Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately driven by more than mere obligation. Our journey is a dynamic blend of passion and technical prowess, excelling in the intricate art and science of precision manufacturing. Here, we are not merely participants; we are the vanguards, setting new benchmarks of excellence and redefining industry standards with our innovative spirit. Our unparalleled expertise lights the way in the realm of high-end component manufacturing, creating pathways for impeccable precision and extraordinary excellence. With each endeavor, we are not just meeting industry benchmarks, but we are reshaping and elevating them. As pioneers of innovation, we are leading the charge in designing and crafting groundbreaking intelligent automation equipment. Our state-of-the-art solutions are seamlessly integrated across a diverse array of industries, meeting a wide spectrum of applications and demands, such as:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and cutting-edge solutions tailored for avant-garde medical devices, ensuring adherence to the most stringent quality standards in the medical industry.
- Semiconductors: Transforming chip manufacturing and its equipment landscape by providing essential core components that are critical to the rapid advancement of the semiconductor sector.
- New Energy: Actively participating in the dynamic and sustainable progress of next-generation energy equipment, leading eco-friendly technological innovations forward.
- Automotive: Offering vital components that fuel innovation in the automotive industry, promoting the evolution of smart and electric vehicles with precision and reliability that is second to none.
Main Products
- We take immense pride in crafting bespoke non-standard components, extensively catering to sectors such as medical, automation, semiconductor, and automotive. Each piece we deliver epitomizes unrivaled precision and exceptional quality.
Why choose us
Core Advantages
- An Unmatched Fleet of Exceptional Machinery Our operations are a shining example of innovation and forward-thinking, proudly featuring an impressive collection of over 300 state-of-the-art machines. Each one is a testament to the pinnacle of engineering excellence and precision. globally acclaimed high-precision machining toolsOur avant-garde machinery enables us to expertly manage a wide spectrum of equipment categories. This unique capability allows us to precisely meet intricate machining demands across numerous industries, delivering unmatched precision and efficiency. We are not just setting new benchmarks; we are revolutionizing the standards of industry excellence with unmatched reliability.
- With a prestigious legacy spanning two decades, we harness extensive production experience along with profound technical and process expertise. This powerful combination guarantees unparalleled quality and innovative foresight, establishing us as true pioneers in precision engineering. Our premium solutions consistently address the sophisticated needs of our clients, solidifying our reputation as leaders in cutting-edge innovation.
State-of-the-Art, Advanced Production Equipment
High-Precision, Sophisticated Inspection Equipment
Quality Ensurance
Unparalleled Scrutiny of Incoming Materials: Ensuring Supreme Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., the pursuit of perfection begins with a meticulous and thorough evaluation of every raw material that enters our esteemed facility. Our dedicated team conducts a comprehensive analysis, diligently examining both chemical and physical properties to ensure the selection of the highest quality materials essential for our precision CNC machining parts. We require suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity, underscoring our unwavering commitment to quality. Only materials that exemplify ultimate purity and integrity are accepted, vital to our high-precision medical machining services. Our rigorous verification process serves as a vigilant sentinel, steadfastly maintaining exceptional quality standards at every juncture, bolstering our resolve to deliver products that represent unparalleled precision and excellence.
In-Process Quality Assurance: Mastering Precision at Every Stage
Amidst the seamless orchestration of our precision machining operations, each component is subjected to rigorous scrutiny to guarantee that dimensions and tolerances not merely meet but surpass our elevated standards. Our ongoing inspection procedures operate like a finely-tuned symphony, expertly detecting variances at the earliest possible moment to avert the progression of non-compliant parts. This proactive vigilance is essential in reducing the risks associated with substandard products, preserving superior quality throughout every stage of production, and assuring that our standard of excellence is unwaveringly upheld across the entire manufacturing process.
Strategic First Article Inspection (FAI): Anticipating Perfection with Precision
Our First Article Inspection (FAI) functions as a strategic linchpin, equipped with the insight to identify and resolve potential production issues from the outset. This anticipatory strategy acts as a steadfast protector, preventing complications from escalating into widespread production dilemmas. The meticulous accuracy of our FAI process is crucial in reducing quality risks, ensuring our products consistently reach the pinnacle of excellence. This steadfast commitment to perfection is intricately woven into every phase of the manufacturing journey, ensuring our standards consistently surpass the apex of quality.
Comprehensive Final Inspection: Reaching the Summit of Perfection
Before any product departs our facility, it undergoes a final inspection process characterized by unmatched meticulousness and rigor. This thorough evaluation assesses dimensions, visual aesthetics, performance, and any specific customer requirements with exceptional accuracy. Our comprehensive inspection stands as a testament to our relentless pursuit of quality, ensuring that every product leaving our facility is an exemplar of our stringent standards. Our unwavering dedication to delivering only the highest quality products to our esteemed customers solidifies our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009 and drawing from a rich legacy since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. shines brightly as a beacon of excellence in the realm of high-precision component machining. For over twenty years, our dedication to transformative innovation has driven us to explore the frontiers of technical research, firmly establishing our place as trailblazers and visionaries in the precision engineering landscape. We possess an unparalleled level of technical expertise, cultivating a stellar reputation in the market that distinguishes us as industry leaders. Our unmatched proficiency in precision medical machining services allows us to consistently achieve extremely tight tolerances and exquisitely flawless surface finishes, reinforcing our status as the foremost choice for the medical sector.
With four strategically positioned production bases in the thriving cities of Shenzhen and Guiyang, backed by a devoted workforce of over 400 exceptionally skilled professionals, Donghui has developed a powerful, vertically integrated industry chain that seamlessly merges research and development, production, and delivery. This ensures that we not only meet but exceed the diverse needs of our clients with unmatched efficiency and superior quality. Our state-of-the-art facilities are designed to handle the most complex and challenging machining tasks, sustaining our esteemed reputation for excellence and pioneering leadership.
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)