Also called Softening Point Apparatus. This apparatus is meant for determination of softening point of bituminous materials according to IP 58 and IS 1205. Softening point is that temp. at which the specimen under test becomes soft enough to allow a steel ball of specific dimension to fall a required distance under test condition. The apparatus consist of Glass beaker of heat resistant glass of internal dia 8.5 cm X 12 cm depth (approx.), Two steel balls each of 9.5mm dia, Two tapered brass rings, Two ball guides, ring stand and a MOTORIZED stirrer. Electrical motorized with heater and temp. regulator ‑ with DC motor and DC Drive, Glass Thermometers available at extra cost. Brass base plate is an essential accessory for preparing the specimen before actual test and quoted separately.
Rate of rise @ 5°C per minute is Possible only in Digital Model.
Click here for working video : https://www.youtube.com/watch?v=wshdQfiBLHk