Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere responsibility. It embodies an inspired passion for the artful mastery and exacting science of precision manufacturing, where excellence meets innovation. Our unparalleled expertise shines brightly in the realm of high-end component creation, illuminating the path to impeccable precision and unparalleled excellence, setting industry standards and breaking new ground. We are pioneers on the cutting edge of innovation and production in revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly serve a diverse array of industries, efficiently catering to varied applications and needs, including:
- Medical and Biotech: Providing meticulously engineered, high-precision components and cutting-edge solutions for advanced medical devices, ensuring the highest standards of quality and excellence are consistently met.
- Semiconductors: Enhancing chip production and its related machinery by delivering essential core components that are pivotal to the industry's remarkable success and growth.
- New Energy: Actively engaging in the dynamic and sustainable development of state-of-the-art energy equipment, championing eco-friendly technological innovations that lead the future.
- Automotive: Providing critical components that fuel innovation within the automotive industry, supporting the evolution and advancement of smart and electric vehicles.
Main Products
- We specialize in crafting non-standard customized components, serving the medical, automation, semiconductor, and automotive sectors with unmatched precision and exceptional quality, ensuring each product is a testament to our commitment to excellence.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, empowering us to brilliantly navigate a comprehensive spectrum of equipment categories. This extensive capability allows us to expertly fulfill the intricate machining requirements of diverse industries with unrivaled precision and efficiency.
- With an illustrious history spanning two decades, we harness extensive production expertise coupled with substantial technical and process capabilities, ensuring exceptional quality and trailblazing innovation. This positions us as pioneers in the esteemed domain of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: Our Pledge to Purity and Integrity
Every raw material that graces the threshold of our warehouse embarks on a rigorous and comprehensive examination journey. Our process is intensely thorough, delving into chemical compositions and scrutinizing physical properties with unwavering precision. We hold steadfast to our dedication to quality, demanding Certificates of Origin and stamped Declarations of Conformity from every supplier. This elite selection process ensures only the finest materials are chosen for our high-precision medical machining services. Our rigorous authentication acts as a vigilant sentinel, ensuring each material aligns perfectly with our relentless pursuit of purity and integrity, exemplifying our unyielding commitment to excellence.
Intensive In-Process Quality Assurance: Precision in Every Moment
Throughout the intricate choreography of our meticulous machining operations, every component is scrutinized with exacting attention to detail, ensuring dimensions and tolerances not only meet but surpass our rigorous standards. Our vigilant, ongoing inspection protocol is an exemplar of strategic mastery, intercepting any potential imperfections at their inception, thus preventing non-conforming parts from progressing further. This proactive vigilance is pivotal in reducing the risk of inferior products, assuring premium quality at every stage of production, and maintaining an unwavering standard of excellence throughout the entire process.
Strategic First Article Inspection (FAI): Pioneering Perfection
Our First Article Inspection (FAI) transcends mere procedure-it's a strategic cornerstone of foresight, essential for identifying and mitigating potential production issues early on. This proactive strategy acts as a barrier, averting problems from escalating into full-scale production. The thorough and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently achieve unparalleled excellence. This steadfast dedication permeates every phase of our production cycle, guaranteeing we consistently exceed the highest standards of quality.
Meticulous Comprehensive Final Inspection: Achieving Pinnacle Perfection
Before any product makes its grand departure from our facility, it undergoes an exhaustive final inspection, characterized by meticulous and unwavering precision. This rigorous evaluation encompasses dimensions, visual appeal, performance, and any specific customer requirements with unyielding accuracy. Our comprehensive inspection is a testament and a promise to our relentless dedication to quality, ensuring every component leaving our facility is a shining example of our stringent standards. We commit wholeheartedly to delivering only the highest quality products to our valued customers, reinforcing our esteemed reputation for unparalleled excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended to become a beacon of excellence in the realm of high-precision basic component machining. With an unwavering commitment to pioneering innovation over the past two decades, our relentless pursuit of technical mastery has firmly established us as trailblazers in precision engineering. We have accrued an extensive reservoir of technical wisdom, securing an enviable market reputation that distinguishes us as industry leaders. Our unmatched prowess in precision medical machining services consistently achieves remarkably tight tolerances and flawless surface finishes, rendering us the go-to choice within the medical sector.
With four strategically positioned production bases in the thriving cities of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 skilled employees, Donghui has meticulously crafted a resilient and vertically integrated industry chain. This sophisticated chain seamlessly unifies research and development, production, and delivery, ensuring that we not only meet but surpass the diverse needs of our clientele with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are adept at managing the most intricate and challenging machining operations, underpinning our reputation for excellence and revolutionary 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)