Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our passion for excellence harmoniously marries with our unparalleled expertise, creating a tapestry of intricate artistry and meticulous science in precision manufacturing. As industry visionaries, we redefine and elevate standards, leading with unwavering commitment and setting benchmarks that others aspire to reach. Our expertise shines brilliantly in the high-end component manufacturing landscape, where precision transcends mere accuracy to become an art form. Each endeavor embodies a commitment to extraordinary excellence, consistently reshaping and elevating industry benchmarks. As pioneers in the landscape of innovation, we lead the charge in crafting revolutionary intelligent automation equipment. Our cutting-edge solutions are not just versatile but seamlessly integrate across a diverse array of industries, perfectly aligning with a broad spectrum of applications and requirements including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions for advanced medical devices, we ensure adherence to the industry's most stringent quality standards with unwavering dedication.
- Semiconductors: Transforming the semiconductor industry with our revolutionary core components, essential for the rapid advancements in chip manufacturing and its machinery, driving growth at the industry's cutting edge.
- New Energy: Actively engaging in the dynamic evolution of next-generation energy equipment, we are at the forefront of fostering eco-friendly technological innovations, championing sustainability.
- Automotive: Providing vital components that are the heart of innovation in the automotive industry, we support the evolution of smart and electric vehicles, ensuring unmatched precision and reliability.
Main Products
- At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we take immense pride in crafting bespoke non-standard components. Our expertise extends across the medical, automation, semiconductor, and automotive sectors, delivering unparalleled precision and exceptional quality in every piece we create.
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 unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency. We set new benchmarks in performance and reliability, proving ourselves as industry leaders.
- With a rich history spanning two decades, we harness our vast production experience alongside substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, distinguishing us as pioneers in the realm of precision engineering. We consistently deliver top-tier solutions designed to meet the sophisticated demands of our clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Showcase of Unmatched Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every raw material that graces our esteemed warehouse undergoes a thorough and meticulous examination, leaving no stone unturned in our quest for perfection. This rigorous scrutiny delves into the depths of both chemical and physical attributes, ensuring only materials of the highest caliber are accepted. Our suppliers must furnish a Certificate of Origin and a stamped Declaration of Conformity, echoing our unwavering commitment to excellence. Only materials reaching the zenith of purity and integrity are deemed fit for our high-precision medical machining services. This stringent authentication process stands as a vigilant sentinel, unwavering in its dedication to upholding exceptional quality, fortifying our promise to deliver products of consummate refinement and precision.
Intensive In-Process Quality Assurance: Mastering Precision at Every Stage
In the midst of our finely-tuned machining cadence, every component undergoes scrupulous examination to ensure dimensions and tolerances not only meet but exceed our lofty benchmarks. Our perpetual inspection protocol is a meticulously orchestrated symphony, adept at discerning potential discrepancies at inception, thus forestalling any non-conforming parts from progressing. This vigilant methodology is pivotal in mitigating the risk of substandard products, safeguarding superior quality at each juncture, and ensuring our benchmark of excellence is consistently maintained throughout the entire production process.
Strategic First Article Inspection (FAI): Anticipating Precision with Foresight
Our First Article Inspection (FAI) operates as a strategic cornerstone, imbued with foresight to preemptively identify and resolve potential production challenges from the outset. This proactive stance acts as an unwavering guard, preventing issues from escalating into large-scale production dilemmas. The exhaustive precision of our FAI is crucial in minimizing quality risks, guaranteeing our products consistently achieve the summit of excellence. This steadfast dedication to perfection is intricately woven into every segment of the production journey, ensuring our standards consistently transcend the highest tiers of quality.
Meticulous Comprehensive Final Inspection: The Pinnacle of Perfection Embodied
Before any product departs from our facility, it undergoes a final inspection characterized by unparalleled meticulousness and rigor. This exhaustive process evaluates dimensions, visual allure, performance, and specific customer stipulations with extraordinary precision. Our comprehensive inspection stands not only as a testament but as a pledge to our relentless pursuit of quality, ensuring every product that exits is a beacon of our stringent standards. Our dedication to delivering only superlative products to our esteemed clientele reinforces our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, tracing its illustrious origins back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen to prominence as a distinguished leader in the realm of high-precision component machining. For over twenty years, propelled by an unwavering commitment to pioneering innovation, we have immersed ourselves in technical research, earning our place as trailblazers and thought leaders within the precision engineering sector. We proudly showcase an extraordinary depth of technical expertise, crafting a stellar market reputation that truly sets us apart as industry visionaries. Our exceptional proficiency in precision medical machining services empowers us to consistently achieve extremely tight tolerances and impeccably flawless surface finishes, solidifying our status as the top choice within the medical sector.
With four strategically situated production bases in the vibrant cities of Shenzhen and Guiyang, powered by a dedicated team of over 400 highly skilled and committed employees, Donghui has meticulously built a robust, vertically integrated industry chain that seamlessly merges research and development, production, and delivery. This ensures that we consistently 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 complex 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)