Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication transcends mere commitment. We offer an extraordinary fusion of passion and adeptness in the delicate art and exacting science of precision manufacturing. Our unparalleled expertise radiates brilliantly in the realm of high-end component manufacturing, illuminating the journey to perfect precision and remarkable excellence. Pioneering innovation, we stand as leaders in the design and production of groundbreaking intelligent automation equipment. Our avant-garde solutions cater to a diverse array of industries, flawlessly fulfilling a variety of applications and requirements, including:
- Medical and Biotech: Delivering meticulously crafted, high-precision components and cutting-edge solutions for advanced medical devices, stringently adhering to the zenith of quality standards.
- Semiconductors: Elevating chip manufacturing and related machinery by providing indispensable core components crucial for the semiconductor industry's dynamic and sustained growth.
- New Energy: Actively partaking in the sustainable and vibrant advancement of state-of-the-art energy equipment, championing eco-friendly technological progress.
- Automotive: Supplying essential components that propel innovation within the automotive sector, supporting the evolution of intelligent and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and outstanding quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary collection of over 300 renowned machines, empowering us to masterfully address a vast array of equipment categories with precision. This expansive capability allows us to expertly cater to the intricate machining needs of multiple industries, offering unmatched precision and unparalleled efficiency at every turn.
- With a rich history spanning two decades, we leverage our extensive production experience, seamlessly blending it with significant technical and process expertise. This ensures not only exceptional quality but also trailblazing innovation, cementing our status as true pioneers in precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unrivaled Material Examination: Safeguarding Integrity and Purity
Within the prestigious confines of our warehouse, each raw material embarks on an intricate journey of quality assurance, leaving no detail unchecked. Our exhaustive evaluations delve deeply into both chemical properties and physical attributes, guaranteeing only the utmost quality. We enforce stringent documentation by requiring a Certificate of Origin and a stamped Declaration of Conformity from every supplier, reflecting our relentless pursuit of excellence. Only materials that meet our zenith standards of integrity and purity are chosen for our high-precision medical machining services. Our authentication process stands as a vigilant guardian, guaranteeing unwavering quality at every stage.
Rigorous In-Process Quality Assurance: Exemplifying Precision in Every Aspect
Throughout our seamless machining operations, each component is subjected to vigilant scrutiny, ensuring dimensions and tolerances meet and exceed our high standards. Our continuous inspection protocol is an expertly engineered system, adept at identifying potential defects at their inception, thereby preventing non-conforming parts. This meticulous approach is foundational in minimizing risks of inferior goods, ensuring superior quality at every phase of production, and upholding our tradition of excellence throughout the entire manufacturing process.
Proactive First Article Inspection (FAI): Trailblazing Perfection
Our First Article Inspection (FAI) is a strategic keystone characterized by foresight, promptly identifying and resolving potential production issues at their origin. This preemptive methodology acts as a formidable shield against the escalation of problems into mass production challenges. The thoroughness and precision of our FAI process are crucial in mitigating quality risks, ensuring our products consistently achieve the apex of excellence. This commitment to perfection is interwoven into every phase of the production cycle, ensuring our standards consistently surpass the highest benchmarks of quality.
Meticulous, Comprehensive Final Inspection: Realizing Perfection
Prior to any product departing our facility, it undergoes a final inspection that epitomizes meticulousness and thoroughness. This rigorous process examines dimensions, visual appeal, performance, and any customer-specific requirements with unmatched precision. Our comprehensive inspection is not just a testament but a pledge to our relentless commitment to quality, ensuring every part leaving our facility is a beacon of our exacting standards. Our dedication to delivering only the highest quality products to our esteemed customers maintains our reputation for peerless excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded upon the solid bedrock of innovation and excellence, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has been a distinguished leader in high-precision basic component machining since its inception in 2009, tracing its origins back to 2002. For over two decades, we have passionately committed to pioneering advancements in technical research, earning our reputation as experts in precision engineering. We have cultivated an extraordinary depth of technical knowledge, establishing a remarkable market presence that sets us apart as frontrunners in the industry. Our unrivaled proficiency in precision medical machining services enables us to consistently deliver products with exceptional tolerances and pristine surface finishes, making us the trusted partner of choice within the medical sector.
With four strategically located production bases in the dynamic cities of Shenzhen and Guiyang, powered by a dedicated team exceeding 400 highly skilled professionals, Donghui has cultivated a robust, vertically integrated industry chain. This chain masterfully combines research and development, production, and delivery, allowing us to meet and surpass the multifaceted demands of our clientele with extraordinary efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to undertake the most intricate and challenging machining assignments, upholding our esteemed legacy of excellence and forward-thinking 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)