Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fervently devoted to mastering the artistry of precision manufacturing. Where age-old craftsmanship meets state-of-the-art innovation, we usher in an era of unmatched brilliance. Our unwavering pursuit of perfection ensures that each product is a testament to flawless artistry. By leveraging cutting-edge technologies and maintaining our steadfast commitment to quality, we differentiate ourselves by delivering extraordinary, intricately designed components that exemplify the zenith of precision and artistry. With unrivaled proficiency in precision engineering, we set the benchmark for component excellence. Our remarkable dexterity and refined sophistication guarantee superior quality in every aspect of our operations, reinforcing our status as trailblazers and industry leaders. As pioneers of innovation, we redefine the standards in the design and implementation of revolutionary intelligent automation equipment. Our innovative solutions seamlessly integrate across various industries, adeptly addressing the unique challenges of different applications, including:
- Medical and BiotechOur precisely engineered, ultra-high-precision components and transformative solutions spearhead the forefront of advanced medical technologies, establishing unparalleled excellence in the field.
- SemiconductorsWith our indispensable and essential components, we lead the charge in advancing chip fabrication and related equipment, greatly enhancing efficiency and innovation within the semiconductor sector.
- New EnergyWe play a crucial role in the innovative and sustainable transformation of next-generation energy equipment, significantly contributing to the future landscape of energy solutions.
- AutomotiveBy providing essential components, we drive innovation within the automotive industry. Our contributions propel the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components are the epitome of excellence. Serving crucial sectors such as medical, automation, semiconductor, and automotive industries, we deliver unsurpassed precision and superior quality that withstands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are driven by the powerhouse of over 300 of the industry's most cutting-edge machinery units. This vast and innovative fleet thrusts us to the pinnacle of technological advancement, securing our role as leaders in adaptability and precision. By consistently delivering revolutionary solutions, we define the industry benchmark for excellence, perpetually striving for unmatched precision and exemplary quality. These Top-Tier Branded Our state-of-the-art machinery units are the backbone of our precision-focused manufacturing operations, forming the fundamental infrastructure that sustains our steadfast production standards. With these cutting-edge tools, we continually enhance and elevate our manufacturing processes to achieve consistently superior results. Equipped with our top-tier machines, we masterfully execute intricate and challenging machining tasks across diverse industries, achieving unrivaled precision and efficiency. Our extensive capabilities ensure unwavering adherence to the most rigorous quality standards while offering bespoke customization that not only meets but consistently exceeds the unique expectations of our esteemed clients, surpassing even their highest aspirations.
- Celebrating a distinguished 20-year legacy, we draw upon a vast reservoir of manufacturing expertise intricately fused with deep technical knowledge and process mastery. This harmonious synergy guarantees not only superior quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and redefine industry standards of excellence.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: Within the vibrant realm of innovation where precision is king, we set the bar higher by transcending industry norms with our unparalleled methodologies. We're proud to lay the groundwork for world-class quality benchmarks, crafting revolutionary standards that touch every facet of our production journey. Our unyielding commitment to excellence manifests in each carefully crafted step, ensuring our materials are as sophisticated as the cutting-edge methods we employ.
Every raw material entering our state-of-the-art warehouse undergoes a rigorous examination, pioneering new levels in quality assurance. Our approach includes detailed chemical composition analysis and stringent assessments of physical properties. Suppliers must present a Certificate of Origin alongside a verified Declaration of Conformity, ensuring only the finest materials enhance our cutting-edge medical machining services. This painstaking validation process strengthens the integrity of materials, flawlessly aligning with our unwavering dedication to unrivaled quality.
Unyielding In-Process Quality Control: Our unwavering commitment to meticulous craftsmanship and relentless vigilance drives us to achieve perfection with steadfast dedication. This meticulous process ensures our standard of excellence is consistently upheld-and frequently surpassed-at every stage of production.
Throughout the intricate machining journey, each component is subject to exhaustive scrutiny to ensure dimensions and tolerances are precisely aligned with our stringent specifications. This proactive inspection protocol is essential in identifying and intercepting potential defects, effectively preventing any non-conforming parts from advancing. Through this diligent approach, we significantly diminish the risk of producing substandard goods, consistently maintaining exceptional quality throughout every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventive framework is the foundation of immaculate excellence, showcasing unparalleled precision and thoroughness.
The First Article Inspection (FAI) process stands as a cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the start. This proactive method ensures that issues are addressed before escalating into production obstacles. Our comprehensive FAI process is pivotal in minimizing quality risks, guaranteeing our products consistently reach the pinnacle of standards and reflecting our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring the delivery of perfection.
Before any product departs from our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation includes checks on dimensions, visual appeal, performance, and adherence to customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part aligns with our exacting standards, providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, though our origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon of innovation in the refined realm of high-precision component machining. Our illustrious journey has been driven by an unwavering passion for the nuanced artistry and exacting science of engineering, spanning more than two decades of relentless innovation and extraordinary precision. We have indelibly etched our name as pioneers in precision engineering, ceaselessly pushing the boundaries of technical research and setting groundbreaking industry standards, consistently surpassing expectations in both innovation and unparalleled quality. We have meticulously cultivated an exceptional level of technical prowess, establishing ourselves as market leaders with an esteemed reputation for unparalleled excellence. Our mastery in precision medical machining services is unmatched, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This unwavering dedication solidifies our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and regard, making us the foremost authority for superior machining solutions.
With four strategically positioned production facilities, in the dynamic and bustling centers of Shenzhen and Guiyang, and supported by a remarkable team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain effortlessly connects cutting-edge research and development, superior production, and flawless delivery. Our operations ensure we consistently meet and exceed the diverse demands of our clients with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are exquisitely designed to handle the most complex and demanding machining tasks, reinforcing our esteemed reputation for excellence and trailblazing 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)