Testing Machines, Inc.

Testing Machines, Inc.

40 McCullough Drive, New Castle, DE 19720 USA

Dynamic Absorption Tester

Dynamic Absorption Tester


Contact angle measurement is an empirical tool for understanding the wetting between a liquid and a substrate. The DAT Dynamic Absorption Tester offers a range of integrated instruments, for research as well as quality control. These instruments enable real-time, automatic analysis at full video speed of the interaction between a liquid droplet and a specimen surface. The time-dependent wetting and liquid penetration correlates to many experienced production problems in surface coating, sizing, printing and adhesion.


  • Fully automatic, integrated system

  • Exchangeable automatic feed systems

  • Captures 50 to 1,000 images per second

  • Optional Tilt Table

  • High precision pump accurate within 0.1 μl

  • Precision pulse system for gentle drop application

  • Drop application synchronised within 1 msec

  • Calibration with ISO certificate

  • Full compliance with test methods TAPPI T558 & ASTM D-5725

  • Software for Windows XP, Vista and 7 (2 & 64 bit OS)


  • Automatic and manual feed systems of "special design"

  • Sample feed for automatic measurement of "saturation time"

  • The DAT Image Sequencer to characterise fast absorbing rates of tissue and synthetic fibre materials

  • Optional Tilt Table for analysis of wetting/de-wetting phenomena as advancing/receding contact angles

  • True High-Speed systems capturing up to 1000 images per second

  • High-quality lens systems

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