Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere duty; it's fueled by an ardent passion for the artful mastery and intricate science of precision manufacturing. Our unparalleled expertise is the beacon in the field of premium component creation, lighting the way to flawless precision and excellence. We are trailblazers in the innovation and manufacturing of revolutionary intelligent automation equipment. Our state-of-the-art solutions span a vast array of industries, expertly addressing a wide range of applications, including:
- Medical and Biotech: Providing expertly crafted high-precision components and pioneering solutions for cutting-edge medical devices, maintaining superior quality standards at the highest level.
- Semiconductors: Bolstering chip manufacturing and its related machinery by delivering essential core components that are integral to the industry's advancement.
- New Energy: Actively driving forward the sustainable and dynamic development of innovative energy equipment, promoting environmentally friendly technological innovations.
- Automotive: Supplying crucial components that propel innovation within the automotive industry, supporting the advancement of intelligent and electric vehicles.
Main Products
- We excel in crafting bespoke, non-standard components, extensively catering to the medical, automation, semiconductor, and automotive sectors, assuring unparalleled precision and outstanding 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.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every piece of raw material that enters our warehouse is subjected to an exhaustive and rigorous examination process. Our detailed analyses encompass evaluating the chemical composition and conducting a thorough inspection of the physical properties. We maintain an unwavering dedication to quality by mandating that every supplier provide a Certificate of Origin and a stamped Declaration of Conformity. This meticulous process ensures that only the highest quality materials are selected for our high-precision medical machining services. Our rigorous authentication guarantees that these materials meet the supreme standards of integrity and purity, perfectly in line with our steadfast commitment to excellence.
Intensive In-Process Quality Assurance
Within our intricate and precise machining operations, every component is meticulously scrutinized to ensure that its dimensions and tolerances not only meet but exceed our stringent specifications. Our rigorous and continuous inspection protocol is strategically designed to intercept potential defects at the earliest stage, preventing non-conforming parts from progressing to subsequent production phases. This vigilant approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at each production stage, and upholding excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a foundational strategy that is crucial for identifying and resolving potential production challenges at an early stage. This proactive methodology prevents issues from escalating into mass production. The thorough and precise nature of our FAI process is essential in minimizing quality risks, ensuring our products consistently reach the apex of standards. This dedication to excellence permeates every aspect of the production cycle, guaranteeing that we not only meet but exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs from our facility, it undergoes a meticulous and comprehensive final inspection. This process rigorously evaluates dimensions, visual aesthetics, performance, and any customer-specific stipulations. Our extensive inspection process is a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are resolute in delivering only the highest quality products to our valued customers, cementing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009 with roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has flourished into a paragon of high-precision machining expertise. For over two decades, we've been on a relentless journey of innovation, diving deep into technical research to carve our niche as trailblazers in precision engineering. We have accumulated an unparalleled wealth of technical expertise, earning us an enviable reputation in the market. Our prowess in precision medical machining is second to none, consistently achieving extraordinary tolerances and flawless surface finishes. This expertise has made us the quintessential choice for those who demand excellence in the medical sector.
With four strategically placed production facilities in the dynamic centers of Shenzhen and Guiyang, bolstered by a committed workforce exceeding 400 skilled professionals, Donghui has meticulously crafted a robust, vertically integrated industry chain. This seamless integration of research, development, production, and delivery enables us to not only meet but surpass the diverse demands of our customers. Our state-of-the-art facilities are designed to tackle the most complex and challenging machining tasks, solidifying our reputation for excellence and cutting-edge 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)
Audited Supplier 
){kind=link}