Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere duty; it is inspired by a passionate devotion to the finest craftmanship and the exacting science of precision manufacturing. Our unrivaled expertise stands as a beacon in the sphere of high-end component fabrication, illuminating the journey towards meticulous precision. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions cater to a multitude of industries, efficiently addressing a wide range of applications, including:
- Medical and Biotech: Delivering impeccably engineered, high-precision components and groundbreaking solutions for cutting-edge medical devices, consistently upholding the highest quality standards.
- Semiconductors: Enhancing chip production and its related equipment by providing essential core components that are vital to the industry's triumph.
- New Energy: Committed to the robust and sustainable advancement of cutting-edge energy equipment, propelling eco-friendly technological innovation.
- Automotive: Supplying crucial components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in creating non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, ensuring unrivaled 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. Our array of machinery is not just a collection, but a testament to our commitment to excellence, offering unmatched versatility and adaptability.
- 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 dedication places us at the forefront of precision engineering, distinguishing us from our competitors and reaffirming our role as industry pioneers.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every raw material that enters our meticulously maintained warehouse undergoes an exhaustive, rigorous examination process that sets a benchmark for excellence. Our detailed analyses delve deep into the chemical composition and scrutinize the physical properties with unparalleled precision. We hold a staunch and unwavering pledge to quality, mandating that each supplier presents a Certificate of Origin alongside a stamped Declaration of Conformity. This process guarantees that only the crème de la crème of materials are handpicked for our high-precision medical machining services. Our stringent verification process ensures that these materials boast the highest levels of integrity and purity, resonating powerfully with our steadfast dedication to exceptional quality.
Intensive In-Process Quality Assurance
In the heart of our complex and precise machining operations, every single component is subjected to meticulous scrutiny, ensuring its dimensions and tolerances not only meet but proudly surpass our stringent specifications. Our diligent, continuous inspection protocol is ingeniously crafted to identify and intercept potential defects at the earliest opportunity, effectively preventing non-conforming parts from advancing to subsequent stages. This vigilant, proactive approach is crucial in reducing the risk of substandard goods, guaranteeing superior quality at each juncture of production, and upholding excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our robust First Article Inspection (FAI) process stands as a foundational pillar in our quality assurance strategy, crucial for early identification and resolution of potential production challenges. This proactive stance effectively thwarts issues before they can escalate into full-scale production hurdles. The comprehensive precision of our FAI process is vital in minimizing quality risks, ensuring our products consistently rise to meet the zenith of industry standards. This unwavering dedication to excellence permeates every facet of the production cycle, assuring that we not only meet but continuously exceed the loftiest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product makes its way out of our facility, it is subjected to a meticulous, all-encompassing final inspection. This process rigorously assesses dimensions, visual appearance, performance, and any customer-specific requirements, leaving no stone unturned. Our comprehensive inspection process stands as a testament to our relentless dedication to quality, ensuring that every part dispatched from our premises aligns with our exacting standards. We are unwavering in our commitment to delivering only the highest quality products to our esteemed customers, diligently upholding our esteemed reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its bold inception in 2009, rooted deep in its founding year of 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has flourished as a beacon of expertise in the realm of high-precision basic component machining. Our unyielding commitment to innovation over the past two decades has propelled us into the forefront of technical research, firmly establishing us as pioneers in precision engineering. We have accumulated an extraordinary wealth of technical acumen, earning a dazzling market reputation. This sets us apart as an industry trailblazer. Our unmatched capabilities in precision medical machining services consistently achieve exceptionally tight tolerances and flawless surface finishes-qualities that make us the undisputed choice in the medical sector.
With four cutting-edge production bases nestled in the vibrant hubs of Shenzhen and Guiyang, supported by a dedicated and skilled workforce of over 400 accomplished employees, Donghui has meticulously crafted a formidable and vertically integrated industry chain. This chain seamlessly interlaces research and development, production, and delivery, ensuring that we consistently meet and exceed our customers' diverse needs with outstanding efficiency and matchless quality. Our state-of-the-art facilities are primed to tackle the most intricate and challenging machining tasks, sustaining 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)