Specification

Dosing systems for high-viscosity glues

Dosing systems for high-viscosity glues
In the automotive industry piston dosing systems are used for glueing car windscreens and
windows. These dosing systems supply the highviscosity glue to the application gun in an exactly controllable way. The volumetric flow control required for this purpose is achieved by means of a suitable long-stroke sensor in the hydraulic cylinder. The travel signal of the piston is
differentiated, and the speed signal deducted from this is supplied to the closed-loop control
circuit. The filling volume is determined through the position of the piston.

Reasons for choosing the system

The EDS eddy-current long-stroke sensors measure the piston travel or the piston position in the
piston axle with high accuracy and reliability, and without wear.