Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just perform our duties; we weave a tapestry of passion and unparalleled expertise in the intricate art and meticulous science of precision manufacturing. We are setting new benchmarks, revolutionizing the standards of excellence across the industry. Our unrivaled expertise illuminates the path in the realm of high-end component manufacturing, charting a course towards unmatched precision and exceptional excellence, while redefining the very benchmarks of the industry. As trailblazers of innovation, we spearhead the design and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly serve a diverse array of industries, catering to a comprehensive range of applications and requirements, including:
- Medical and Biotech: We offer meticulously engineered, high-precision components and pioneering solutions for state-of-the-art medical devices, ensuring unwavering adherence to the highest quality standards.
- Semiconductors: We enhance chip manufacturing and associated machinery by supplying indispensable core components critical to the semiconductor industry's swift progression.
- New Energy: We are actively driving the dynamic and sustainable advancement of next-generation energy equipment, fueling eco-friendly technological innovation.
- Automotive: We deliver essential components that power innovation in the automotive sector, bolstering the evolution of intelligent and electric vehicles with precision and steadfast reliability.
Main Products
- We specialize in creating bespoke non-standard components, extensively catering to the medical, automation, semiconductor, and automotive industries, guaranteeing unrivaled precision and top-tier quality.
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 unmatched 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. Our dedication revolutionizes the field, ensuring that every part we produce is a testament to our engineering brilliance.
- With a rich history spanning two decades, we harness our vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This distinguishes us as true pioneers in precision engineering, consistently delivering top-tier solutions to meet the sophisticated demands of our clients. Our commitment to excellence positions us as a leader, a beacon of innovation and reliability, ensuring every component meets the highest standards.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Shining Testament to Unrivaled Purity and Integrity
Every piece of raw material entering our distinguished warehouse is treated to a comprehensive and meticulous examination, where no element is too small to escape our keen scrutiny. Our rigorous analyses delve deep into the chemical composition and physical attributes, ensuring that only the absolute finest make the cut. Suppliers are mandated to provide a Certificate of Origin and a stamped Declaration of Conformity, symbolizing our relentless pursuit of excellence. Only the purest and most integral materials qualify for our high-precision medical machining services. This authentication process stands as a steadfast sentinel, consistently upholding exceptional quality, and reinforcing our commitment to delivering products of unmatched refinement and precision.
Intensive In-Process Quality Assurance: Mastering Precision Every Step of the Way
Within the rhythmic flow of our precise machining operations, each component is meticulously inspected to not only meet but exceed our ambitious benchmarks for dimensions and tolerances. Our continuous inspection protocol is a symphony of precision, adept at identifying potential discrepancies at their earliest stages, effectively preventing any non-conforming parts from advancing further. This vigilant methodology is crucial in mitigating the risk of substandard products, safeguarding our superior quality at every phase of production, and ensuring our standard of excellence is consistently maintained throughout the entire orchestration of processes.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
Our First Article Inspection (FAI) is a strategic cornerstone, imbued with foresight to discern and address potential production challenges at their inception. This proactive approach acts as an unyielding safeguard, preempting issues from becoming mass production dilemmas. The exhaustive and precise nature of our FAI process is pivotal in mitigating quality risks, ensuring our products consistently achieve the pinnacle of excellence. This unwavering dedication to perfection is intricately woven into every phase of the production journey, 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 unmatched meticulousness and rigor. This stringent process evaluates dimensions, visual allure, performance, and any customer-specific stipulations with extraordinary precision. Our comprehensive inspection serves not only as a testament but as a commitment to our relentless pursuit of quality, ensuring every product exiting our facility stands as a beacon of our exacting standards. Our dedication to delivering only the highest-quality products to our esteemed customers fortifies our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009 and building upon a rich legacy initiated in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of excellence in high-precision component machining. Our journey in the precision engineering landscape is marked by an unwavering commitment to pioneering innovation for over two illustrious decades. With relentless dedication to advanced technical research, we have firmly established ourselves as visionaries and thought leaders, consistently pushing the boundaries of precision engineering. We possess an extraordinary breadth and depth of technical expertise, earning a stellar market reputation that sets us apart as true industry leaders. Our unmatched proficiency in precision medical machining services enables us to achieve the most stringent tolerances and impeccable surface finishes, solidifying our status as the preferred partner in the medical sector for those who demand nothing but the best.
With a strategic network of four production bases strategically positioned across the vibrant cities of Shenzhen and Guiyang, supported by a dedicated team comprising over 400 exceptionally skilled employees, Donghui has crafted a resilient, vertically integrated industry chain. This seamless integration of research and development, production, and delivery ensures that we not only meet but consistently surpass the diverse needs of our clients with outstanding efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to handle the most complex and challenging machining projects, maintaining our esteemed 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)