Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to perfecting the craft of precision manufacturing. Where time-honored craftsmanship intersects with cutting-edge innovation, we herald a new era of unparalleled excellence. Our relentless quest for perfection ensures that every creation is a tribute to impeccable artistry. By harnessing the latest technologies and adhering to our unwavering standards of quality, we distinguish ourselves, delivering exceptional, intricately engineered components that represent the pinnacle of precision and artistry. With unmatched expertise in precision engineering, we establish the gold standard for component excellence. Our remarkable agility and sophisticated finesse ensure unparalleled quality across every facet of our operations, solidifying our position as pioneers and leaders in the industry. As trailblazers of innovation, we redefine benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into diverse industries, masterfully addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions lead the vanguard of advanced medical technologies, setting unprecedented standards of excellence in the field.
- SemiconductorsSupplying critical, essential components, we drive advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation in the semiconductor industry.
- New EnergyWe play a pivotal role in the innovative and sustainable evolution of next-generation energy equipment, crucially contributing to the future landscape of energy solutions.
- AutomotiveProviding indispensable components, we lead innovation in the automotive industry. Our contributions advance 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 vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that stands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are propelled by a truly remarkable fleet consisting of over 300 of the most advanced machinery units the industry has to offer. This extensive and cutting-edge arsenal not only guarantees our leadership in both innovation and adaptability but also positions us as pioneers in delivering groundbreaking solutions. By consistently setting the benchmark for excellence, we are on a relentless quest for unprecedented precision and unsurpassed quality. These Top-Tier Branded Our pioneering machinery units serve as the essential foundation of our precision-centric manufacturing process, forming the critical infrastructure that upholds our unwavering production standards. Through these state-of-the-art tools, we are constantly refining and enhancing our manufacturing methods, enabling us to consistently achieve outstanding results with precision and excellence. Through the utilization of our high-caliber machines, we meticulously undertake complex and demanding machining tasks across a plethora of industries, achieving an unmatched level of precision and efficiency. Our vast capabilities allow us to strictly adhere to the highest quality standards while offering bespoke customization that not only meets but consistently surpasses the unique needs of our valued clients, exceeding even their most ambitious expectations.
- Celebrating a prestigious 20-year legacy, we draw upon a wealth of manufacturing experience intricately interwoven with profound technical expertise and mastery of processes. This harmonious synergy ensures not only exceptional quality but also paves the way for groundbreaking innovation. We empower ourselves to deliver extraordinary products that not only exceed expectations but also establish new 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 a fast-paced world where innovation and precision are paramount, we transcend industry norms with unparalleled methodologies. We not only meet but redefine the industry's towering expectations, setting groundbreaking standards that echo throughout every phase of our production journey, establishing a foundation of superior quality benchmarks.
Every raw material entering our cutting-edge warehouse undergoes a rigorous evaluation, setting a benchmark in quality assurance. Our exhaustive approach includes comprehensive chemical composition analysis and stringent physical property assessments. Suppliers must provide a Certificate of Origin with a verified Declaration of Conformity, ensuring the highest quality materials are used in our advanced medical machining services. This meticulous validation process fortifies the integrity and purity of materials, aligning perfectly with our steadfast commitment to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering commitment to detail, we pursue perfection with uncompromising dedication. This meticulous process guarantees our standards of excellence are consistently met and frequently surpassed, ensuring the pinnacle of quality.
Throughout the intricate machining process, each component undergoes rigorous scrutiny to ensure dimensions and tolerances align precisely with our exacting specifications. This proactive inspection protocol is crucial in identifying and intercepting potential defects, preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is upheld at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework underpins immaculate excellence, embodying unparalleled precision and thoroughness, exemplifying our commitment to superior quality from the outset.
The First Article Inspection (FAI) process is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges early on. This proactive approach ensures issues are mitigated before they become production hurdles. Our comprehensive FAI process is essential in minimizing quality risks, guaranteeing our products consistently achieve the highest standards, and reflecting our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate safeguard for exceptional quality and precision, ensuring the delivery of perfection, and reinforcing our promise of excellence.
Before any product leaves our facility, it is subjected to a meticulous and detailed comprehensive final inspection. This rigorous evaluation includes assessments of dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part meets our exacting standards and provides our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Established in the landmark year of 2009, yet with roots deeply entrenched since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of excellence in the realm of high-precision component machining. For over two decades, our illustrious journey has been driven by an unyielding fervor for the exquisite art and rigorous science of engineering. As pioneers in precision engineering, we have consistently led the way in technical research, setting groundbreaking standards that surpass industry expectations with unmatched innovation and quality. We have meticulously honed an exceptional level of technical expertise, establishing ourselves as the market leader with a distinguished reputation for unparalleled excellence. Our precision medical machining services are unrivaled, consistently meeting the most stringent tolerances and delivering flawless surface finishes. This commitment solidifies our status as the preferred choice in the medical sector, with our precision and steadfast reliability earning us lasting trust and acclaim as the leading name for superior machining solutions.
With four strategically situated production facilities, nestled within the dynamic and bustling locales of Shenzhen and Guiyang, supported by a formidable team of over 400 exceptionally skilled specialists, Donghui has expertly constructed a comprehensive, vertically integrated industry chain. This chain seamlessly connects cutting-edge research and development, outstanding production, and impeccable delivery. Our operations ensure we consistently meet and exceed our clients' diverse demands with exceptional efficiency and uncompromising quality. Our state-of-the-art facilities are meticulously designed to tackle the most intricate and challenging machining tasks, reinforcing our prestigious 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)