HRJ Hot Melt Adhesive Gear Pump

RT series melt pump/hot melt adhesive pump

● Application scope

(1) Used in polymerization reaction processes to transport high viscosity melts.

(2) Applied to melt spinning and used as a booster pump.

(3) Applied to extruders or injection molding machines to improve extrusion efficiency and reduce extruder load.

(4) Applied to conveying resin and melting resin, making the melt uniform and applying pressure to the mold head.

● Purpose and point

Suitable for conveying liquids with high viscosity and no particulate impurities. It has high output pressure, high viscosity of the conveying medium, high operating temperature, vacuum input port, convenient speed adjustment, and a large flow range. The material of the pump is temperature resistant and wear-resistant, with sufficient strength and dimensional stability.

● Working principle

Belonging to a positive displacement pump, it relies on the mutual meshing of the main and driven gears to cause changes in working volume during operation to transport the melt. The working volume is composed of the pump body, gear teeth, and bearing sleeve with side plate function. When the gear of the RT series melt pump/hot melt adhesive pump rotates, the melt enters the tooth grooves of the two gears in the suction chamber. As it rotates, the melt is brought into the discharge chamber from both sides, and the gears mesh again, causing the melt in the tooth grooves to be squeezed out of the discharge chamber and pressed into the outlet pipeline. Bearings cannot use conventional lubricating grease to avoid contaminating the melt, and usually use melt self-lubricating.