulfilling a duty; our work is a passionate pursuit of excellence in the fine art and exacting science of precision manufacturing. Our extraordinary expertise is a beacon in the high-end component fabrication industry, illuminating the journey towards unparalleled precision and meticulous craftsmanship. As trailblazers in the development and production of revolutionary intelligent automation equipment, our advanced solutions serve a wide array of industries. We effectively meet the diverse needs of various applications, including:
- Medical and Biotech: We deliver meticulously crafted high-precision components and innovative solutions for cutting-edge medical devices, maintaining the highest echelons of quality standards.
- Semiconductors: We empower chip production and its associated equipment by providing essential core components, integral to the industry's advancement and success.
- New Energy: We actively contribute to the dynamic and sustainable growth of innovative energy equipment, advancing eco-friendly technological development.
- Automotive: We supply crucial components that drive innovation across the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We specialize in crafting bespoke non-standard components, catering extensively to the medical, automation, semiconductor, and automotive sectors, ensuring unparalleled precision and exceptional 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, 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
Exemplary Examination of Incoming Materials
Each raw material that makes its way into our warehouse is subject to an exhaustive and rigorous examination process. Our meticulous analyses dive deep into evaluating the chemical composition paired with a thorough inspection of the physical properties. Our commitment to unparalleled quality is unwavering, demanding that every supplier furnishes a Certificate of Origin and a stamped Declaration of Conformity. This ensures only the highest caliber materials are handpicked for our precision-driven medical machining services. Our rigorous authentication process guarantees these materials meet the utmost standards of integrity and purity, aligning seamlessly with our steadfast quest for excellence.
Intensive In-Process Quality Assurance Protocol
Amidst our intricate and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but exceed our exacting specifications. Our diligent and continuous inspection protocol is strategically engineered to intercept potential defects at the earliest stages, thus averting non-conforming parts from advancing to subsequent stages. This vigilant approach is critical in minimizing the risk of subpar goods, ensuring superlative quality at each production phase, and maintaining excellence throughout the entire process continuum.
Strategic Mastery in First Article Inspection (FAI)
Our First Article Inspection (FAI) process stands as a cornerstone strategy, pivotal in identifying and resolving potential production challenges at an initial stage. This proactive methodology is instrumental in forestalling issues from escalating into mass production dilemmas. The thorough and precise nature of our FAI process is crucial in mitigating quality risks, guaranteeing our products consistently reach the epitome of standards. This dedication to transcendent excellence permeates the entire production cycle, ensuring we consistently meet and surpass the highest quality benchmarks.
Meticulous and Comprehensive Final Inspection
Before any product makes its journey from our facility, it undergoes a meticulous and thorough final inspection. This critical process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific stipulations. Our comprehensive inspection procedure serves as a testament to our relentless pursuit of quality, ensuring each part dispatched from our facility meets our rigorous standards. We are unwavering in our mission to deliver only the highest quality products to our esteemed clients, 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 luminary in the realm of 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)