Leading Manufacturers, Exporters, Wholesaler and Trader of Dry Sieve Test Apparatus, Electromagnetic Sieve Shaker, Hydrodynamic Sieve Test Apparatus and Rotap Sieve Shaker from Delhi.
The test involves sieving rounded particle sizes for which 5% or less by weight pass through the geotextile. The Apparent Opening Size (AOS) is defined as ‘Retained On’ size of that fraction expressed as a standard sieve number (size). The test is widely used for relative comparison amongst the geotextiles. Thus AOS is a means of correlating geotextile pore structure to an equivalent screen mesh size. The apparatus consist of a 20 cm dia brass frame with clamp, a receiver and a lid Dry Sieve Test Apparatus.
ELECTROMAGNETIC SIEVE SHAKER, which have been developed applying the latest technological advances of power control. The sieve shakers micro processor controller is used to set both the process time from 1 min to 99 min and the amplitude from 0.5 to 3.5.
The apparatus consists of two test drums of 14 cm dia and 10 cm effective length with 16 nos. of 4 mm dia rods provided circumferentially at equal spacing to hold the geotextile specimen in position. Two troughs to contain the test drums are supported on horizontal axis, facilitating free rotation and capable of being filled with distilled water to a level of 20 mm below the drum axis. The clearance between the trough and the geotextile could be maintained at about 40 mm. The apparatus is provided with a motor drive and a change gear assembly to enable rotation of the drums at a speed of 20 rpm.
RoTap Sieve Shaker machines have been engineered with reliable, rugged steel and alloy materials ready to withstand the everyday, harsh duty cycles. These units are fitted with heavy duty electric motor (1/4 HP) that enables the machine to provide efficient circular and hammering motions. Also available with Digital timer
