Shenzhen Walter WA series gear pump series hot melt adhesive machine is a device which transfers liquid in the form of metering precision gear pump and has wide viscosity range. The main function of the device is heating melt, temperature control and related security settings, heating melting device equipped with a cylinder assembly, used to put the hot melt solid and its melting, hot melt melted in the cylinder body and its asymptotic state under the action of gravity flows into a motor driven by the gear pump. Taking the hydraulic transmission of the molten viscose, and then through a continuous heating pipeline rubber hose is transferred to another heating device in the gun body. The control signal corresponding to the valve of the gun body is set up according to the production demand. The conventional control voltage of the solenoid valve is DC-24V signal, or the automatic connection control of the supporting equipment.