In the field of drying, Piovan has developed the application of an innovative technology: the use of a rotor with a industrial honeycomb structure to eliminate the humidity released by plastic material during the drying process.
This brand-new series, presented for the first time at the K2007 show, consists of four models that operate in a temperature range from 80 to 150°C, with air flows from 50 to 200 m³/h: HR50, HR100, HR150 and HR200.
The new HR professional dryers present numerous advantages such as:
• No expense for the connection of cooling water or pneumatics and no running costs for such services because the HR units require only electric power supply manufacturers;
• 50% reduction of the use of energy;
• Stable Dew Point, featuring set-up values in a range down to -50°C;
• Easy access to all machine components allowing Simplified maintenance
• Guaranteed absence of dust and of material contamination, making the HR dryers suitable for application in the medical and optical sectors too;
• Continuity of operation of the honeycomb rotor ensured by the new drive mechanism furnished with a wear-resistant Kevlar reinforced belt which eliminates traditional maintenance operations or lubrication, necessary when using rudimental professional belts or chains.
The HR units can be coupled with drying industrial hoppers having capacities up to 600 litres.
The control, in line with the standard one of the Piovan range of dryers, allows connection of the HR dryers to one or more drying hoppers and features the management of the professional resin feeding system.
The HR dryers have as a standard feature a number of important energy saving devices: Intelligent Energy Supervisor (IES) and Intelligent Material Drying (IMD).These functions self-adjust the drying parameters to the real machine throughput, and consequently optimise energy consumption: the granule receives only the quantity of heat necessary, with no waste.
One very neat characteristic of the HR line of dryers is their versatility, they are in fact suitable for all applications fields: Injection&Blow Moulding, Extrusion, PET and Optical Disc.
