Description

Up to ½" thick specimens, are mounted to a rotating turntable and subjected to the wearing action of two abrasive wheels, which are applied at a specific pressure.

Characteristic rub-wear action is produced by contact of the test sample, turning on a vertical axis, against the sliding rotation of two abrading wheels. The wheels are driven by the sample in opposite directions about a horizontal axis displaced tangentially from the axis of the sample. One abrading wheel rubs the specimen outward toward the periphery and the other, inward toward the center. The resulting abrasion marks form a pattern of crossed arcs over an area approximately 30 square centimeters.

An important feature of the TABER^® Abraser (Abrader) is the wheels traverse a complete circle on the specimen surface. This reveals abrasion resistance at all angles relative to the weave or grain of the material.

Test parameters can be altered, which enables the user to determine the optimal setting for each product or material. The TABER Abraser (Abrader) allows you to select:

• Load
  • standard range includes 250g, 500g and 1000g
  • optional counter weights increase range to 75g, 125g, 325g, 375g, 825g and 875g
• Abradants
  • wide selection of Taber wheels available (resilient or vitrified)
  • specialty wheels
  • custom formulations
• Vacuum level
  • programmable from keypad
  • adjustable vacuum nozzle clearance
  • range from 50% to 100%
• Test Duration
  • programmable up to 50,000 cycles
• Conditions
  • wet or dry

Each turntable has dual abrading arms that are precision balanced. Independently operated, the abrading arms can be raised (or lowered) to mount or inspect specimens. Each arm is loaded for 250 gram pressure against the specimen with the wheel mounting assembly in place (exclusive of the weight of the wheel). To increase the load to 500 or 1000 grams, a mount for auxiliary weights is located on the outside of the abrading wheel bearing assembly. The location ensures that weights are concentric with the abrading wheel. A stud on the rear end of the abrading arm is used to carry an optional counterweight (used to reduce the wheel load 125 or 175 grams). The stud is also used to hold an abrading wheel as a counterweight to compensate for the weight of the working wheel.

Taber Rotary Platform Abrasers (Abraders) are capable of providing reliable data in a matter of minutes, compared to the years that may be required by in-use testing

Click here to view a Taber abrasion test on Exatec(r) automotive glazing products according to test method ASTM D1044 (video is courtesy of Exatec LLC).