Guyson installs Kerry Ultrasonic UCR into Eurocell

Guyson International has installed a Kerry Ultrasonic UCR (ultrasonic clean and rinse) machine for cleaning extrusion dies into Eurocell Profiles.

Eurocell Profiles found it regularly needed to clean its dies of plateout (gas fumes from PVC extrusion process) and other residue build-up to maintain a clean profile for accurate extrusions and prolong their working life.

Due to the precise nature of these dies any prospective cleaning process had to be able to clean without any fear of introducing dimensional change or wear to the critical profiles.

Also, due to the fact that many of the dies are in daily use, an in-house solution was required.

Guyson International proposed a Kerry Ultrasonic UCR system Trials were undertaken to determine the most effective transducer frequency and then a heavy duty 25 kHz ultrasonic twin tank wash and rinse system was designed and manufactured.

Smaller dies are loaded into a stainless steel basket and placed on the heavy duty base support grid on the bottom of the 800mm wide tank.

The larger multi-segment dies (up to 190 kg) are lowered by hoist onto the reinforced grid inside stage one's lidded 144 litre tank, where they are cleaned in a hot caustic cleaning solution with the low frequency 25 kHz sonics.

The tank is fitted with two submersible transducers, to deliver the sonics, mounted to the front and the rear side walls of the tank and also low level protection, heating complete with temperature indication and a process timer.

The dies are then moved by hoist into stage two's lidded tank where they are submerged and thoroughly rinsed clean in clean town-water.

Stage two also has a flexible spray wand to additionally spray the dies clean of any residuals and the tank is fitted with a weir to drain.

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