Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our mission is not just a duty; it is a passionate journey to perfect the craft of precision manufacturing. Driven by an enthusiastic pursuit of excellence, we ensure every product stands as a beacon of our commitment to unparalleled quality and cutting-edge innovation. Our unrivaled expertise shines brightly in the realm of high-end component fabrication. We lead the charge in achieving meticulous precision and faultless perfection, securing our status as trailblazers in the industry. We spearhead the creation and production of revolutionary intelligent automation equipment. Our cutting-edge solutions cater to a vast range of industries, deftly addressing diverse applications, such as:
- Medical and Biotech Sector: Delivering exquisitely engineered high-precision components and pioneering solutions for advanced medical devices, ensuring adherence to the pinnacle of quality and innovation.
- Semiconductors Industry: Enhancing the chip production sector and its supporting equipment by providing essential core components crucial for the flourishing success of the industry, propelling progress and innovation.
- New Energy Innovations: Actively engaged in the vibrant and sustainable development of groundbreaking energy equipment, leading the way in eco-friendly technological advances with a commitment to a greener future.
- Automotive Industry: Supplying vital components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles, and nurturing industry growth and transformation.
Core Products
- We excel in crafting bespoke non-standard components, extensively serving sectors such as medical, automation, semiconductor, and automotive. We promise unmatched precision and outstanding quality in every product, embodying our pursuit of excellence.
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 unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with a level of precision and efficiency that is truly unmatched. Our fleet's versatility and exceptional capability ensure that no machining challenge is too daunting, making us the go-to solution for industries seeking excellence.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This ensures not only exceptional quality but also innovative thinking, setting us apart as pioneering leaders in the realm of precision engineering. Our commitment to quality and innovation has solidified our reputation as an industry vanguard.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unrivaled Assessment of Incoming Materials
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every piece of raw material entering our warehouse embarks on a journey through an exhaustive and meticulous examination that sets a new benchmark in precision and thoroughness. Our comprehensive analyses delve into every conceivable detail, from scrutinizing chemical compositions to thoroughly inspecting physical properties. With an unwavering commitment to quality, we demand each supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the finest materials are selected for our high-precision medical machining services. Our stringent authentication process guarantees the highest integrity and purity of materials, perfectly mirroring our steadfast dedication to excellence and superiority.
Meticulous Quality Assurance During the Process
As we navigate our intricate machining operations, each component undergoes intense scrutiny, ensuring dimensions and tolerances not merely meet but surpass our rigorous specifications. Our meticulously crafted inspection protocol is designed to identify potential defects at the earliest opportunity, thereby preventing non-conforming parts from advancing further in the process. This vigilant, proactive approach significantly reduces the risk of substandard outputs, ensuring unparalleled quality at every phase and sustaining excellence throughout the entire production journey.
First Article Inspection (FAI) with Strategic Precision
Our First Article Inspection (FAI) process serves as a cornerstone strategy, indispensable in identifying and resolving potential production challenges from the very start. This proactive method ensures any issues are tackled well before mass production. The precision of our FAI process is crucial in mitigating quality risks, consistently elevating our products to the pinnacle of the highest standards. Our unwavering commitment to excellence permeates every aspect of the production cycle, ensuring we consistently surpass even the loftiest quality benchmarks.
Thorough and Comprehensive Final Quality Inspection
Before any product departs our facility, it undergoes a thorough and comprehensive final inspection. This rigorous process evaluates dimensions, visual appearance, and performance while meticulously adhering to any customer-specific requirements. Our exhaustive inspection regimen is a testament to our relentless pursuit of quality, ensuring every part leaving our facility aligns seamlessly with our exacting standards. We remain unwavering in our dedication to delivering only the finest products to our esteemed customers, continually reinforcing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its vibrant inception in 2009, and with roots deeply embedded since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a luminary in the domain of high-precision component machining. With an unwavering dedication to pioneering innovation over the past two decades, we have immersed ourselves in advanced technical research, establishing a legacy as true trailblazers in precision engineering. At Donghui, we have cultivated an extraordinary reservoir of technical acumen, earning a stellar market reputation that distinctly positions us as an industry leader. Our unparalleled proficiency in precision medical machining services consistently delivers incredibly tight tolerances and impeccably flawless surface finishes, making us the preferred partner in the exacting medical sector.
With an impressive array of resources, we proudly operate four strategically located production bases, thriving within the energetic and bustling centers of Shenzhen and Guiyang, supported by our devoted and skilled workforce of over 400 highly trained employees. Donghui has meticulously developed a robust and vertically integrated industry chain. This seamless network expertly intertwines research and development, production, and delivery, ensuring that we not only meet but consistently surpass the diverse needs and expectations of our esteemed customers with exceptional efficiency and unmatched quality. Our cutting-edge facilities are exquisitely equipped to tackle the most complex and demanding machining tasks, consistently upholding our reputation for excellence and innovative breakthroughs.
Captivating 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)