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TESTING: Portable Hardness Tester For Tablets

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Gardner has designed a portable, semi-automatic electronic hardness tester for digital tablets.


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The new TH3 hardness tester from Paul N. Gardner Co., Pompano Beach, Fla., is designed to accept digital tablets up to 30 mm (1.8 in.) in diameter. The portable, semi-automatic electronic tester with LCD display is said to be ideal for the table production area as a quick check as to compression force settings. The testing of a tablet’s hardness (or breaking force) plays a vital role in both product development and subsequent quality control.

            The tablet is placed on the unit’s test platform between the test jaw and the load cell plunger. A multi-turn, low-friction hand wheel similar to the type used in machine tools is used to apply load to the tablet until it fractures. The resulting breaking force is displayed on the LCD display in either newtons, grams, pounds or ounces. The unit measures 450x70x80 mm (17.7x2.76x3.51 in.) and weighs about 2 kg (4.41 lbs). 

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