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UNIVERSAL AUTOMATIC COMPACTOR
IS : 2720 (Part VII & VIII)
It is a motor driven mechanical compactor useful for soil compaction into 100mm or 150mm diameter moulds. Two sets of rammers are provided, one of 2.6 and arranged for 310mm drop and other 4.9kg and arranged for 450mm fall. For compaction soil into 150mm dia moulds, 100mm face dia rammers having weight 2.6kg and 4.89kg are used. Where as for 100mm dia moulds they are of 50mm dia. The rammer assembly is provided with a ratchet and pawl arrangement to lift it from the top of the soil layer. When the rammer reaches the required height the pawl release the rammer which falls freely on soil surface. The releasse mechanism Is operated by an arm moving up and down which is connected to a reduction gear coupled to the motor through another arm. An automatic blow counter futted to the compactor is used to set the number of blows. The base plate of the specimen mould is to be fitted to the rotating base palate of the instrument which makes 1/5th revolution per stroke. The equipment is suitable for operation on 230volts, 50cycles, single phase, A.C. supply.