Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we surpass industry norms with our unwavering devotion to excellence in the refined art and rigorous science of precision manufacturing. Our company is not just meeting but reshaping the benchmarks, paving the way for cutting-edge advancements and establishing new standards across the industry. Our unparalleled proficiency stands as a beacon in the field of high-end component manufacturing, setting a new standard for impeccable precision and remarkable excellence. We are not only achieving but redefining the industry's elevated benchmarks. As pioneers in innovation, we lead the charge in crafting and developing revolutionary intelligent automation equipment. Our state-of-the-art solutions effortlessly cater to a diverse range of industries, addressing numerous applications and distinct demands, including:
- Medical and Biotech: Providing meticulously crafted, high-precision components and innovative solutions for cutting-edge medical devices, ensuring adherence to the most stringent quality standards in the sector.
- Semiconductors: Enhancing the field of chip production and its equipment by delivering essential core components, vital for the innovative and dynamic nature of the semiconductor market.
- New Energy: Playing a key role in the vibrant and sustainable progress of next-generation energy solutions, advocating environmentally friendly technological innovations.
- Automotive: Delivering critical components that propel advancements in the automotive sector, supporting the growth of intelligent and electric vehicles with unrivaled precision and dependable reliability.
Main Products
- We excel in creating customized, non-standard components, extensively serving the medical, automation, semiconductor, and automotive industries. Our commitment ensures extraordinary precision and exceptional quality at every stage.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 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. We are setting groundbreaking benchmarks in performance and reliability, and our extensive fleet allows us to tailor impeccable solutions that not only meet but consistently exceed industry standards, significantly elevating operational excellence.
- With a rich history spanning two decades, we harness our vast production experience combined with substantial technical and process prowess to guarantee exceptional quality and forward-thinking innovation. This sets us apart as true pioneers in the realm of precision engineering, consistently delivering top-tier solutions designed to meet the sophisticated demands of our clients. Our unwavering commitment to excellence and continuous improvement ensures that we not only meet but surpass the expectations of our discerning clientele, always staying ahead of industry trends.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Testament to Unrivaled Purity and Integrity
Every raw material entering our distinguished warehouse undergoes a meticulous examination, ensuring no detail escapes our discerning eyes. Our exhaustive analyses delve into intricate chemical and physical attributes, guaranteeing that only the finest selections meet our standards. Suppliers provide Certificates of Origin and stamped Declarations of Conformity, underscoring our relentless pursuit of excellence. Only materials epitomizing purity and integrity are deemed suitable for our high-precision medical machining services. This authentication process steadfastly upholds exceptional quality at every juncture, reinforcing our commitment to delivering products of unmatched refinement and precision.
Intensive In-Process Quality Assurance: Mastering Precision at Every Stage
Amidst the harmonious rhythm of our precise machining operations, each component receives meticulous scrutiny to ensure dimensions and tolerances not only meet but exceed our ambitious benchmarks. Our continuous inspection protocol is a masterfully orchestrated symphony, adept at identifying potential discrepancies at their earliest stage, effectively preventing any non-conforming parts from advancing. This vigilant methodology mitigates substandard product risks, safeguarding superior quality at every production phase and ensuring our standard of excellence is consistently upheld throughout the entire process.
Strategic First Article Inspection (FAI): Anticipating Perfection with Precision
Our First Article Inspection (FAI) is a strategic cornerstone, imbued with foresight to identify and address potential production challenges at their inception. This proactive approach serves as an unyielding safeguard, preempting issues from escalating into mass production dilemmas. The exhaustive and precise nature of our FAI process is crucial in mitigating quality risks, ensuring our products consistently achieve peak excellence. This unwavering dedication to perfection is intricately woven into every production phase, ensuring our standards consistently transcend the highest echelons of quality.
Meticulous Comprehensive Final Inspection: Embodying the Pinnacle of Perfection
Before any product leaves our facility, it undergoes a final inspection of unparalleled meticulousness and rigor. This stringent process evaluates dimensions, visual allure, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection is not only a testament but a commitment to our relentless pursuit of quality, ensuring every product exiting our facility embodies our exacting standards. Our dedication to delivering only the highest quality products to our esteemed customers fortifies our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009 and meticulously crafted upon the solid foundation laid in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has swiftly ascended as a distinguished pioneer in high-precision component machining. With an unwavering commitment to innovation and excellence, our firm has been a beacon of advancement for over two decades, extensively engaging in technical research. This dedication has firmly established us as both pioneers and thought leaders in the field of precision engineering. We have cultivated an exceptional level of technical prowess, earning a stellar market reputation that distinguishes us as industry leaders. Our unmatched expertise in precision medical machining services empowers us to achieve extraordinarily tight tolerances and flawless surface finishes consistently, positioning us as the go-to choice within the medical sector.
With four strategically located production facilities in the dynamic regions of Shenzhen and Guiyang, backed by a dedicated team exceeding 400 highly skilled professionals, Donghui has firmly established a robust, vertically integrated industry network that seamlessly interconnects research and development, production, and delivery. This comprehensive integration ensures that we consistently meet and surpass diverse client expectations with remarkable efficiency and unparalleled quality. Our state-of-the-art facilities are exceptionally equipped to tackle the most complex and demanding machining challenges, upholding our esteemed reputation for excellence and leading-edge 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)