Extrusion International 5-2017

PREVIEW 44 Extrusion International 5/2017 SIKORA: Innovative measuring, control, inspection At Fakuma, SIKORA is following seamlessly on from its earlier performances at renowned trade fairs for plastics, such as K in Düsseldorf and Chinaplas in Shanghai. Inno- vative measuring, control, inspection, analysis and sorting devices for the hose, tube, sheet and plastics industries will be presented. In the extrusion area, the focus will be on the CENTERWAVE 6000 for the measurement of large plastic tubes and the PLANOWAVE 6000 for the thickness measurement of plastic sheets. Further highlights are the PURITY SCANNER ADVANCED for the online inspection and sorting of plastic pellets as well as the PURITY CON- CEPT systems for the offline inspection and analysis of pellets, flakes and films/tapes. CENTERWAVE 6000: Measurement of large pipes with millimeter waves technology With the CENTERWAVE 6000, SIKORA presents a main ac- tor for the measurement of diameter, ovality, wall thick- ness and sagging of large plastic pipes during the extru- sion. The system is based on millimeter waves technology and measures pipes from 90 to 3,200 mm. The CENTER- WAVE 6000 R is available in a rotating version and thus offers the complete recording of the wall thickness at 360 points of the entire circumference of the pipe. Alterna- tively, a multiaxial system is available with static sensors. Both systems measure completely contact-free, they do not require any coupling media nor calibration and are in- dependent of the material and temperature of the pipe. “Already one year after its market introduction, the CEN- TERWAVE 6000 is successfully in use in production lines”, declares Holger Lieder, Sales Director SIKORA AG. “The benefits are obvious: continuous, reliable and precise measurements over the entire circumference of the pipe. The technology delivers information for the centering of the extrusion tools and the thermal control of the line. Simultaneously, the minimal wall thickness is ensured – and this saves costs. Modern quality assurance cannot be more perfect”, says Holger Lieder. PLANOWAVE 6000: Second member of the millimeter waves family for sheet extrusion The PLANOWAVE 6000, like the CENTERWAVE 6000, is based on millimeter waves technology with the resulting technical benefits. The PLANOWAVE 6000 precisely mea- sures the thickness of plastic sheets continuously during extrusion and over the entire width. “The PLANOWAVE excels through highly precise and non-contact measure- ments of the sheet thickness during the running extrusion and delivers measuring values for the adjustment of the crosshead”, says Holger Lieder. PURITY SCANNER ADVANCED: Online inspection and sorting of plastic pellets with a flexible camera concept Another highlight at Fakuma is the PURITY SCANNER AD- VANCED for online inspection, and sorting of plastic ma- terial. The unique combination of an X-ray camera with a flexible, optical camera system is the only technology at present that reliably detects contamination on the surface as well as inside of plastic pellets. Contaminated pellets are automatically sorted out. The user decides with which camera configuration the PURITY SCANNER ADVANCED will be delivered. Depending on the type of contamina- tion and application, optical high-speed cameras as well as X-ray, color and infrared cameras are coming into use. “In conversations with customers we observe that not only in- The CENTERWAVE 6000 measures plastic pipes with a diameter of 90 to 3,200 mm The PLANOWAVE 6000 measures the sheet thickness during extrusion