Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our passion for excellence is unmatched as we elevate craftsmanship into artistry. Our relentless quest for perfection drives us to master the intricate art of precision while leading the charge in manufacturing innovation. Our expertise shines as a beacon of unrivaled precision, spearheading advancements in the prestigious realm of high-end component manufacturing. Pioneering the frontiers of innovation, we set the gold standard in designing and engineering groundbreaking intelligent automation equipment. Our cutting-edge solutions integrate seamlessly across diverse industries, expertly catering to a wide spectrum of precision applications, including:
- Medical and Biotech: We meticulously craft components with unmatched precision and create pioneering solutions that are transforming the future of medical technology, upholding the utmost standards of quality and innovation.
- Semiconductors: We enhance chip production and critical equipment with our indispensable core components, ensuring every detail is marked by precision and reliability.
- New Energy: We play a pivotal role in the sustainable advancement of innovative energy equipment, driving the future of energy technology with our critical contributions.
- Automotive: We deliver essential components that fuel innovation within the automotive sector, supporting the advancement of intelligent and electric vehicles through cutting-edge technology.
Main Products
- We offer exquisitely crafted non-standard customized components, renowned for serving pivotal sectors such as medical, automation, semiconductor, and automotive industries with exceptional precision and distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are strengthened and defined by an exceptional fleet of over 300 of the industry's most cutting-edge machinery units. This elite collection not only ensures but amplifies our ability to uphold an extensive and dynamic array of equipment categories. It allows us to lead with innovation and adaptability, positioning Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. as a pioneer across diverse industrial landscapes. These premium branded machinery units form the solid backbone of our precision-driven manufacturing endeavors. Empowering us to adeptly meet and exceed the multifaceted and demanding machining requirements of a wide array of industries, our extensive capabilities ensure we adhere to the most stringent quality standards. We provide bespoke customization solutions, meticulously tailored to meet the unique requirements of our distinguished clientele, consistently elevating their expectations to new heights with each project undertaken.
- Boasting an illustrious 20-year legacy, we possess a wealth of manufacturing experience that is seamlessly interwoven with profound technical expertise and industry-leading process strengths. This guarantees the delivery of superior quality and groundbreaking innovation. Our enduring expertise empowers us to consistently deliver remarkable products that not only meet but redefine expectations, setting new benchmarks in industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Elevating Precision Beyond Industry Standards
Nestled within our state-of-the-art warehouse, each raw material undergoes a rigorous and thorough scrutiny, establishing a new benchmark for quality excellence. Our comprehensive process delves deeply into chemical compositions and meticulously examines physical characteristics. We uphold the highest standards for our suppliers, demanding a Certificate of Origin and a stamped Declaration of Conformity, ensuring only superior materials are selected for our precision-focused medical machining services. This stringent validation process guarantees material purity and integrity, consistently surpassing our high expectations for precision and quality.
Rigorous In-Process Quality Control: An Unyielding Pursuit of Perfection
Throughout the complex machining process, every component is subject to meticulous inspection, confirming that dimensions and tolerances align precisely with our stringent specifications. Our rigorous inspection protocol remains vigilant, identifying potential imperfections to prevent non-conforming parts from advancing. This diligent oversight significantly minimizes the risk of substandard products, ensuring that exceptional quality is upheld rigorously at every critical stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Foundation of Unmatched Excellence
Our First Article Inspection (FAI) protocol is the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the beginning. This proactive approach ensures that issues are managed before mass production, safeguarding a seamless stream of flawless production. Our comprehensive FAI process is vital for minimizing quality risks, ensuring our products consistently meet the highest standards, reflecting our unwavering commitment to excellence throughout the entire production lifecycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it undergoes a comprehensive and detailed final inspection. This meticulous evaluation assesses dimensions, visual appeal, performance, and specific customer requirements. Our exhaustive inspection process embodies our steadfast commitment to quality, ensuring each dispatched piece meets our rigorous standards, delivering only top-tier products to our esteemed and valued clientele.
Packaging & Shipping
Company Profile
Since its esteemed inception in 2009, tracing its visionary roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has whole-heartedly embraced the mastery of high-precision component machining. Over the past two decades, our unyielding pursuit of innovation and excellence has propelled us to the forefront of precision engineering. Through relentless technical exploration and pioneering solutions, we have positioned ourselves as industry leaders, setting benchmarks with unrivaled excellence. Our company prides itself on an extraordinary wealth of technical expertise, establishing ourselves as market leaders renowned for unmatched excellence. Our exceptional proficiency in precision medical machining services not only achieves the most exacting tolerances but also delivers impeccable surface finishes. This expertise positions us as the premier choice within the medical sector, where our precision and dependability are highly valued and indispensable by healthcare professionals and industry specialists.
With four strategically positioned production bases, situated in the vibrant innovation centers of Shenzhen and Guiyang, and driven by a dedicated team of over 400 highly skilled professionals, Donghui has meticulously engineered a robust, vertically integrated industry chain. This seamless integration of research and development, production, and delivery empowers us to consistently fulfill and surpass the diverse demands of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are equipped to undertake the most intricate and challenging machining projects, reinforcing our prestigious reputation for excellence and 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)