Multitech Scientific Instruments

Anand Parbat, Delhi

IS 1237, IS 1706 Specification:

This is used for determination of resistance to wear for Cement & Concrete flooring tiles.

Tiles specimen of size 7.06 cm x 7.06 cm is pressed face-wise under specific load on a grinding

path and abrasive powder is evenly spread on the rotating grinding disc the second parallel

side of the tile is subjected to wear for similar number of rotations. The wear of the tile is

measured on a thickness gauge specifically made for the purpose. The machine consists of a

disc rotating at a speed of 30 R.P.M. in a circular tray. A bracket is provided to hold the

specimen. A counter balance lever loads the specimen. Load applied is 30 Kgf. A funnel is

fitted to evenly spread abrasive powder on the grinding path. A Pre-set Counter

automatically stops the machine after 22 revolutions. This counter is Re-adjustable. The

machine works on 440 V A.C. Three Phase electrical supply. On request machine to operate

on 230 V A.C. Supply can also be supplied.

Standard Used : ASTM D2-33 & IS 2386 (PART IV)

Used for The Determination of Resistance of Aggregates to Wear by Abrasion.

Specification: It consists of two hollow cylinders closed at one end and provided with Fitting covers at the either end. These cylinders are mounted an a shaft at angle of 300 with the axis of rotation of the shaft. The shaft rotates at 30-33 RPM. Through a reduction gear operated by a motor and is provided with a revolution counter. Complete with Abrasive Charge consisting of 12 Nos. Hardened steel Balls of 48mm dia. Suitable for operation on 440 Volts, Three Phase, 50 Cycles, A.C. supply. Note : Option of Digital Preset Counter can be provided at an Extra Cost

Standard Used : BS 812

Used for Testing Aggregates for Resistance to Abrasion.

Specification: It consists of a disc rotating about a shaft connected to a reduction gear box coupled to a motor. The disc rotates at 28-30 RPM. Under the rotating disc is a tray with an outlet to facilitate the removal of sand. Two Conical Hoppers are mounted on a bracket fixed to the circular tray. An arrangement is made for start and stop the flow of sand. Two containers with weights are supplied to keep the specimens pressed against the rotating disc. Suitable for operation on 220 V, 50 cycles, A.C. Supply.