Do You Know The Function And Choice For SMT Nozzle

Individuals in the SMT industry recognize that the SMT nozzle plays a critical role in SMT machine components. It is vital for absorbing and placing SMT components. The market offers a wide range of SMT nozzles made from different materials, including tungsten steel, diamond steel, ceramics, plastic steel, plastic, aluminum, and iron. Additionally, they come in various shapes such as round, square, and V-shaped holes, as well as different sizes. In this article, we will explore the functions of SMT nozzles and how to choose the right one.

For more information, please visit our website.

I. The Function of SMT Nozzle in Placement Machines

The SMT nozzle is not only essential for attaching and placing the absorbed components, but it also serves as the background for the optical vision system during imaging. It primarily utilizes vacuum suction to grasp components and employs air blowing to position these components accurately onto the circuit board.
For the placement machine to achieve optimal results, the center of the element, the center of the suction nozzle, and the spatial center of the acquired image must coincide. The optical vision system's adjustments compensate for any discrepancies found in actual operations.
Different mounting elements necessitate different suction nozzles. Almost every suction nozzle incorporates a reflective background to enhance image quality, ensuring precise highlighting of target information during processing. When the nozzle extracts an image, it serves as the background, thereby improving the visibility of the components.

II. Selecting the Right SMT Nozzle

1. **Choosing the Material of the SMT Nozzle:**
A. **Tungsten Steel Nozzle:** This nozzle is strong and durable but may become discolored. Beginners in SMT may choose tungsten steel nozzles, which can be cleaned with an oily pen, allowing for continued use.
B. **Ceramic Suction Nozzle:** This type of nozzle will not discolor, but it is fragile and can easily break. Careful handling is recommended to minimize the risk of fractures.
C. **Diamond Steel Suction Nozzle:** These nozzles are robust, do not discolor, yet are quite expensive, making them less cost-effective.
D. **Glue Head Suction Nozzle:** Ideal for materials with uneven or sticky surfaces, glue head nozzles have a limited lifespan. It’s advisable to purchase several as spares, allowing for easy replacement when wear occurs.

2. **Selecting the Size of SMT Nozzle:**
Standard nozzle specifications are generally fixed. For example, Samsung SM uses specific nozzles such as CN065 and CN040. However, for materials that are irregularly sized or shaped, custom suction nozzles may need to be ordered.