Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are powered by an unwavering passion and fervor for the exquisite craft of precision manufacturing. Our commitment runs deeper than obligation, thriving at the intersection of art and the meticulous science of high-precision fabrication. Our unparalleled expertise shines brightly in the realm of high-end component creation, charting a course through the complexities of meticulous precision with unwavering guidance and exceptional skill. We stand at the forefront of innovation, leading the charge in the development and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a diverse range of industries, effectively catering to a variety of applications such as:
- Medical and Biotech: We deliver meticulously engineered, high-precision components and innovative solutions for cutting-edge medical devices, consistently upholding the industry's most stringent quality standards.
- Semiconductors: As a cornerstone of the semiconductor industry, we empower chip production and its essential equipment by providing indispensable core components, which are crucial to the industry's ongoing success.
- New Energy: We actively engage in the vigorous and sustainable advancement of pioneering energy equipment, driving the momentum of eco-friendly technological progress.
- Automotive: Our vital components spark innovation within the automotive sector, significantly contributing to the evolution of smart and electric vehicles, paving the way for the future of mobility.
Main Products
- We are specialists in the fabrication of non-standard customized components, extensively serving critical industries such as medical, automation, semiconductor, and automotive. Our precision and quality are unmatched, ensuring excellence at every stage.
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 Scrutiny of Incoming Materials
Every raw material that graces our warehouse is subjected to an exhaustive and meticulous examination process. We dive deep into chemical composition analysis and conduct thorough inspections of physical properties. Our insistence on quality knows no bounds, as we demand every supplier provide a Certificate of Origin coupled with a stamped Declaration of Conformity. This rigorous process ensures that only the finest, hand-picked materials become part of our high-precision medical machining services. Through this unwavering authentication process, we guarantee each material adheres to the highest standards of integrity and purity, perfectly upholding our steadfast commitment to quality.
Rigorous In-Process Quality Assurance
In our realm of intricate and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but triumphantly exceed our exacting standards. Our continuous and diligent inspection protocol is strategically crafted to intercept and eliminate potential defects early in the process, preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is essential in curbing the risk of substandard goods, ensuring superior quality at every phase of production, and sustaining excellence throughout the entire journey.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) embodies a strategic cornerstone, crucial for pinpointing and resolving potential production challenges at the earliest possible stage. This proactive approach is pivotal in preventing issues from escalating into mass production. The comprehensive and precise nature of our FAI process is indispensable for minimizing quality risks, ensuring our products consistently reach the apex of standards. This unwavering dedication to excellence permeates every facet of the production cycle, safeguarding that we meet and exceed the loftiest quality benchmarks.
Thorough and Meticulous Final Inspection Process
Before any product departs from our esteemed facility, it undergoes a meticulous and comprehensive final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements, leaving no stone unturned. Our exhaustive inspection procedure is a testament to our relentless commitment to quality, ensuring every part dispatched from our facility meets our exacting standards. We unwaveringly deliver only the highest caliber products to our esteemed customers, upholding our reputation for unparalleled excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, and with its foundational roots reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has steadfastly risen as a leader of innovation and excellence in the field of high-precision basic component machining. With an unyielding dedication to pioneering technical research, we stand at the forefront of precision engineering, breaking new ground in this dynamic industry over the past two decades. We have accumulated a treasure trove of technical expertise that distinguishes us as a beacon of leadership in our industry. Our mastery in precision medical machining services is unrivaled, consistently delivering products with incredibly tight tolerances and flawless surface finishes, thus making us the trusted partner and preferred choice within the competitive medical sector.
With four strategically positioned production bases in the vibrant cities of Shenzhen and Guiyang, supported by a committed workforce exceeding 400 highly skilled professionals, Donghui has developed a robust, vertically integrated industry chain. This seamlessly integrates research and development, production, and delivery, enabling us to not only meet but exceed the diverse and evolving needs of our clients with exceptional efficiency and unmatched quality. Our cutting-edge facilities are primed to tackle the most complex and demanding machining tasks, sustaining our esteemed 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)