EPP pre-expanders from Kurtz are high-quality machines, designed for the automatic pre-expansion of expandable polypropylene (EPP), which have been continuously improved and developed in many years of experience and in a lively exchange with raw material suppliers. They impress with high productivity, quality and reliability, which equips EPP users against the price increase on the EPP raw material and energy markets.
The modern control concept of the EPP pre-expanders is realized on a touch panel with integrated PLC. A precise vapor pressure control in the range of +/- 0.1 bar and an electronic weighing device allows the user to pre-expand homogeneous bulk densities in the range of 15-60 g/l with the smallest deviation of +/- 1 g/l. Kurtz thus offers the possibility to compensate for the large bulk density variations within the raw material of +/- 2-5 g/l during pre-foaming.
With the use of a Kurtz EPP pre-expander, a truck can transport up to five times the raw material weight per trip, resulting in enormous cost savings. The potential savings in raw material consumption that can thus be achieved make it possible to amortize the cost of the investment within 2 years at a throughput of approximately 100 t per month.