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Adhesion Tester

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In DIN method of determining abrasion resistance of vulcanized natural or synthetic rubber, a cylindrical rubber test specimen is abraded against an abrasive surface mounted on rotating cylindrical drum in such a manner that abrasion takes place on one of the flat ends of the test specimen which is held against the abrasive surface under a specified load while being traversed across it. The ratio of the volume loss of a standard rubber to the volume loss of the test rubber measured under the same conditions, expressed as a percentage, gives the abrasion resistance index of the rubber under test. The DIN AbrasionTester is designed to determine abrasion resistance index of natural and synthetic rubber in accordance with the above principle. It consists of test specimen holder with arrangement to adjust the length of test specimen protruding out. The holder is mounted on a swivable arm pivoted in a bracket which moves laterally by a screw mechanism along the length of a worm reduction gear box with V-belt and pulleys to give the specified speed of rotation to the drum and the specified lateral movement to the test specimen holder. The swivable arm and test specimen holder are so designed that the test specimen is pressed against the drum under the specified load with its center axis at an inclination of 3 deg to the perpendicular in the direction of rotation and placed above the longitudinal axis of drum. ETS ETS
Spare abrasive cloths, moulding die and rotary type cutting die hollow drill for preparing test specimen are available as optional accessories.TECHNICAL DATA

Dimensions of the specimen16 mm diameter with minimum height of 6 mm
Dimensions of rotating drum130 mm diameter x 470 mm long
Speed of rotation of drum40 RPM+/- 1 RPM
Lateral movement of test specimen holder4.2 mm per revolution of drum
Total length of abrasion run40 meters (about 84 revolution)
Abrasive cloth450 mm wide x 473 mm long coated with aluminium oxide abrasive grain of 60 grit
Motor? HP , 230 volts.1-ph or 440volts.3-ph, AC.
Models available :Single & Triple arm (illustrated above)


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