Method of selecting dispensing needle

The selection of dispensing needle is directly related to the use of glue and dispensing width. For example, hot melt glue dispensing needs to be heated to a high temperature state. Generally, the dispensing needles can not withstand the high temperature, so stainless steel dispensing needles need to be used. For some normal temperature glue dispensing, there are many dispensing needles, including plastic needles, plastic steel needles and Teflon needles, These needles are cheap.

PP dispensing needle is used for dispensing yellow glue. Generally, the dispensing needle costs less and its application effect is less effective. Yellow glue belongs to glue with poor fluidity. The use of plastic dispensing needle can help the glue flow. Moreover, the needle can be prevented from blocking from large to small, and the air pressure is in place. Although the use of plastic steel dispensing needle can solve the glue problem, its fluidity is poor, and its dispensing effect is poor, PP dispensing needle can be selected for yellow glue dispensing. The way of selecting dispensing needle is based on glue viscosity and use effect.

The selection of dispensing needle depends on the dispensing width, as well as automatic and semi-automatic

Automatic dispensing: since the machine controls and dispensing automatically, the dispensing speed is related to the air pressure and the dispensing valve. The glue control can be continuous, and the dispensing valve can dispensing continuously. Selecting the dispensing needle as one third of the glue point can meet the dispensing requirements and adjust the dispensing width.

Manual dispensing: due to manual control, the glue is directly transported from the pressure barrel to the manual valve, and then from manual to the dispensing needle. There is no continuous output capacity. It is all controlled manually. The selection of dispensing needle is the same width as the outer diameter of the glue point, which can meet the use requirements. This is intuitive dispensing, which is different from the selection of dispensing needle for automatic dispensing.

The above is the selection method of dispensing needle. The specifications of each dispensing needle are good, and there are many kinds of PP needle specifications, which can meet the requirements of various widths of yellow glue dispensing. It depends on whether you choose the correct manufacturer or not. If you choose our company, the specifications of PP needles are complete, which can meet your requirements for needle dispensing.