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The 2-point flexure test explained

The 2-point flexure test determines bending stiffness in accordance with ISO 2493-1, DIN 53121 and ISO 5628, together with the technical quality of creasings as per DIN 55437-3.

Bending stiffness is of critical importance in the onward processing of paper and board. To enable reliable, trouble-free operation of packaging and filling machines, the paper or board must be flexible within defined limits. At paper feed changeover, uniform stiffness properties are also essential for smooth operation of the packaging machine.

Zwick's 2-point flexure test kit covers two applications: measurement of bending stiffness and determination of folding characteristics at a bending angle of 120°. Accurate, high-resolution measuring technology eliminates the need for a change of load cell.

2-point flexure test
2-point flexure test

2-point flexure test with Zwick

  • Bending forces are recorded by a load cell with a measurement error of just 1%.
  • Positioning of the load cell away from moving machine parts avoids signal interference.
  • Electronic angle measurement with 0.001° resolution guarantees maximum reliability for measured values.
  • Specimens up to 50 or 100 mm wide can be clamped.
  • The kit includes precision indexing for gage lengths 1, 2 and 5 mm.
  • The kit is available with three different clamping systems: screw clamping, spring clamping and pneumatic clamping.

КОНТАКТЫ

Представительство в Москве:
Tel.  +7 495 783 88 12/14
E-Mail  info@zwick.ru
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