Discover the epitome of precision engineering with our OEM custom medical CNC machining, turning, and lathing services, meticulously crafted for the most exacting medical applications. Our unmatched machining expertise ensures every single component adheres to the highest standards, with tolerances that reach an extraordinary precision level of +/- 0.003mm. Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as your trusted partner, committed to delivering unparalleled quality and reliability in every piece, tailored to meet your distinct specifications with absolute perfection.
Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we go beyond just fulfilling our duties; we embark on a passionate journey towards achieving unparalleled artistry and the meticulous science that defines precision manufacturing. With an unwavering commitment to perfection, we elevate every component into a masterpiece of sophisticated excellence. Our exceptional expertise shines brilliantly, illuminating the realm of high-end component fabrication. We lead the way, blazing a trail towards unmatched precision, setting the benchmark for outstanding excellence. As pioneers at the cutting-edge of creating and producing transformative intelligent automation equipment, our groundbreaking solutions cater to a diverse array of industries. We address varied application needs with remarkable precision and effectiveness, including:
- Medical and Biotech: Transforming Healthcare with Precision: Delivering meticulously crafted, high-precision components and state-of-the-art solutions for groundbreaking medical devices. We consistently uphold the supreme quality standards synonymous with our reputation for excellence.
- Semiconductors: Driving Technological Breakthroughs: We empower the semiconductor industry by supplying essential core components that are crucial for chip production and related equipment, ensuring seamless operational success and sparking innovation.
- New Energy: Pioneering Sustainable Innovation: Actively engaging in the sustainable advancement of cutting-edge energy equipment, we propel the development of eco-conscious technological innovations.
- Automotive: Accelerating the Future of Mobility: Supplying vital components that fuel innovation in the automotive sector, we significantly contribute to the evolution of smart and electric vehicles.
Main Products: Excellence in Customization
- We specialize in the creation of bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unsurpassed precision and superior quality.
Why choose us
https://donghuiprecision.en.made-in-china.com/contact-info.html
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, empowering us with the capacity to expertly cater to a vast array of equipment categories. This unparalleled capability enables us to address the detailed and demanding machining requirements of multiple industries with remarkable precision and efficiency.
- With a distinguished heritage that spans an impressive two decades, we blend extensive production expertise with outstanding technical and process knowledge. Our unwavering commitment assures not only superior quality but also pioneering innovation. This steadfast dedication positions us as pioneers in the prestigious world of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Evaluation
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every raw material that graces the threshold of our esteemed facility undergoes a diligently orchestrated evaluation process designed to uphold our unparalleled quality standards. Our comprehensive scrutiny involves an exhaustive analysis of the chemical composition alongside a meticulous inspection of physical properties. We uphold our unyielding commitment to excellence by mandating each supplier to present a Certificate of Origin accompanied by a duly stamped Declaration of Conformity. This rigorous, quality-first approach ensures that only materials reflecting the highest integrity and purity are selected, aligning perfectly with our precision-driven medical machining ethos. Our authentication process, characterized by its exacting nature, reflects our dedication to delivering unmatched quality, setting the benchmark for excellence in the industry.
Meticulous In-Process Quality Assurance
During our innovative machining operations, every component is subject to meticulous scrutiny, ensuring that dimensions and tolerances not just meet but set new standards in alignment with our rigorous specifications. Our vigilant inspection protocol is designed to pinpoint potential defects at an early juncture, adeptly averting non-conforming parts from advancing in the production line. This proactive strategy is instrumental in minimizing the risk of substandard goods, thereby guaranteeing superior quality throughout the production process and maintaining our steadfast commitment to excellence across all stages.
Proactive and Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) is a cornerstone strategic initiative, crucial for the early identification and resolution of potential production challenges. This proactive methodology is key to efficiently addressing issues before they evolve into major mass production concerns. The comprehensive and precise FAI process is vital in mitigating quality risks, ensuring our products consistently attain and exceed industry pinnacles. This unwavering commitment to superiority permeates every aspect of the production cycle, guaranteeing that we continuously fulfill and surpass the most stringent quality benchmarks, embodying our promise of excellence.
Comprehensive and Rigorous Final Inspection
Prior to any product's departure from our distinguished facility, it undergoes a thorough and rigorous final inspection. This comprehensive evaluation meticulously examines dimensions, visual aesthetics, performance, and any customer-specific criteria. Our detailed inspection process exemplifies our relentless dedication to quality, ensuring that every single part dispatched meets our exacting standards. We remain unwavering in our mission to deliver only the highest-caliber products to our esteemed customers, thereby fortifying our renowned reputation for excellence and reliability.
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Company Profile
Founded in 2009, with its esteemed journey tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a beacon of brilliance in the sphere of high-precision component machining. For more than twenty years, our relentless drive for innovation thrusts us to the forefront of technical research, fortifying our standing as vanguards in the domain of precision engineering. We have attained an extraordinary level of technical proficiency that cements a celebrated market stature, setting us apart as industry trailblazers. Our exceptional acumen in precision medical machining consistently delivers impeccably tight tolerances and flawless surface finishes, further reinforcing our reputation as the preferred partner for the medical industry.
With four strategically situated production bases in the bustling centers of Shenzhen and Guiyang, supported by an elite cadre of over 400 highly skilled professionals, Donghui has meticulously developed a comprehensive and vertically integrated industry chain. This seamlessly intertwines research and development, production, and delivery, empowering us to meet and surpass our customers' diverse needs with outstanding efficiency and unrivaled quality. Our advanced facilities are meticulously designed to manage the most intricate and demanding machining tasks, upholding our esteemed reputation for excellence and pioneering 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)
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