TWIN FOLDING TESTER FOR PAPER AND BOARD

Code. 110106

Determines the folding resistance of paper, according to the Schopper principle.

Standards: ISO 5626, TAPPI 423

General Information:
The device measure the number of folds until the sample breaks. The test requires
that two samples be tested simultaneously.
Two samples are clamp in the folding heads for a simultaneously test. The spring
loaded sample supports are pulled apart, so that the samples clamped at the specified force. After
pushing the start button the folding knives begin to guide the sample around the sapphire supported
folding rolls. That way, the samples are folded on both sides at a radius of 0.25mm. If one sample
breaks, the folding process of the second sample continues until it breaks too. The movement of the
folding heads stop after test termination, so that the samples can be removed. The device records
and displays the number of folds until the sample breaks.
Technical Specification
· Papers up to 0.25mm thickness, Board 0.25 to 1.4 mm thickness
· Spring force min. 7.55N / ma. 9.81N
· Testing length : 130 mm
· Sample length : 140 mm

• Speed : 120 strokes/min
  · Sample Width : 15 mm
  · Thickness of folding knives: 0.5 mm
  · Diameter of folding heads: 6mm
  · touch screen with statistics functions
  · RS 232 interface for result transfer

Connections:
· Electrical connection: 230/110V, 50/60 Hz
· Water connection: Not required
· Compressed air: Not required