K-XRAY Rotomat KT 3G - Online thickness gauge for barrier film extrusion

K-XRAY Rotomat KT 3G

Even with extremely thin and touch-sensitive barrier films, the sensor of the K-XRAY Rotomat KT allows high-resolution thickness measurement. It is based on X-ray backscatter technology and uses a temperature-controlled air cushion. Mounted on a oscillating scanner with a bending arm, this is the fastest possible method of measuring the thickness profile directly on the bubble of a barrier film line.

Application
  • Largely contactless thickness measurement on the cylindrical film bubble
  • Suitable for barrier films made of PE, PP, PA, EVOH, TPU and comparable materials
  • For tacky films
Special Features
  • Temperature controlled air gap between sensor and film (Unique feature)
  • Faster profile aquisition compared to gauges located after the nips
  • Simple operation license procedure compared to solid state radiation devices
Technology
  • Radiometric thickness measurement using X-ray backscattering  (Unique feature)
  • Oscillating scanner with bending arm
Technical Data K-XRAY Rotomat KT 3G
K-XRAY Rotomat KT 3G
Measuring principleX Ray back scatter (Suitable for a wide range of materials)
X Ray tubemax. 19 keV, 0.75 mA
Standard measuring range10 - 500 µm
Measuring interval100 ms
Resolution0.1 µm
Accuracy after calibration10 - 30 µm: ± 1.0 µm | 31 - 500 µm: ± 3 %
Linearity within range of calibration thickness (± 10 %)Better than 2 %
Standard Sizes Rotomat KT
Size [mm]Layflat range *
min. - max. [mm]
Bubble diameter
min. - max. [mm]
Surrounding diameter
[mm]
1100255 - 165080 - 11002120
1200255 - 180080 - 12002200
1300300 - 1950110 - 13002200
1730505 - 2600240 - 17302800
1900585 - 2850290 - 19002800
2130865 - 3200470 - 21303200
2270975 - 3400540 - 22703200
26001150 - 3900650 - 26003700
27601270 - 4150730 - 27603850
32001540 - 4800900 - 32004500
33001540 - 4950900 - 33004500
37002530 - 55501530 - 37005050
* 4% shrink and 40 mm wobbling considered