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Clark stiffness tester (automatic type) No.2046

Description

This machine measures the stiffness of paper, fiber and film by the self-weight flexing method. Typical specimens are papers of small basis weight such as newspaper and thin paper. The specimen is pinched between a set of rolls, and the rolls are turned slowly in both directions. The length of specimen projection from the rolls is measured, when the deflection angle of the specimen from one side to the other becomes 90 degrees. Based on this length, the Clark stiffness is determined. Conventionally, this test has required skilled technique and much time of operation, which would often cause inter-operator error. Aimed at solving such problems and labor saving, we have developed this tester that performs a series of operation steps automatically.




Spesification

Type fully automatic with digital display
Measurement method per JIS (Clark stiffness), both methods A and B are available
Specimen length 100 to 500 mm, to be input from the ten-key Maxim critical length on display 46 cm while measuring
Specimen feed switch Even with a long specimen, measurement is done in a short time, by adjusting the projection length.
Specimen width 15 to 50 mm (typically 30 mm) Selectable among 15, 20, 25, 30, 40, 50 (mm) by the selection switch.
Specimen direction MD, CD, non-directional
Selection of test method Selectable between methods A and B by the selection switch.
Determination of bending angle
Method A: 90-degree bending,
Method B: bending at an acute angle and at an obtuse angle
(the critical length is obtained by calculation from the extending length)
Flexing speed 1 rpm (rotation speed of specimen)
Data display Critical length and stiffness are shown digitally
Optional Acrylic case
Referential standards JIS P-8143-1996, TAPPI T451 cm-84
Power source single-phase 100/110 VAC 50/60 Hz 1A
Outer dimensions 320x385x480 mm
Instrument weight 18 kg



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