Usage : for sample preparation of fluting samples for the CCT or the CMT tests
Definition : Rigidity of the fluted structure is one of the essential characteristics of corrugated board and flat crush
resistance is necessary to prevent crushing of the flute structure on the corrugator and other converting
equipment. The corrugating medium test (CMT) permits the evaluation of corrugating medium before it is
fabricated into combined board, and may also be used as a basis for judgement of fabrication efficiency.
Standardization : ISO 7263 , TAPPI T809, SCAN P27 , PAPTAC D29 , APPITA/ AS 1301.434s
Device Description : the concora medium fluter consists of 2 directly heated segmentds with 175+- 5*C , covered
through a front plate and pressed against each other with definite force . the segmentd are directly heated with
200 W heating power . the sample is put on top and falls out ready from an opening in the lower area of the fluter.
The sample is glued on a tape with the help of a “Third Hand” and is then ready for testing in a crush tester.
Test Description : the sample is put into the opening on the top of the instrument . by pressing the start button ,
the stripe with 6”x ½” (152.4 x 12.7 mm) dimesion is inserted into the machine and falls out ready formed on the
lower part . the sample is then laid onto the opened “Third Hand” the holder is closed and the tape is glued onto
the sample . this sample is now ready for testing.