Abrasion tester

The TABER® Multi-Media Abraser provides a reproducible method to measure the relative abrasiveness of most fluids, powders, pastes and semi-solids. Used in conjunction with the Taber Rotary Abraser, the Multi-Media Abraser is valuable to characterize how these mediums cause wear when they come in contact with different components. The sliding wear concept utilized in the Multi-Media Abraser was first utilized to evaluate different types of adhesive and sealant formulations. The amount of wear observed in laboratory tests correlated well with the amount of wear that different adhesive formulations caused on moving parts in pumps and other application equipment in an automotive manufacturing setting. Additional details on this study are summarized in the February 1997 issue of Adhesives, Sealants & Industry article "New Tests for Determining Adhesive Abrasivity" (2.8MB). Description The medium to be tested is placed in a specimen dish that includes a replaceable stainless steel wear disc on the bottom. As the dish rotates, an integral drive shaft operates a set of gears which turn the spline shaft. At the base of the shaft is a pin holder with three (3) replaceable hi-grade brass pins that rotate in the opposite direction of the specimen dish. As the test medium flows between the brass pins and stainless steel wear disc, the material acts as an abrasive and causes wear. To test a wide range of material viscosities, both load and pin holder speeds are adjustable. The standard testing load on the brass pins can be varied from 250g to 1,000g (in 250g increments with the supplied weight discs). Optional weight discs can bring the maximum load to 2,500g.