A specimen clamp bar secures the specimen to the instrument while a specimen roller ensures an angle of 85° (±2°) is maintained between the specimen and hexagonal (hex) abrasion bar. Test specimen is weighted, and then subjected to a unidirectional reciprocal rubbing action as it travels back and forth over the hex abrasion bar. The test specimen passes over two of the six abrading edges of the 12" hex abrasion bar during each test.
Depending on specimen width, up to three specimens can be evaluated simultaneously. Other features of the Taber Webbing Abrasion Tester include a slotted roller channel allowing a maximum stroke length adjustment of 330mm (13 inch); five preset speeds including 15, 30, 37, 45, and 60 cycles per minute; hinged, transparent safety cover; and a standard weight set of 2, 4 & 5.2 lbs. (an optional weight set of 3 & 5 lbs. is also available).