Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere responsibility; it is fueled by an ardent passion for the artful craft and exacting science of precision manufacturing. Our unparalleled expertise stands as a beacon in the field of high-end component fabrication, guiding the way to impeccable precision. We are at the forefront of developing and producing innovative intelligent automation equipment. Our state-of-the-art solutions cater to a vast array of industries, effectively meeting diverse applications, including:
- Medical and Biotech: Delivering expertly crafted high-precision components and groundbreaking solutions for cutting-edge medical devices, maintaining the highest quality standards.
- Semiconductors: Empowering the semiconductor industry by supplying essential core components pivotal to the success of chip production and its related equipment.
- New Energy: Actively contributing to the robust and sustainable advancement of innovative energy equipment, promoting eco-friendly technological progress.
- Automotive: Supplying indispensable components that drive innovation within the automotive industry, supporting the evolution of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, extensively supporting the medical, automation, semiconductor, and automotive industries, with a steadfast commitment to unparalleled precision and exceptional quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase a remarkable and diverse collection of over 300 world-renowned machines, enabling us to expertly cater to a vast array of equipment categories. This exceptional capability empowers us to meet the complex machining demands of various industries with outstanding precision and efficiency, ensuring that we deliver nothing short of excellence.
- With a rich history spanning two decades, we harness extensive production experience coupled with significant technical and process expertise. This guarantees exceptional quality and cutting-edge innovation, distinguishing us as trailblazers in the field of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Thorough Incoming Material Examination Excellence
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our rigorous examination process for each raw material starts the moment it enters our warehouse. A comprehensive analysis unfolds, assessing the chemical composition and conducting an in-depth inspection of physical properties. We uphold our uncompromising commitment to quality by mandating that all suppliers provide a Certificate of Origin and a stamped Declaration of Conformity. This scrupulous selection process ensures the finest materials are chosen, propelling our Advanced CNC Machining Parts for Medical Devices with Tight Tolerances to new heights. The integrity and purity of our materials reflect our steadfast dedication to maintaining exceptional quality standards.
Robust In-Process Quality Assurance
Throughout our sophisticated and precise machining processes, each component undergoes rigorous scrutiny to confirm not just adherence, but a surpassing of our stringent specifications. Our robust, continuous inspection protocol is ingeniously structured to detect and address potential defects early, thereby ensuring non-conforming parts are halted before advancing to further stages. This vigilant scrutiny is crucial in minimizing the risk of inferior quality, securing unparalleled excellence at every production phase, and upholding superior standards throughout our operations.
Comprehensive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) serves as a strategic cornerstone in our production, instrumental in identifying and resolving potential challenges before they impact mass production. This anticipatory approach is pivotal in averting issues, championing our commitment to quality risk mitigation. The precision and thoroughness of our FAI process are vital in ensuring our products continually reach the zenith of industry standards. This unwavering dedication to excellence pervades every production phase, guaranteeing we consistently surpass even the highest quality expectations.
Exacting Comprehensive Final Inspection
As a final testament to our dedication to quality, every product undergoes a thorough and meticulous final inspection prior to departure from our facility. This rigorous evaluation covers dimensions, visual appearance, performance, and any client-specific criteria. Our comprehensive inspection protocol epitomizes our relentless pursuit of excellence, ensuring each component leaving our doors aligns with our stringent standards. Our promise of delivering only superior quality products fortifies our esteemed reputation for excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, tracing back to its foundational roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen as a beacon of unmatched expertise in the realm of high-precision basic component machining. With an unequivocal commitment to innovation over the past two decades, we have immersed ourselves in advanced technical research, solidifying our status as trailblazers in the field of precision engineering. We have cultivated an extensive reservoir of technical prowess, securing an impeccable market reputation that distinguishes us as an industry leader. Our proficiency in precision medical machining services is unparalleled, consistently achieving exceptionally tight tolerances and flawless surface finishes. This makes us the preferred partner in the medical sector, where precision is paramount.
With four strategically positioned production bases in the vibrant centers of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled employees, Donghui has developed a powerful and vertically integrated industry chain. This chain seamlessly integrates research and development, production, and delivery processes, guaranteeing that we consistently meet and exceed the diverse needs of our customers with unmatched efficiency and superior quality. Our cutting-edge facilities are meticulously equipped to tackle the most intricate and demanding machining tasks, maintaining our esteemed reputation for excellence and pioneering 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)