SHORE A & SHORE D HARDNESS TESTER The Shore Hardness is defined as the resistance to penetration by an indentor of specified shape under a defined load. Shore A are suited for use on soft elastomers the hardness of which is between 10 and 90 Shore A. Shore D are suited for use on harder elastomers (hardness >80 Shore A) and on plastics the hardness of which is between 30 and 90 Shore D. STAND FOR HARDNESS TESTER Hardness Tester Stand available in two types Loading from Top & Loading from Bottom. INTERNATIONAL RUBBER HARDNESS DEGREE METER (I.R.H.D.) The principal behind determination of hardness by dead load apparatus is based on the measurement of the difference between the depth of indentation of a standard ball in to the rubber under a small contact force and a large indenting force. The Machine is as per IS-3400 (PART-II) 1980. THICKNESS GAUGE : - Hand held Thickness Gauge Suitable for checking various materials in production control, routine and series test available in different range accuracy and throat as per STD specification. :- Thickness Gauge with stand ( Table model) Most suitable for checking the thickness of Rubber sheet, Fabrics, Leather, Rexine, Paper, Thin Films and all other flexible materials. It provides a maximum compressive load on the specimen to get exact reading as per ABRASION TESTER The Abrasion Tester is used to evaluate the resistance of elastomers to frictional wearing Abrasion tests to this testing standard are performed on samples of materials which undergo wear and abrasion during their normal working life (e.g. tyres, conveyor and drive belts, shoe soles). The machine is as per DIN-53516. COMPRESSION SET APPARATUS Compression set apparatus for testing under constant strain plate’s type with base plate and hand wheel arrangement consists of 4 steel plates with flat and parallel ground faces. These plates are moving in a fixture having a rigid base plates guided on a pair of rods. The spacers are also guided on the same rods with springs in between to increase the space between the plates for inserting the specimen. The machine is as per I.S.3400 (PART 10)1977. TENSION SET APPARATUS Tension set is defined as the proportion of applied strain remaining after a test piece has been stretched and allowed to retract in a specified manner.It is determined by stretching a test piece of standard dimensions to a suitable length in the apparatus for a specified time and temperature and then allowed to recover. The tension set is calculated as percentage of initial strain. The machine is as per I.S.3400 (PART 13)1972. SPECIFIC GRAVITY BALANCE (ANALOG/DIGITAL MODELS) Specific Gravity Balance direct reading type for use on vulcanized rubber or such other elastomers. The balance consists of rigid quadrant scale with figures printed on the scale standing vertically fitted on a heavy base. The balance is calibrated from 0.9 to 3.0. For most elastomers the specific gravity lies between 0.9 – 2.0, and test results in this range can be read directly and accurately by two decimal places. The balance is supplied with glass baker & calibration weight for periodical checking.