|Diameter of test specimen||16 + 0.2 mm|
|Height of test specimen||6 to 10 mm|
|Diameter of rotating drum||150 mm|
|Length of rotating drum||470 mm|
|Speed of rotation of cylinder||40 + 2 RPM|
|Lateral movement of test specimen holder||4.2 mm per revolution of drum|
|Load on test specimen||10 N / 5 N|
MYQ Din Abrasion Tester 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 a cylindrical opening adjustable between 15.5 to 16.3 mm to clamp the test specimen with an arrangement to adjust the length of test specimen protruding out. The holder is mounted by a screw mechanism along a length of a rotating drum on which the abrasive cloth is fixed. The movement of the screw mechanism and drum is given by an electric motor, gearbox and chain mechanism to give the specified speed of rotation to the drum and the specified lateral movement to the test specimen holder. The swivel arm and test specimen holder are so disposed that the test specimen is pressed against the drum under the specified load with its center axis at an inclination of 3 degrees to the perpendicular in the direction of rotation and placed above the longitudinal axis of the drum. A rack and pinion arrangement to rotate the test specimen about its axis during the test (whenever desired) is also provided. The abrasive cloth is firmly fixed to the drum using a suitable peel able adhesive with the ends of the abrasive cloth butt jointed together. The equipment is provided with limit switches which, in addition to giving over travel safety to the movement of test holder by preventing the lower edge of the test specimen holder to touch the abrasive cloth. The equipment is built on the rigid steel base and finished in gray metallic and bright chrome/zinc plating to give it a corrosion resistant finish. The molding dies, rotary type cutting dies (hollow drill) for preparing test specimens and extra abrasive cloth are available as optional accessories.