Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unwavering commitment to excellence, where our passion seamlessly intertwines with profound expertise in the intricate art and meticulous science of precision manufacturing. Not just participants, we are distinguished leaders, consistently elevating industry standards to unprecedented pinnacles. Our unmatched expertise paves the way in the realm of high-end component manufacturing, setting the foundation for impeccable precision and extraordinary excellence. With each project, we redefine industry benchmarks, perpetually elevating the bar and transforming the landscape of precision manufacturing. As trailblazers in innovation, we lead the design and production of groundbreaking intelligent automation equipment that seamlessly serves a vast spectrum of industries. Our cutting-edge solutions address a diverse range of applications and needs, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and trailblazing solutions for state-of-the-art medical devices, we ensure strict adherence to the industry's most rigorous quality standards, consistently pushing the boundaries of innovation.
- Semiconductors: Ushering in a groundbreaking era in chip manufacturing and machinery with the provision of vital core components, we play an instrumental role in powering the rapid advancement of the semiconductor industry.
- New Energy: Actively contributing to the dynamic and sustainable progression of next-generation energy equipment, we lead the charge in eco-friendly technological advancements, championing the cause of a greener future.
- Automotive: Providing essential components that fuel innovation within the automotive sector, we drive the evolution of smart and electric vehicles with unmatched precision and steadfast reliability.
Main Products
- We take immense pride in crafting tailor-made non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors. Every piece we manufacture is a testament to our dedication to unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations represent a pinnacle of creativity and development, proudly featuring an exquisite collection of over 300 cutting-edge machines. Each piece is a marvel of superior engineering and precision, reflecting our commitment to excellence. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur cutting-edge machinery empowers us to expertly address a wide spectrum of equipment categories. This unparalleled capability allows us to meet the intricate demands of machining across numerous industries, delivering unmatched precision and efficiency. We are setting new standards and redefining excellence with our reliability and performance benchmarks, revolutionizing industry standards as we go.
- With a proud history spanning two decades, we harness an exceptional blend of extensive production experience and substantial technical and process expertise. This synergy guarantees superior quality and innovative foresight, positioning us as true pioneers in precision engineering. Our premium solutions consistently cater to the sophisticated needs of our clients, solidifying our leadership in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unrivaled Scrutiny of Incoming Materials: Guaranteeing Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we firmly believe that the keystone of our extraordinary quality is anchored in the detailed analysis and thorough inspection of every raw material that finds its way into our esteemed facility. Our adept team conducts a meticulous evaluation, rigorously assessing both chemical and physical properties, to ensure only the finest materials are utilized for our CNC machining components. We mandate suppliers to provide a Certificate of Origin alongside a stamped Declaration of Conformity, underscoring our steadfast dedication to quality excellence. Only materials exhibiting supreme purity and faultless integrity pass our stringent standards, pivotal for our high-precision medical machining services. Our rigorous validation acts as a vigilant sentinel, diligently safeguarding premium quality at every juncture, and reinforcing our commitment to delivering products that define sophisticated precision and unmatched excellence.
In-Process Quality Assurance: Ensuring Precision and Excellence Throughout
Amid the perfectly coordinated execution of our precision machining processes, each element is subject to meticulous scrutiny to guarantee that dimensions and tolerances not only meet but soar beyond our elevated standards. Our ongoing inspection protocols function like a masterfully conducted symphony, adeptly detecting discrepancies at the earliest opportunity to prevent non-conforming parts from advancing. This proactive vigilance is crucial in averting the risk of inferior products, preserving exceptional quality across every production phase, and ensuring our benchmark of excellence is unwaveringly upheld from inception to completion.
Strategic First Article Inspection (FAI): Anticipating Perfection with Careful Precision
Our First Article Inspection (FAI) embodies a fundamental strategic pillar, equipped with the foresight to detect and preemptively tackle potential production hurdles at the outset. This preemptive measure acts as a dependable guardian, averting issues from ballooning into extensive production concerns. The meticulous accuracy of our FAI process is paramount in minimizing quality risks, crucial in ensuring our products consistently reach the pinnacle of excellence. This unwavering pursuit of perfection is intricately woven through every stage of the production voyage, ensuring our standards consistently transcend the apex of quality.
Comprehensive Final Inspection: Ascending to the Apex of Perfection
Before any product embarks on its journey from our facility, it undergoes a final inspection process defined by unrivaled meticulousness and exacting rigor. This exhaustive evaluation intensely scrutinizes dimensions, visual aesthetics, performance, and any bespoke customer criteria with exceptional precision. Our extensive inspection serves as a testament to our relentless quest for quality, ensuring that every product leaving our facility is a testament to our rigorous standards. Our steadfast commitment to supplying only the finest quality products to our esteemed customers fortifies our reputation for unparalleled excellence and unwavering dependability.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a luminary of precision and excellence in high-precision component machining. Building upon a legacy that began in 2002, our unwavering dedication to transformative innovation propels us to the forefront of technical research. For over twenty years, we have solidified our position as trailblazers and visionaries, defining new frontiers in the precision engineering landscape. We possess peerless technical expertise, which has earned us a stellar reputation as industry vanguards. Our exceptional proficiency in precision medical machining services empowers us to consistently achieve ultra-tight tolerances and impeccably flawless surface finishes. This makes us the premier choice for the medical sector and reinforces our esteemed status as leaders of quality and precision.
With four strategically located production bases in the vibrant and innovative cities of Shenzhen and Guiyang, supported by a dedicated and talented workforce of over 400 highly skilled professionals, Donghui boasts a robust and vertically integrated industry chain. This seamless combination of research and development, production, and delivery ensures that we not only meet but consistently exceed the diverse needs of our clients with unmatched efficiency and superior quality. Our state-of-the-art facilities are equipped to tackle the most intricate and challenging machining tasks, upholding our esteemed reputation for unparalleled excellence and pioneering 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)