Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by more than just obligation; our journey intertwines passion with expertise in the intricate artistry and meticulous science of precision manufacturing. Here, we are not just participants but leaders, setting new heights in industry standards. With unmatched expertise, we illuminate the path in high-end component manufacturing, leading to flawless precision and extraordinary excellence, reshaping industry benchmarks with every endeavor. As trailblazers in innovation, we are at the cutting edge of designing and producing revolutionary intelligent automation equipment. Our advanced solutions seamlessly serve a vast variety of industries, catering to a broad spectrum of applications and requirements, including:
- Medical and Biotech: We provide meticulously crafted, high-precision components and innovative solutions for cutting-edge medical devices, ensuring compliance with the industry's most rigorous quality standards.
- Semiconductors: We revolutionize chip manufacturing and machinery by supplying essential core components crucial to the semiconductor industry's rapid growth.
- New Energy: We engage in the dynamic and sustainable advancement of next-generation energy equipment, leading eco-friendly technological innovations.
- Automotive: We supply crucial components that drive innovation within the automotive sector, fostering the development of smart and electric vehicles with unmatched precision and dependability.
Main Products
- We take pride in crafting custom non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors. Every piece is a testament to our commitment to unrivaled precision and superior quality.
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 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 extensive collection positions us as a leader in innovation, demonstrating our commitment to pushing the boundaries of what's possible in precision engineering.
- 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, ensuring that we remain ahead in technological advancements and market trends.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Standard of Unmatched Purity and Integrity
Every raw material that gracefully enters our distinguished warehouse is subjected to a comprehensive and meticulous evaluation, ensuring not a single detail is overlooked by our discerning attention. This thorough analysis delves deeply into both the chemical composition and physical attributes, guaranteeing that only the finest quality materials are accepted. Suppliers must provide a Certificate of Origin and a stamped Declaration of Conformity, a true testament to our unwavering pursuit of excellence. Only materials that exemplify the highest purity and integrity meet the stringent criteria for our high-precision medical machining services. This rigorous authentication process acts as a steadfast guardian, unwavering in its dedication to maintaining extraordinary quality at every turn, underscoring our commitment to delivering products of unparalleled refinement and precision.
Intensive In-Process Quality Assurance: Mastering Precision at Every Step
Amidst the harmonious rhythm of our state-of-the-art machining operations, each component undergoes meticulous scrutiny to ensure that dimensions and tolerances not only meet but exceed our ambitious standards. Our continuous inspection protocol is a carefully orchestrated symphony, expertly identifying and addressing potential discrepancies at their nascent stage, effectively preventing any non-conforming parts from advancing further. This vigilant methodology is indispensable in mitigating the risk of substandard products, safeguarding superior quality throughout each production phase, and ensuring our standard of excellence is consistently maintained throughout the entire orchestration of processes.
Strategic First Article Inspection (FAI): Foreseeing Flawlessness with Precision
Our First Article Inspection (FAI) process stands as a strategic cornerstone, equipped with the foresight to foresee and address potential production challenges at their inception. This proactive approach serves as a steadfast safeguard, averting issues from escalating into widespread production dilemmas. The exhaustive and precise nature of our FAI process is critical in mitigating quality risks, ensuring our products consistently reach the zenith 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 Height of Perfection
Before any product departs our facility, it undergoes an exhaustive final inspection marked by unparalleled meticulousness and rigor. This thorough process assesses dimensions, visual appeal, performance, and any customer-specific stipulations with extraordinary precision. Our comprehensive inspection not only serves as a testament but as a commitment to our relentless pursuit of quality, ensuring every product that exits our facility is a beacon of our exacting standards. Our devotion to delivering only the highest quality products to our esteemed customers fortifies our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, and tracing its illustrious origins back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a preeminent leader in the domain of high-precision component machining. Over twenty remarkable years, driven by an unwavering dedication to pioneering innovation, we have delved deeply into technical research. This relentless pursuit has secured our status as trailblazers and thought leaders within the precision engineering sector. We harness an extraordinary depth of technical expertise, crafting an outstanding market reputation that distinctly sets us apart as industry frontrunners. Our unrivaled proficiency in precision medical machining services empowers us to consistently achieve exceptionally tight tolerances and impeccably flawless surface finishes, firmly establishing us as the premier choice within the medical sector.
With four strategically positioned production bases in the bustling cities of Shenzhen and Guiyang, driven by a dedicated team of over 400 highly skilled professionals, Donghui has constructed a robust, vertically integrated industry chain that flawlessly merges research and development, production, and delivery. This integration ensures that we consistently meet and exceed the diverse needs of our clients with extraordinary efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to tackle the most intricate and demanding machining tasks, continually upholding our esteemed reputation for excellence and groundbreaking 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)