The Taber® multi-finger scratch / mar tester is used to measure the relative resistance or susceptibility of a material surface to scratching, marring, gouging, scraping, engraving and other similar physical damage that can’t be classified as ordinary wear.
- Pneumatically driven, moveable platform
- Control knob operation
- Five independent spline-shaft fingers with support rest
- 9-piece weight set (2N, 3N, 4.5N, 5N, 6N, 7N, 10N, 15N, 20N)
- "Gripping" spring clamp specimen hold-down
- Replaceable specimen platform protective guard
- Electronic timer accurate to 1/100 second
- Air regulator control with built-in lubricator
The tester includes a pneumatically driven, move-able platform to which the test specimen is mounted. The platform moves in a linear fashion, and is operated by a control knob for single or multiple pass testing. An electronic timer displays the rate of speed, which can be controlled by reducing or increasing air pressure.
A gantry supports five independent splined-fingers, which provide a constant, vertical load on interchangeable scratch tips. The gantry system includes a handle to raise and lower the arms. In addition, five support rests are incorporated to allow one or more arms to be moved to an upright, rest position such that the arm does not contact the specimen during testing.
Although flat specimens up to 22 mm thick are normally tested, the 'free-floating' arms fingers enable you test evaluate slightly contoured specimens provided they are rigid or adequately supported. A spring-loaded specimen holder is standard and can be mounted to the end or side of the moveable platform for greater flexibility. To mount contoured specimens, two specimen hold-down clamps are provided. An optional 5mm spacer set is available to raise the gantry to accommodate specimens that are greater than 22 mm thick.
Delivery information: Supplied with spline shaft finger assembly (5 each), scratch tip of 1,0 mm Ø hemisphere (5 each), mar tip of 7,0 mm Ø hemisphere (5 each), 9 piece weight set (2N, 3N, 4,5N, 5N, 6N, 7N, 10N, 15N, 20N), electronic timer with digital display, adjustable specimen clamp (set of 2), quick disconnect socket for air supply and hex wrench.
