Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment to excellence is more than a mere duty; it is fueled by an enthusiastic passion for the art and scientific mastery of precision manufacturing. Our unrivaled expertise serves as a beacon in the landscape of high-end component fabrication, shedding light on the journey towards meticulous precision and perfection. We are at the forefront of pioneering the development and production of revolutionary intelligent automation equipment. Our avant-garde solutions cater to an extensive array of industries, effectively addressing a diverse range of applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and innovative solutions for the most advanced medical devices, steadfastly upholding the highest quality standards.
- Semiconductors: Enhancing chip production and its related equipment by supplying indispensable core components that are essential to the industry's triumph.
- New Energy: Actively participating in the robust and sustainable progression of groundbreaking energy equipment, advancing eco-friendly technological innovations.
- Automotive: Supplying pivotal components that drive innovation within the automotive industry, contributing to the advancement of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, ensuring unparalleled precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an awe-inspiring collection of over 300 renowned machines, empowering us to expertly cater to an extensive array of equipment categories. This remarkable capability allows us to precisely and efficiently meet the intricate machining demands across a diverse range of industries, ensuring unparalleled accuracy and effectiveness.
- With an impressive legacy spanning two decades, we harness our extensive production expertise coupled with robust technical and procedural skills, ensuring exceptional quality and pioneering innovation. This dedication distinguishes us as trailblazers in the world of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Each raw material entering our warehouse undergoes a comprehensive and thorough examination process. Our detailed analyses include evaluating the chemical composition and meticulously inspecting the physical properties. We staunchly uphold a commitment to quality by mandating every supplier to furnish a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the most exceptional materials are selected for use in our premier high-precision medical machining services. Our rigorous authentication process guarantees that these materials adhere to the highest standards of integrity and purity, perfectly mirroring our unwavering commitment to quality.
Intensive In-Process Quality Assurance
Within our intricate and precise machining operations, every component is meticulously scrutinized to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent ongoing inspection protocol is strategically designed to intercept potential defects at the earliest possible stage, thereby preventing any non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at each phase of production, and maintaining an unwavering standard of excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a cornerstone strategy crucial for identifying and resolving potential production challenges early on. This proactive approach prevents issues from escalating into mass production. The comprehensive and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently rise to the pinnacle of standards. This dedication to excellence permeates every aspect of the production cycle, ensuring that we meet and exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product leaves our facility, it undergoes a meticulous and exhaustive final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process stands as a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are unwavering in delivering only the highest 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 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 unmatched technical expertise, earning a stellar market reputation that sets us apart as the undisputed leader in the industry. Our unrivaled capabilities in precision medical machining services consistently achieve incredibly tight tolerances and impeccable surface finishes, positioning us as the preferred choice in the competitive 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 meticulously crafted a robust and vertically integrated industry chain. This seamless chain effortlessly weaves together research and development, production, and delivery, ensuring that we not only meet but consistently exceed the diverse needs of our valued customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are exquisitely 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)