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EST 12 Surface and Sizing Tester |
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Ultrasonic Tester for the Determination of Paper/ Board Properties via the Wetting and Absorption Behavior of Liquid

- Quick tester for simple, efficient and accurate surface testing of paper and
board for:
- Absorbency
- Wettability
- Surface sizing/ internal sizing
- Coating quality / binder filming
- Surface porosity
- Oil absorption
- Surface starch content
- For prediction of converting properties:
- Printability
- Glueability
- Coating base paper quality
- Advantages:
- Easy handling
- Automatic calculation of parameters
- Portable
- Partly substitution of Cobb-Tester
- Useable with or without a PC
- Main user:
- Paper/ board producer
- chemical suppliers
- Paper/ board converter
- Measuring results:
- Intensity-time-diagram (with PC)
- Automatic calculated values
- Operation:
- In the same fashion like a "Dynamic Short-Time Cobb Tester"
- Field of application:
- Quality testing for internal- and surface-sized, coated
respectively uncoated paper and board
- Grammages up to 600 g/m2
- Measuring result:
- Automatically calculated quality parameters W, MAX (respectively S), t(I) and A(t) with excellent correlation to the results of the Cobb Test (in the long-time range), Bristow Wheel Test and the Contact Angle Test, Hercules Sizing Test HST (no correlation to HST possible, if paper sample contains CaCO3-filter!)
- Advantages:
- Portable low cost unit
- Ideal for quality control directly in production plants, for trial support by chemical application engineers and for troubleshooting
- Can be operated without a personal computer
- Speciality:
- The device can be extended to a "Mini-PDA" by connecting it to a personal computer
- If the instrument is connected to a PC, various testing liquids may be used
- Technical data:
- Sample dimension: 75x50mm
- Insert available for contaminating testing liquids
- Measuring frequencies: 1MHz, 2MHz selectable
- Dimensions: WxDxH 140x230x190mm
- Weight: approximately 4.2 kg / 9.3 lb
- Supply voltage: 230V, 50Hz / 115V, 60Hz
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Automatically calculated values: W, MAX, A(t), t(I)
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