Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our relentless dedication transcends mere responsibility; it is a passionate quest for the exceptional artistry and meticulous science that epitomizes precision manufacturing. Driven by an unyielding zeal for perfection, we transform every component into a masterpiece of excellence. Our unrivaled expertise illuminates the landscape of high-end component fabrication, pioneering a path to unmatched precision and outstanding excellence. We are innovators at the forefront of creating and producing groundbreaking intelligent automation equipment. Our cutting-edge solutions cater to a myriad of industries, precisely and efficaciously addressing diverse application needs, including:
- Medical and Biotech: Elevating Healthcare with Precision: Delivering meticulously designed, high-precision components and state-of-the-art solutions for revolutionary medical devices, consistently maintaining the supreme quality standards synonymous with our brand of excellence.
- Semiconductors: Catalyzing Technological Advancements: Empowering the semiconductor industry by providing essential core components indispensable for chip production and related equipment, ensuring seamless success and fostering innovation.
- New Energy: Leading the Charge in Sustainable Innovation: Engaging dynamically in the sustainable progress of pioneering energy equipment, driving forward eco-conscious technological innovations.
- Automotive: Fuelling the Future of Mobility: Delivering vital components that drive innovation in the automotive sector, contributing significantly to the evolution of smart and electric vehicles.
Main Products: Mastery in Customization
- We excel in crafting bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unparalleled precision and superior quality.
Why choose us
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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, ensuring superior results that exceed expectations.
- Boasting a rich heritage spanning two decades, we harness our extensive production expertise, merged with remarkable technical and process acumen. Our unwavering commitment guarantees not only exceptional quality but also visionary innovation, propelling us to the forefront of precision engineering. This dedication firmly establishes us as trailblazers in the realm of precision engineering, setting new standards for excellence and innovation.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Evaluation
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every raw material entering our esteemed facility is meticulously scrutinized through a comprehensive and stringent evaluation process to ensure it aligns with our extraordinary standards of quality. Our thorough assessments involve an in-depth analysis of the chemical composition, along with a meticulous inspection of physical properties. We uphold our relentless commitment to excellence by mandating that each supplier provides both a Certificate of Origin and a duly stamped Declaration of Conformity. This rigorous protocol guarantees selection of only those materials that boast the highest integrity and purity, crucial for our precision-driven medical machining services. Our rigorous authentication process is a testament to our unwavering dedication to delivering the pinnacle of quality.
Meticulous In-Process Quality Assurance Protocols
Within our advanced machining operations, every component is subject to meticulous examination to ensure its dimensions and tolerances not only meet but exceed our stringent specifications. Our diligent and continuous inspection protocol is expertly crafted to detect potential defects at the earliest stage, effectively preventing non-conforming parts from progressing to subsequent phases. This vigilant methodology is essential in minimizing the risk of substandard products, thereby ensuring superior quality at each production stage and maintaining excellence throughout our entire manufacturing process.
Proactive and Strategic First Article Inspection (FAI) Approach
Our First Article Inspection (FAI) process is a core strategic initiative pivotal for the early detection and resolution of potential production challenges. This proactive approach ensures any issues are efficiently addressed before they escalate into major production concerns. The comprehensive and precise nature of our FAI process is vital in mitigating quality risks, ensuring our products consistently achieve the highest industry standards. Our steadfast commitment to excellence permeates every aspect of the production cycle, consistently surpassing even the most stringent quality benchmarks.
Comprehensive and Thorough Final Inspection
Before any product departs from our respected facility, it undergoes an exhaustive and thorough final inspection. This critical evaluation meticulously assesses dimensions, visual aesthetics, performance, and any customer-specific requirements. Our rigorous inspection process epitomizes our relentless commitment to quality, ensuring every component dispatched from our facility adheres to our exacting standards. We remain unwavering in our mission to provide only products of the highest quality to our esteemed customers, upholding our sterling reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., with its illustrious history dating back to 2002, stands as a beacon of excellence in the world of high-precision component machining. For over two decades, our relentless pursuit of innovation has propelled us to the forefront of technical research, establishing us as trailblazers in the field of precision engineering. We have mastered the art of technical precision, cementing our place as industry leaders with a prestigious market position. Our unmatched expertise in precision medical machining consistently delivers extraordinarily tight tolerances and flawless surface finishes, reinforcing our reputation as the preferred partner for the medical sector's most discerning needs.
With four strategically positioned production bases in the vibrant centers of Shenzhen and Guiyang, supported by an elite team of over 400 exceptionally skilled professionals, Donghui has ingeniously developed a comprehensive, vertically integrated industry chain. This seamlessly fuses research and development, production, and delivery, enabling us to fulfill and surpass our customers' diverse requirements with unparalleled efficiency and superior quality. Our cutting-edge facilities are meticulously designed to tackle the most intricate and demanding machining challenges, maintaining our esteemed 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)
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