Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we meticulously adhere to the pinnacle of industry standards. Our steadfast commitment to both the artistry and scientific excellence of precision manufacturing ensures that we deliver products that embody perfection. Our devotion to unparalleled quality craftsmanship and cutting-edge technological capabilities distinguishes us, guaranteeing exceptional outcomes in every component we produce. Our unrivaled expertise paves the path in the domain of precision engineering. With extraordinary skill and cultivated finesse, we lead the prestigious field of superior component manufacturing, assuring excellence in every aspect. As trailblazers of innovation, we establish the gold standard in crafting and delivering revolutionary intelligent automation equipment. Our avant-garde solutions are meticulously integrated across a wide array of industries, fulfilling diverse needs in numerous applications including:
- Medical and Biotech: Offering impeccably crafted, ultra-high-precision components along with groundbreaking solutions, specifically designed for the cutting edge of advanced medical technologies.
- Semiconductors: Enhancing chip fabrication and associated machinery with vital, critical components that drive extraordinary advancements and improved efficiency.
- New Energy: Contributing fundamentally to accelerating innovative and sustainable developments in next-generation energy equipment, shaping the future landscape of energy solutions.
- Automotive: Supplying indispensable components that spearhead advancements within the automotive sector, propelling the evolution of intelligent and electric vehicles.
Main Products
- Our meticulously crafted non-standard customized components represent the zenith of quality. Serving crucial sectors like medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior durability that withstand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: An Unrivaled Benchmark of Industrial Prowess Our operations are electrified by a formidable assembly of over 300 of the industry's most advanced and sophisticated machinery units. This expansive and diverse repertoire of state-of-the-art equipment ensures we consistently maintain a commanding presence at the cutting edge of innovation and adaptability. By persistently delivering groundbreaking solutions, we set the industry standard for excellence, leading the charge in achieving unparalleled precision and superior quality. These Top-Tier Branded Machines: The Bedrock of Precision Our cutting-edge machinery units are the backbone of our precision-focused manufacturing process, forming the essential infrastructure that supports our rigorous production standards. With these state-of-the-art tools, we refine and perfect our manufacturing strategies to consistently deliver exceptional results, ensuring each product is a masterpiece of engineering. Leveraging our high-caliber machines, we masterfully execute complex and demanding machining requirements across an extensive array of industries, achieving an unmatched level of precision and efficiency. Our expansive capabilities guarantee unwavering adherence to the highest quality benchmarks, while delivering personalized customization meticulously crafted to not only meet but exceed the distinct needs of our esteemed clients, far surpassing their loftiest expectations.
- With an illustrious 20-year legacy, we draw upon a vast wellspring of manufacturing experience seamlessly integrated with comprehensive technical expertise and process acumen. This harmonious blend assures not just superior quality but also trailblazing innovation, empowering us to consistently deliver extraordinary products that not only exceed expectations but also set new standards of excellence in the industry.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality and Precision
High-Precision Inspection Equipment: Guaranteeing Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are at the cutting edge of innovation and precision, exceeding industry norms with unparalleled methodologies. We craft the pinnacle of quality benchmarks, setting new standards with every advance.
Every raw material entering our state-of-the-art warehouse is meticulously evaluated, setting unprecedented standards in quality assurance. Our exhaustive approach encompasses comprehensive chemical composition analysis and precise physical property assessment. We mandate our suppliers to furnish a Certificate of Origin along with a verified Declaration of Conformity to ensure only top-tier materials are utilized in our advanced semiconductor CNC machining services. This meticulous validation process is central to safeguarding the integrity and purity of materials, perfectly aligning with our unwavering commitment to superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance and unrivaled attention to detail fuel our pursuit of perfection with unwavering focus.
Throughout the intricate machining journey, each component is scrupulously examined to confirm dimensions and tolerances adhere precisely to our rigorous specifications. This ongoing inspection protocol is vital for proactively identifying and intercepting potential defects, preventing the progression of any non-conforming parts. This diligent strategy significantly mitigates the risk of producing substandard goods, ensuring that exceptional quality is consistently upheld across every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the cornerstone of impeccable excellence and unmatched precision.
Our First Article Inspection (FAI) process is the bedrock of our quality strategy, adeptly identifying and resolving potential production challenges right from the start. This proactive approach ensures issues are averted before they escalate into mass production hurdles. This all-encompassing FAI process is crucial in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, embodying our unwavering commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of unparalleled quality and precision.
Before any product departs our facility, it undergoes an exhaustive and detailed final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection underscores our unwavering dedication to quality, ensuring every part delivered meets our exacting standards, thereby providing our esteemed customers with the highest quality products.
Packaging & Shipping
Company Profile
Founded in the illustrious year of 2009, with roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. shines as a beacon of excellence in the intricate realm of high-precision component machining. Our distinguished journey, born from a profound passion for engineering's art and science, spans over two decades of relentless innovation and precision mastery. As pioneers in precision engineering, we've expertly carved our niche, consistently pushing the frontiers of technical research and setting new industry benchmarks. We have honed an unparalleled level of technical expertise, distinguishing ourselves as market leaders with an esteemed reputation for exemplary excellence. Our unmatched proficiency in precision medical machining services rigorously adheres to exacting tolerances, ensuring impeccably flawless surface finishes. This solidifies our standing as the premier choice in the medical sector, where our precision and reliability continue to earn unwavering trust and admiration.
With four strategically positioned production hubs, in the vibrant and flourishing centers of Shenzhen and Guiyang, powered by an inspiring team of over 400 highly skilled employees, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain that seamlessly fuses research and development, top-tier production, and impeccable delivery. This ensures that we not only meet but consistently exceed the diverse needs of our clients with unparalleled efficiency and extraordinary quality. Our state-of-the-art facilities are fully equipped to conquer the most complex and demanding machining tasks, reinforcing our prestigious 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)