Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication to the art of precision manufacturing is a testament to our pursuit of perfection. Where traditional craftsmanship meets the forefront of innovation, we usher in a new era of unmatched excellence. Our ceaseless drive for flawlessness ensures that each product we craft is a masterful homage to superior artistry. By leveraging cutting-edge technologies and maintaining our steadfast commitment to quality, we set ourselves apart, offering exceptional, intricately designed components that exemplify the zenith of precision and craftsmanship. With unparalleled expertise in precision engineering, we define the gold standard for component excellence. Our exceptional agility and refined sophistication guarantee unparalleled quality in every aspect of our operations, cementing our status as industry pioneers and leaders. As innovators in the field, we revolutionize benchmarks in the conception and delivery of cutting-edge intelligent automation equipment. Our pioneering solutions seamlessly integrate across various industries, skillfully addressing the unique challenges posed by diverse applications, such as:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components, and transformative innovations spearhead the forefront of advanced medical technologies, setting new, unparalleled standards of excellence within the field.
- SemiconductorsWith our critical and indispensable components, we are leaders in driving forward advancements in chip fabrication and related equipment, significantly enhancing efficiency and catalyzing innovation within the semiconductor industry.
- New EnergyWe play a vital role in the innovative and sustainable transformation of next-generation energy equipment, making significant contributions to the future framework of energy solutions.
- AutomotiveProviding crucial components, we lead innovation in the automotive industry. Our contributions propel the development of intelligent and electric vehicles, shaping the future trajectory of mobility.
Main Products
- Our expertly crafted non-standard customized components are the epitome of excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and supreme quality that endures.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess and Ingenuity Our operations are propelled by an awe-inspiring fleet of over 300 of the industry's most sophisticated and avant-garde machinery units. This extensive, cutting-edge assembly catapults us to the pinnacle of innovation, fortifying our leadership in adaptability and precision. By seamlessly delivering groundbreaking solutions, we set an unrivaled industry benchmark for excellence, continuously striving for unmatched precision and extraordinary quality. These Top-Tier Branded Machines: The Backbone of Our Precision Mastery Our pioneering machinery units form the bedrock of our precision-driven manufacturing operations, establishing the essential infrastructure that anchors our unwavering production standards. Armed with these state-of-the-art tools, we perpetually refine and elevate our manufacturing processes, consistently achieving superior results that define excellence. With our top-tier machines, we flawlessly execute intricate and demanding machining tasks across an expansive array of industries, achieving unparalleled precision and efficiency. Our extensive capabilities guarantee unwavering adherence to the most stringent quality standards, while offering bespoke customization that not only fulfills but consistently surpasses the unique expectations of our valued clients, elevating their aspirations to new heights.
- Celebrating a distinguished 20-year legacy, we harness an abundant reservoir of manufacturing expertise intricately woven with profound technical knowledge and process mastery. This seamless synergy not only ensures superior quality but also sparks revolutionary innovation. We empower ourselves to consistently deliver extraordinary products that transcend expectations and redefine industry standards of excellence.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality and Innovation
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency in Every Detail
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In the dynamic realm of innovation, where precision is king, our methodologies elevate the industry to new heights. We lay the groundwork for world-class quality, setting revolutionary standards that permeate every facet of our production. Our steadfast commitment to excellence is reflected in each methodically crafted step, ensuring our materials are as sophisticated as the methods we deploy.
Every raw material ushered into our state-of-the-art facility undergoes thorough evaluation, setting unparalleled benchmarks in quality assurance. Our holistic approach encompasses detailed chemical composition analysis and stringent physical property assessments. Suppliers are mandated to provide a Certificate of Origin alongside a verified Declaration of Conformity, ensuring our avant-garde medical machining services utilize only the finest materials. This rigorous validation process secures material integrity, perfectly synchronizing with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With an unwavering dedication to meticulous detail and vigilant precision, we strive for perfection. This exhaustive process ensures our standard of excellence is not only met but often surpassed at every production phase.
Throughout the intricate machining process, each component is subject to detailed scrutiny to ensure dimensions and tolerances strictly adhere to our rigorous specifications. This proactive inspection protocol is essential in identifying and intercepting potential defects, effectively preventing any non-conforming parts from progressing. Through this diligent approach, we substantially reduce the risk of producing substandard goods, consistently upholding exceptional quality at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of exceptional precision and thoroughness.
The First Article Inspection (FAI) process is a pillar of our quality strategy, expertly identifying and resolving potential production challenges at the outset. This proactive approach ensures issues are addressed before evolving into production obstacles. Our extensive FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the highest standards and reflecting our unwavering commitment to excellence throughout the production continuum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate vanguard of exceptional quality and precision, guaranteeing the delivery of perfection.
Before departing our facility, every product undergoes a meticulous and detailed comprehensive final inspection. This thorough evaluation involves dimension checks, visual appeal assessments, performance testing, and conformity to customer-specific requirements. This exhaustive inspection underscores our steadfast dedication to quality, ensuring every delivered component meets our stringent standards, offering our valued customers products of the highest echelon.
Packaging & Shipping
Company Profile
Established in 2009, with roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a luminary in the sphere of high-precision component machining. For over two decades, our journey has been fueled by a profound devotion to the art and science of engineering. We consistently push the envelope in precision engineering, setting new benchmarks in technical research and achieving groundbreaking industry standards in innovation and unmatched quality. We have meticulously honed our technical expertise, positioning ourselves as market leaders renowned for our exceptional quality. Our unmatched proficiency in precision medical machining ensures the tightest tolerances and immaculate surface finishes, establishing us as the top choice in the medical field. This steadfast commitment to excellence has earned us enduring trust, cementing our position as the go-to authority for premier machining solutions.
With four strategically positioned production facilities, in the vibrant hubs of Shenzhen and Guiyang, supported by an impressive team of over 400 highly skilled professionals, Donghui has ingeniously developed a comprehensive, vertically integrated industry chain. This chain seamlessly links cutting-edge R&D, superior production, and impeccable delivery. Our operations consistently exceed our clients' diverse demands with exceptional efficiency and quality. Our state-of-the-art facilities are exquisitely equipped to tackle the most complex machining challenges, enhancing our 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)