Single support cart for gear pump and screen changer
A concept that combines screen changer and gear pump on a single movable cart simplifies deployment of these components in an extrusion line, takes up less floor space than separately mounted machines, and provides easy access for replacement of filter media, it was announced by Nordson Kreyenborg GmbH.
The single cart is mounted on fixed casters that permit transverse-direction movement into and out of the extrusion line, while precisely aligned movement in the extrusion direction is provided by rails installed on the floor. At the same time, linear guides on the cart permit independent extrusion-direction movement of the gear pump and screen changer. To save space and facilitate access for changing screens, the company has in effect turned the gear pump onto its side so that its drive can be mounted below the pump. The gear pump in this system incorporates the same features as the traditionally configured equipment, including a cooling system that enhances the effectiveness of the thread shaft seal, which is particularly important for low-viscosity materials. The rate of coolant flow is adjustable, and the coolant may be either air or de-mineralized water.
Compact single-cart configuration designed for a recycler of PET includes Nordson KREYENBORG’s Type GPE 140/140-03 gear pump and Type K-SWE-280-4K-75-V/RS screen changer, plus the requisite adapter (photo Nordson Kreyenborg GmbH)