Get in touch +39 0536 808252

Meler B4 Manual Series

Melter with hose and manual applicator

‘Plug and glue’

The B4 has been specifically to suit manual and ‘low cost’ automatic applications. The unit will melt adhesive at a maximum rate of 6kg per hour.

Two Pump Styles

The gear pump version has a maximum pumping rate of 6kg per hour and a pressure relief valve to ensure a smooth delivery of the adhesive. The relief valve is easily adjusted from the outside of the melter. The piston pump version has a maximum pumping rate of 29.3kg per hour. The pressure regulator and gauge are also accessible from the outside of the melter allowing for easy adjustment. Pumping rate of 6 kg per hour for gear pump (fixed speed).

Electronic Control unit

The electronic control of the B4 has been developed using the same proven design principles of all the new Meler products and it’s simple and reliable operation provides temperature control from 40oC to 200oC with an accuracy of ± 0.5oC.

Hose Connections

The B4 has two hydraulic and electrical hose connections to the rear of the unit. The hydraulic connections are industrial standard 9/16 JIC and the electrical connections are available to heat the hose and gun with RTD control.


The melting tank of the B4 has a large surface area which gives an optimal melting rate.
The tank has a large lid for loading adhesive and has a lter and drain valve for easy maintenance.

Pump Motor

The B4 gear unit has a stop/start switch for the motor and an external electrical input for automatically starting the pump motor by the main machine or gun trigger.


Compatibility is one of the main characteristics of B4 melters. They have been designed to be compatible with either PT100 or Ni120 temperature sensors and can therefore replace most hot melt equipment in the market.