Scratch hardness tester TA-98055 series

portableengravingprecision cutting tool

With the TABER® Shear / Scratch Tester, you can evaluate resistance to shearing, scratching, gouging, marring, scraping and engraving. Shear / Scratch tester TABER 551 With the TABER® Shear / Scratch Tester, you can evaluate resistance to shearing, scratching, gouging, marring, scraping and engraving. It can also be used to test the relative homogeneity of materials, the adhesive qualities of protective coatings and the effects of age on similar materials. Simple to operate, this portable instrument can test materials up to 1/2" thick by 4" square or round. Before mounting specimens on the Taber® Shear / Scratch Tester, the height of the scale beam is adjusted to match the thickness of your sample. A precision cutting tool, which is attached to a balanced and calibrated scale beam, is then placed on the specimen. Operated by an on/off switch, the turntable rotates at a constant speed to ensure greater accuracy in your test results. By changing the load on the cutting tool, you can evaluate your materials resistance to shearing or scratching. The removable scale beam is affixed to the instrument by sliding it onto an adjustable gage block shaft. So the scale beam can remain in a level position relative to the specimen and turntable, the gage block can be raised and lowered. Designed with an integrated bearing, the scale beam can be tilted in a rest position enabling the operator to mount or remove specimens. By changing the position of the sliding weight(s), the load applied on the specimen by the cutting tool can be selected from 0 - 1000g. Models TABER® Shear / Scratch Testers are available in two models