Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere duty; it is a fusion of passion and expertise in the intricate artistry and meticulous science of precision manufacturing. Here, we are not only participants but pioneering leaders, setting new benchmarks in industry standards. Our unparalleled expertise lights the way in the realm of high-end component manufacturing, charting a course for impeccable precision and exceptional excellence, reshaping industry standards with each innovative endeavor. As innovators at the cutting edge, we lead the way in designing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly cater to a diverse array of industries, meeting a broad spectrum of applications and requirements, including:
- Medical and Biotech: Delivering meticulously crafted, high-precision components and forward-thinking solutions for pioneering medical devices, ensuring adherence to the industry's most stringent quality standards.
- Semiconductors: Transforming chip manufacturing and its machinery by providing essential core components crucial to the dynamic growth of the semiconductor industry.
- New Energy: Committed to the vibrant and sustainable progress of next-generation energy equipment, leading eco-friendly technological advancements.
- Automotive: Offering pivotal components that propel innovation within the automotive industry, advancing the development of smart and electric vehicles with unparalleled precision and reliability.
Main Products
- We take pride in crafting bespoke non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors. We deliver unparalleled precision and superior quality in each and every component.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 meticulously curated renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, setting new benchmarks in performance and reliability.
- With a rich history spanning two decades, our expertise marries vast production experience with substantial technical and process prowess to guarantee exceptional quality and forward-thinking innovation. This distinction sets us apart as true pioneers in the precision engineering domain, consistently delivering top-tier solutions to meet the sophisticated demands of our clients with brilliance and foresight.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Benchmark of Purity and Integrity
Every raw material that graces our esteemed warehouse is rigorously scrutinized, with every fine detail observed with precision. This comprehensive examination delves into both chemical and physical qualities, guaranteeing only the finest materials are selected. Suppliers provide a Certificate of Origin and a stamped Declaration of Conformity, demonstrating our relentless quest for superior quality. Only materials reaching the zenith of purity and integrity are chosen for our high-precision medical machining services. This meticulous authentication process acts as our unwavering sentinel, dedicated to upholding exceptional quality and reinforcing our commitment to delivering products of unmatched refinement and precision.
Intensive In-Process Quality Assurance: Mastering Precision at Every Stage
Throughout our harmonious machining operations, every component is meticulously inspected to ensure that dimensions and tolerances not only meet but surpass our high standards. Our continuous inspection practices are a finely-tuned symphony, expertly detecting potential discrepancies at the earliest stages to prevent non-conforming parts from proceeding. This vigilant approach is essential in mitigating the risk of substandard products, safeguarding superior quality at every phase, and ensuring our excellence standard is consistently maintained throughout the entire production orchestrations.
Strategic First Article Inspection (FAI): Ensuring Flawlessness with Precision
Our First Article Inspection (FAI) is a strategic pillar, imbued with foresight to preemptively identify and resolve potential production challenges. This proactive methodology acts as a steadfast shield against issues escalating into large-scale production dilemmas. The thorough and precise FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve unparalleled excellence. This unwavering commitment to perfection is interwoven into every production phase, guaranteeing our standards always ascend to the highest echelons of quality.
Meticulous Comprehensive Final Inspection: The Apex of Perfection Embodied
Before any product departs our premises, it undergoes a final inspection with unparalleled meticulousness and rigor. This thorough process evaluates dimensions, aesthetics, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection is not just a testament but a pledge to our relentless quality pursuit, ensuring every product leaving our facility epitomizes our stringent standards. Our commitment to delivering only the finest products to our valued customers solidifies our reputation for exceptional excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009 and tracing its illustrious origins back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended to prominence as a distinguished leader in the realm of high-precision component machining. With a legacy spanning over two decades, our commitment to pioneering innovation remains unwavering. We have immersed ourselves in technical research, earning our rightful place as trailblazers and thought leaders within the precision engineering sector. We possess an extraordinary depth of technical expertise that crafts a stellar market reputation. This truly sets us apart as industry leaders. Our unmatched proficiency in precision medical machining services enables us to consistently achieve exceptionally tight tolerances and impeccably flawless surface finishes, establishing us as the top choice within the medical sector.
With four strategically located production bases in the vibrant cities of Shenzhen and Guiyang, powered by a dedicated team of over 400 highly skilled professionals, Donghui has crafted a robust, vertically integrated industry chain. This seamless integration of research and development, production, and delivery ensures that we meet and exceed the diverse needs of our clients with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our esteemed reputation for excellence and innovative leadership.
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)