The plastometer is used for the determination of plastic properties of coal by the Gieseler constant-torque method. It is designed to meet the ASTM Standard D-2639, providing critical data necessary for the thorough analyses of coking coals. Features * The low thermal inertia designed solder pot furnace enables rapid initial heat-up to 330ºC and quick cool-down from the maximum temperature, thus minimizing time wasted in temperature adjustments. * A regulated torque is supplied to the rabble arm stirrer through the use of electronically regulated speed and torque control systems. * Stirrer is embedded in the sample inside a three-piece crucible and is designed for ease of cleaning. * The head assembly is safely lowered into the solder pot furnace by way of a rack and pinion lowering mechanism that ensures safe sample placement for every test. * The microprocessor control unit automatically regulates the necessary power to the solder pot furnace by monitoring a type J (Iron-Constantan) thermocouple. * During the actual test the temperature of the furnace is increased at a uniform rate of 3 ºC per minute over the operator-selected temperature range. Supplied with * A specially designed solder pot furnace. * Microprocessor control system. * A sealed head assembly containing a stirring system and sample crucible. * Printer. * (2)ea. Barrels (Cat. No. Z211). * (2)ea. 3-piece Crucibles (Cat. No. Z212). * (2)ea. Chimneys (Cat. No. Z210). * (6)ea. Solder Bars (Cat. No. Z203). * (1)ea. Thermocouple (Cat. No. Z202). * (1)ea. Torque Test Assembly (Cat. No. Z706-1). Additional Models Catalog Number System Z91-3920-01 Dual Plastometer Z91-3920-03 Plastometer/Dilatometer