The unit is compact with in-built timer to control duration of penetration presetted in factory to 5 seconds. The instrument is provided with leveling screws 

 

It is a multifunctional testing instrument for the material of road base and pavement. This can be used with many kind of testing accessories to test the compressive strength, indirect intensity test and bearing ratio of soil and pavement material. It can also be used to test the thermal stability and Marshall test of bituminous material. 

 

Redwood viscometer apparatus are widely used in Petroleum Laboratories, Industries, Oil Refineries, Educational Institutions, Research Organizations for standardization and determines the Viscosity of Petroleum products, which flows in a newtonian liquid except cut back Bitumens and road oils at the set temperature, They confirm to requirement of IP 70. Two adaption of Redwood Viscometers are available. Redwood Viscometers No. I for liquids having Redwood Flow 20 seconds to 2000 Seconds and Redwood Viscometers No. II exceeds 2000. The complete outfit comprises hemmertone finish, copper/Stainless steel bath with drain plug, electrical heating arrangement, Suitable to operate at 220 Volts 50 Hz AC mains Or gas heating arrangement with silver plated oil cup with precision stainless steel jet, ball value, cover, thermometer clip, stirrer and suitable stand with leveling screws. The sample required to be tested, is to fill in to the required level as indicated by the gauge in a cup having a Stainless Steel jet fixed in the bottom. The temperature is maintained during the test by heating the liquid in a bath surrounding the cup, and the flow time for 50 ml of the sample is measured.

 

Saybolt Viscometer are used for determining the Viscosity of fuel oil and lubricating oil both thin & thick. The apparatus consists of Stainless Steel bath with oil cup which is centrally placed in a water bath. The bath has a lid which contains a water cooling tube, two handle with two stirrer blades, thermometer socket and a straight heater, stirring is done by turntable arrangement. A thermometer can also be inserted into the cup cover. The jets one universal and one Furol can be screwed to the cup by a handle(without strainer, withdrawal tube and glasswares). can operate on 220 Volts AC mains. 

 

Standard Tar Viscometer are used for determining the viscosity of cut back bitumen and road oil. The viscometer consists of a chrome plated copper bath, with a drain valve and a central tube to receive the test cup and to position the stirrer, and is mounted on a stand with leveling feet. Stirrer has a curved shield and is provided with an insulated handle, thermometer socket and swivel support for the valve.