What Are The Principles To Be Followed in The Selection Of The Dispensing Needle Of The Dispensing Machine?

Needle selection for dispenser:

1. The first is to choose needles of different materials from glue. For example, stainless steel needles must be used for PUR hot-melt glue, Teflon needles are used for quick-drying glue, and opaque and opaque needles are best for UV glue. AB glue selects mixing nozzle (dynamic mixing nozzle or static mixing nozzle is selected according to different glue dispensers).

2. Select needles of different diameters according to the concentration of glue, the size of the dispensing area of the product, the thickness of the glue and the dispensing speed of the machine. If the glue concentration is high, the dispensing machine runs fast, the dispensing surface is large or the thickness of the dispensing layer is thick, a needle with a larger diameter is generally used. On the contrary, choose a smaller needle, and the size of the air pressure can also control the speed of the output, so this also plays a certain role in selecting the diameter of the needle.

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