Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere obligation; it represents a harmonious fusion of fervor and expertise within the delicate artistry and exacting science of precision manufacturing, establishing groundbreaking benchmarks in the industry. Our unmatched proficiency shines brightly in the sphere of premium component production, paving the journey towards flawless precision and remarkable brilliance, revolutionizing industry standards. As vanguards of innovation, we are at the forefront of creating and manufacturing cutting-edge intelligent automation equipment. Our advanced solutions seamlessly serve an extensive spectrum of industries, accommodating a broad range of applications and needs, including:
- Medical and Biotech: Providing meticulously crafted, high-precision components and avant-garde solutions for state-of-the-art medical devices, guaranteeing compliance with the highest quality standards.
- Semiconductors: Augmenting chip production and related apparatus by supplying essential core components that are crucial to the fast-paced development of the semiconductor industry.
- New Energy: Engaging dynamically in the sustainable advancement of next-generation energy equipment, propelling eco-conscious technological breakthroughs.
- Automotive: Providing essential components that energize innovation within the automotive sector, bolstering the progression of intelligent and electric vehicles with precision and dependability.
Main Products
- Our expertise lies in crafting tailored, non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors, ensuring unmatched precision and superior 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.
- Leveraging a rich legacy spanning over two decades, we channel our extensive production experience with profound technical expertise and advanced process knowledge, ensuring superior quality and innovative solutions. This distinct advantage elevates us as true pioneers in the field of precision engineering, consistently delivering premium solutions to meet the sophisticated and dynamic requirements of our esteemed clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: A Testament to Unrivaled Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., the journey of each raw material begins with an unparalleled, meticulous examination. Our process ensures no stone is left unturned, as we delve deeply into every chemical and physical nuance to guarantee only the finest materials are selected. Suppliers present both a Certificate of Origin and a stamped Declaration of Conformity, embodying our relentless quest for excellence. This thorough authentication acts as a vigilant sentinel, safeguarding our high-precision medical machining services by admitting only materials of supreme purity and integrity. In doing so, we promise a steadfast commitment to delivering precision-engineered products of unmatched refinement, maintaining exceptional quality standards at every stage.
Intensive In-Process Quality Assurance: Crafting Precision with Mastery at Every Stage
Amid the seamless rhythm of our precision machining operations, every component undergoes intense scrutiny to ensure it not only meets but exceeds our exacting standards. Our continuous inspection protocol is akin to a masterfully orchestrated symphony, adept at identifying and addressing potential discrepancies at their earliest stages. This vigilant approach effectively prevents any substandard parts from advancing, reducing the risk of defects and fortifying our commitment to superior quality. With this comprehensive methodology, we ensure that our standard of excellence resonates throughout the entire production process, safeguarding the integrity of our products at each and every phase.
Strategic First Article Inspection (FAI): Anticipating Flawlessness with Precision
The First Article Inspection (FAI) at Shenzhen Donghui is a cornerstone of our strategic quality assurance, designed to foresee and mitigate potential production challenges from the outset. This forward-thinking approach acts as an unyielding guardian against issues that could escalate during mass production. Our FAI's exhaustive precision is crucial in minimizing quality risks, ensuring that our products consistently achieve the pinnacle of excellence. This unwavering commitment to perfection is intricately woven into every stage of the production journey, consistently elevating our standards to the highest levels of quality.
Meticulous Comprehensive Final Inspection: Embodying the Apex of Perfection
Before any product leaves our state-of-the-art facility, it is subjected to an exceptionally rigorous final inspection, ensuring dimensions, visual appeal, performance, and any specific customer requirements are met with unparalleled precision. This comprehensive evaluation is more than a testament; it is a cornerstone of our relentless pursuit of quality, guaranteeing that each product embodies our exacting standards. Our unwavering dedication to delivering only the highest quality products reinforces our reputation for unparalleled excellence and steadfast reliability, cementing our promise to our valued customers.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of excellence in the realm of high-precision component machining. Building on a solid foundation laid in 2002, we have risen to prominence as an industry leader. For over two decades, our relentless commitment to innovation and technical research has cemented our status as pioneers and thought leaders in the precision engineering domain. We boast an extraordinary depth of technical expertise and maintain an impeccable market reputation that sets us apart as industry leaders. Our unparalleled proficiency in precision medical machining services empowers us to achieve exceptionally tight tolerances and impeccable surface finishes consistently, making us the top choice within the medical sector.
With four strategically positioned production bases in the vibrant cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled professionals, Donghui has crafted a powerful, vertically integrated industry chain that seamlessly blends research and development, production, and delivery. This enables us to consistently meet and exceed the diverse needs of our clients with remarkable efficiency and outstanding quality. Our state-of-the-art facilities are fully equipped to tackle the most complex and demanding machining tasks, upholding our stellar 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)