Physical Properties & Strength TestersInternal Bond Tester 80-20 TMI INDUSTRIAL PHYSICS

The Internal Bond Tester 80-20 TMI, is designed to determine the internal bond strength of a variety of Paper and Board materials according to TAPPI T 569 and ISO 16260. The instrument design is based on a falling pendulum which creates a high-speed impact on a paper specimen. The paper specimen is sandwiched between two double-coated tape substrates. The pendulum impact measures the total energy required to delaminate the internal fibers of a specimen in a Z-type direction into two plies.

An automatic sample preparation station (Model 80-30) is available which allows five specimens to be accurately pressed and cut simultaneously. The prep station includes a safety enclosure over the cutting blades, eliminating the use of box cutting knives to separate the individual test specimens.

80-20-01 calibration block set is available for verifying calibration. The block set can be used with each of the 3 available pendulums. A force verification document for each range pendulum is included.

A set of 5 verification blocks are provided to check the operation. The block set is a proven method to ensure the instrument is operating correctly. The verification procedure includes a support fixture that is clamped onto the base and supports the block. The verification block rests in the support fixture. When the pendulum swings, it contacts the block. When the block is impacted by the pendulum, the system measures the force/resistance to move the block from the support fixture.