Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately devoted to elevating the art of precision manufacturing. In a harmonious blend of traditional craftsmanship and state-of-the-art innovation, we usher in a new epoch of unmatched excellence. Our unwavering dedication to perfection ensures that each creation is a testament to flawless artistry. By leveraging the most advanced technologies and adhering to uncompromising quality standards, we set ourselves apart, delivering extraordinary, intricately designed components that epitomize the apex of precision and craftsmanship. With unrivaled expertise in precision engineering, we set the benchmark for component excellence. Our remarkable agility and sophisticated finesse guarantee unparalleled quality in every facet of our operations, cementing our status as pioneers and industry leaders. As vanguards of innovation, we elevate benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into a multitude of industries, skillfully addressing the distinct challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions spearhead advanced medical technologies, establishing unprecedented standards of excellence in the field.
- SemiconductorsSupplying indispensable components, we propel advancements in chip fabrication and allied equipment, significantly boosting efficiency and innovation within the semiconductor industry.
- New EnergyWe play an instrumental role in the innovative and sustainable evolution of next-generation energy equipment, significantly shaping the future landscape of energy solutions.
- AutomotiveProviding vital components, we spearhead innovation in the automotive industry. Our contributions enhance the development of intelligent and electric vehicles, defining the future of mobility.
Main Products
- Our expertly crafted non-standard customized components represent the pinnacle of excellence. Serving critical sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality that endures over time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by an extraordinary fleet of more than 300 of the industry's most sophisticated and advanced machinery units. This extensive and innovative assembly propels us to the forefront of innovation, ensuring our leadership in adaptability and precision. By continuously delivering groundbreaking solutions, we set the industry standard for excellence, perpetually aiming for unparalleled precision and exceptional quality. These Top-Tier Branded Our pioneering machinery units are the cornerstone of our precision-centric manufacturing operations, forming the essential infrastructure that upholds our steadfast production standards. With these state-of-the-art tools, we perpetually refine and elevate our manufacturing processes to achieve consistently superior results. With our top-tier machines, we flawlessly execute intricate and challenging machining tasks across a multitude of industries, achieving unmatched precision and efficiency. Our expansive capabilities ensure unwavering adherence to the most stringent quality standards while providing bespoke customization that not only fulfills but consistently surpasses the unique expectations of our valued clients, exceeding their highest aspirations.
- Celebrating an esteemed 20-year legacy, we draw from an abundant reservoir of manufacturing expertise intricately woven with profound technical knowledge and process mastery. This seamless synergy ensures not only superior quality but also revolutionary innovation. We empower ourselves to consistently deliver extraordinary products that surpass 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: In the dynamic world of cutting-edge innovation, where precision reigns supreme, we go beyond mere industry standards with our unmatched methodologies. We proudly set the stage for unparalleled quality benchmarks, forging revolutionary standards that permeate every phase of our production journey. Our unwavering commitment to excellence resonates through each step, ensuring our materials are as refined as our advanced methods.
Every raw material arriving at our state-of-the-art warehouse is subjected to a rigorous evaluation process that redefines quality assurance. Our comprehensive approach includes meticulous analysis of chemical composition along with stringent assessments of physical properties. Suppliers are required to provide a Certificate of Origin, accompanied by a verified Declaration of Conformity, to guarantee the use of only premier materials in our cutting-edge medical machining services. This exacting validation process solidifies the integrity of materials, perfectly aligning with our steadfast dedication to superior quality.
Uncompromising In-Process Quality Control: Driven by meticulous attention to detail and relentless vigilance, our pursuit of perfection is unwavering. This scrupulous process guarantees that our standard of excellence is consistently met-and frequently exceeded-at every stage of production.
Throughout the complex machining process, each component undergoes exhaustive scrutiny to guarantee that dimensions and tolerances are precisely aligned with our stringent specifications. This proactive inspection protocol is crucial for identifying and intercepting potential defects, effectively preventing any non-conforming parts from proceeding. Through this diligent approach, we significantly mitigate the risk of producing substandard goods, consistently maintaining exceptional quality throughout the entire production process.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, exemplifying unmatched precision and thoroughness.
The First Article Inspection (FAI) process is integral to our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive methodology ensures that issues are addressed before they escalate into production obstacles. Our comprehensive FAI process is critical in minimizing quality risks, ensuring our products consistently reach the zenith 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 leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation includes assessments of dimensions, visual appeal, performance, and specific customer requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part aligns with our exacting standards, offering our esteemed customers products of the highest caliber.
Packaging & Shipping
Company Profile
Founded in the illustrious year of 2009, yet rooted in a rich heritage beginning in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of excellence in the specialized realm of high-precision component machining. Our illustrious journey, driven by an unwavering dedication to the sophisticated art and meticulous science of engineering, spans over two decades of relentless innovation and unparalleled precision. We have carved a distinguished reputation as trailblazers in precision engineering, continuously propelling technical research forward and setting revolutionary standards in the industry, consistently exceeding expectations with pioneering innovation and unmatched quality. We have meticulously honed an extraordinary caliber of technical expertise, establishing ourselves as market leaders with a prestigious reputation for unmatched excellence. Our proficiency in precision medical machining services is unrivaled, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This steadfast dedication solidifies our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and respect, securing our position as the leading name for premier machining solutions.
With four strategically situated production facilities, in the dynamic and bustling centers of Shenzhen and Guiyang, and bolstered by an impressive team of over 400 highly skilled specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain that seamlessly unites cutting-edge research and development, superior production, and impeccable delivery. Our operations ensure we consistently meet and surpass the diverse needs of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are meticulously designed to tackle the most complex and demanding machining tasks, reinforcing our esteemed reputation for excellence and groundbreaking 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)