Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere obligation. It is an eloquent fusion of passion and expertise in the delicate art and exacting science of precision manufacturing, establishing unprecedented standards within our industry. Our unrivaled expertise illuminates the landscape of high-end component manufacturing, paving a trail toward flawless precision and remarkable excellence, thereby redefining industry standards and benchmarks. As torchbearers of innovation, we spearhead the design and production of pioneering intelligent automation equipment. Our cutting-edge solutions seamlessly address the diverse needs of various industries, catering to a vast array of applications and requirements, including:
- Medical and Biotech: Delivering meticulously crafted, high-precision components and groundbreaking solutions for state-of-the-art medical devices, ensuring compliance with the most stringent quality standards.
- Semiconductors: Elevating chip manufacturing and its supporting machinery by offering indispensable core components essential for the semiconductor sector's swift advancement.
- New Energy: Contributing actively to the vibrant and sustainable progression of next-generation energy equipment, propelling eco-friendly technological breakthroughs.
- Automotive: Providing essential components that drive innovation in the automotive realm, bolstering the development of intelligent and electric vehicles with precision and dependability.
Main Products
- We excel in the creation of bespoke, non-standard components, extensively supporting the medical, automation, semiconductor, and automotive industries, ensuring supreme 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 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, we harness our vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This sets us apart as true pioneers in the realm of precision engineering, consistently delivering top-tier solutions 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 Benchmark of Unmatched Purity and Integrity
Each raw material entering our esteemed warehouse undergoes an exhaustive and detailed examination, ensuring not a single detail escapes our meticulous scrutiny. By analyzing both chemical composition and physical properties with the finest precision, we ensure that only the most superior materials are selected. Suppliers must provide a Certificate of Origin and a stamped Declaration of Conformity, underscoring our relentless quest for excellence. Only materials that epitomize purity and integrity are suitable for our high-precision medical machining services. This process acts as a vigilant guardian, safeguarding the exceptional quality we are committed to providing, and ensuring our products stand as paragons of refinement and precision.
Intensive In-Process Quality Assurance: Mastering Precision at Every Stage
Amid the rhythmic precision of our machining operations, each component undergoes rigorous scrutiny to ensure its dimensions and tolerances not only meet but exceed our high standards. Our ongoing inspection protocol is an expertly coordinated symphony, adept at identifying potential issues at their inception, preventing any non-conforming parts from advancing. This vigilant approach is key in reducing the risk of inferior products, safeguarding superior quality throughout each phase of production, and ensuring our standards of excellence remain consistently high across the entire process.
Strategic First Article Inspection (FAI): Achieving Flawlessness Through Precision
Our First Article Inspection (FAI) stands as a strategic pillar, equipped with foresight to preemptively identify and resolve potential production challenges at their early stages. This proactive stance functions as a steadfast safeguard, preventing issues from escalating into larger production hurdles. The thorough and precise nature of our FAI process is vital in mitigating quality risks, guaranteeing our products consistently achieve the pinnacle of excellence. This unwavering commitment to perfection is seamlessly integrated into every production phase, ensuring our standards consistently surpass the highest benchmarks of quality.
Meticulous Comprehensive Final Inspection: Achieving the Pinnacle of Perfection
Every product is subject to a final inspection of unparalleled meticulousness and rigor before leaving our facility. This stringent evaluation assesses dimensions, visual aesthetics, performance, and customer-specific requirements with exceptional precision. Our comprehensive inspection is both a testament to and a manifestation of our relentless pursuit of quality, ensuring every product that departs our facility epitomizes our high standards. Our unwavering commitment to delivering only the finest quality products to our esteemed clients strengthens our reputation for unmatched excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Established on the solid groundwork of 2002 and officially founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as an eminent leader in the realm of high-precision component machining. Over two decades of relentless commitment to pioneering innovation have entrenched us deeply in the technical research domain, where we lead as visionaries and pioneers in precision engineering. We have honed an extraordinary level of technical expertise, establishing a stellar market reputation that sets us apart as industry leaders. Our unmatched proficiency in precision medical machining services empowers us to consistently deliver components with incredibly tight tolerances and impeccable surface finishes, making us the preferred partner in the medical sector.
With four strategically positioned production bases in the vibrant cities of Shenzhen and Guiyang, supported by a committed workforce of over 400 highly proficient employees, Donghui has constructed a formidable, vertically integrated industry chain that effortlessly merges research and development, production, and distribution. This integration ensures we consistently surpass our clients' diverse needs with impressive efficiency and unsurpassed quality. Our cutting-edge facilities are meticulously prepared to undertake the most complex and demanding machining challenges, preserving 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)