A Belgium-based packaging manufacturer has placed an order for its second KREYENBORG infrared dryer (IRD) for crystallisation and drying PET flakes, after the first proved beneficial in terms of increased throughput, process stabilisation and quality.
Sabert Europe recycles its own in-house PET waste to use in the production of its packaging via thermoforming. It says the decision to order a second dryer came after the first proved easy to install within the existing plant, as well as simple to operate and clean, which the company says enables continuous operation with high flexibility.
The installed IRD crystallises and dries the PET moisture content from one percent (10,000 ppm) to 0.01 percent (100 ppm) within 15 minutes. Several heating zones automatically regulate to a preset temperature. The product temperature, in each heating zone, measured by a pyrometer, is the reference input variable for the control system. Direct measurement of the temperature, enables the crystallisation and drying processes to be conducted with “total precision”, says KREYENBORG, resulting in reproducible results.
Variations in throughput are compensated by a preselected setting on the extruder or the automated start/stop function of the IRD.
"The IRD raises the quality of my products to a new level and that combined with an increase in plant throughput. The logical conclusion was the immediate purchase of a second IRD,” commented Sabert Production Manager, Jean-Luc Soret.