Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we embody the art of precision manufacturing, where timeless craftsmanship meets cutting-edge innovation to create masterpieces of flawless perfection. Our dedication to quality is unwavering, as each intricately crafted component reflects our commitment to excellence. Leveraging state-of-the-art technology and quality craftsmanship, we set ourselves apart by delivering exceptional results that are synonymous with our name. Our expertise in precision engineering is unmatched, setting the standard for excellence in component manufacturing. With remarkable agility and sophisticated finesse, we ensure exceptional quality in every detail of our work, solidifying our status as industry leaders. As pioneers of innovation, we redefine the gold standard in designing and delivering groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across diverse industries, skillfully addressing the unique challenges of a wide array of applications, including:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components and transformative solutions set unprecedented standards in advanced medical technologies, driving innovation and excellence in the field.
- SemiconductorsWe are at the forefront of enhancing chip fabrication and related equipment, providing critical components that drive extraordinary advancements and efficiency in the semiconductor industry.
- New EnergyOur contribution to next-generation energy equipment is pivotal, advancing the innovative and sustainable development of energy solutions that shape the future landscape.
- AutomotiveWe supply essential components for the automotive industry, powering innovations that drive the evolution of intelligent and electric vehicles, and charting the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence, serving critical sectors like medical, automation, semiconductor, and automotive industries. With unparalleled precision and superior quality, our components are designed to endure and excel over time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are orchestrated with a remarkable fleet of over 300 top-tier machinery units, setting a new benchmark in industrial strength and innovation. This expansive, state-of-the-art collection empowers us to lead with innovation and adaptability, consistently delivering revolutionary solutions that set the industry standard for excellence. We remain unwavering in our commitment to achieving unmatched precision and superior quality. These Top-Tier Branded Our groundbreaking machinery is the foundation of our precision-focused manufacturing, providing the essential infrastructure that ensures our rigorous production standards. Leveraging these state-of-the-art tools, we continuously innovate and enhance our manufacturing processes, achieving extraordinary results time and again. Employing our high-caliber machines, we masterfully tackle complex machining requirements across diverse industries, attaining unparalleled levels of precision and efficiency. Our vast capabilities ensure unwavering commitment to the highest quality standards, delivering bespoke solutions that not only meet but exceed the unique needs of our valued clients, consistently surpassing even their loftiest expectations.
- With a distinguished 20-year legacy, we draw from a wellspring of manufacturing experience blended seamlessly with deep technical prowess and process mastery. This harmonious synergy guarantees not only exceptional quality but also groundbreaking innovation. We empower ourselves to deliver extraordinary products that exceed expectations, setting new standards of excellence within the industry.
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: Dive into a world where innovation and precision reign supreme. Here, we not only meet, but exceed the industry's highest expectations with unparalleled methodologies. As trailblazers in quality assurance, we establish extraordinary benchmarks that resonate through every phase of our production, setting revolutionary standards along the way.
Every raw material entering our state-of-the-art warehouse is subjected to a thorough and exhaustive evaluation process, setting new heights in quality assurance. Our all-encompassing approach includes meticulous chemical composition analysis and rigorous physical property assessments. Suppliers are required to provide a Certificate of Origin and a verified Declaration of Conformity, guaranteeing only the finest materials are used for our cutting-edge medical machining services. This elaborate validation process ensures material integrity and purity, seamlessly aligning with our unwavering dedication to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and a keen eye for detail, we strive for perfection, embodying steadfast dedication and unwavering commitment.
During the intricate machining process, every component undergoes rigorous scrutiny to ensure dimensions and tolerances meet our stringent specifications. This proactive inspection protocol is crucial for identifying and intercepting potential defects, preventing non-conforming parts from advancing. Through this diligent strategy, we significantly mitigate the risk of producing inferior goods, consistently maintaining exceptional quality at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our proactive framework stands as the cornerstone of unparalleled excellence, embodying unmatched precision.
The First Article Inspection (FAI) process is the foundation of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This forward-thinking approach ensures issues are addressed before they escalate into mass production hurdles. Our thorough FAI process is indispensable for minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, reflecting our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate protector of exceptional quality and precision.
Before any product exits our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection exemplifies our steadfast dedication to quality, ensuring every part delivered meets our exacting standards, thereby providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Established in the distinguished year of 2009, and with roots reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. is a shining emblem of innovation in the domain of high-precision component machining. Our illustrious journey, fueled by a fervent dedication to the artful intricacies and rigorous science of engineering, spans over two decades of relentless innovation and precise mastery. We have adeptly carved our legacy as pioneers in precision engineering, ceaselessly pushing the boundaries of technical research and setting groundbreaking industry standards, consistently exceeding expectations with our trailblazing innovation and unparalleled quality. We have meticulously cultivated a remarkable level of technical proficiency, establishing ourselves as industry leaders with a sterling reputation for unmatched excellence. Our unrivaled expertise in precision medical machining services consistently meets the most exacting tolerances, delivering impeccable surface finishes that cement our position as the premier choice in the medical sector. Our precision and steadfast reliability continue to earn unwavering trust and admiration, making us the definitive name for high-quality machining solutions.
With four strategically positioned production bases, located in the dynamic and bustling hubs of Shenzhen and Guiyang, supported by an impressive team of over 400 highly skilled professionals, Donghui has intricately developed a comprehensive, vertically integrated industry chain. This chain seamlessly connects cutting-edge research and development, superior production, and impeccable delivery. Our operations ensure we consistently meet and exceed the diverse needs of our clients with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to undertake the most complex and demanding machining tasks, reinforcing our esteemed 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)