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Universal Automatic Compactor


Universal Automatic Compactor (SL-GT-018)
ASTM D 558, BS 1377-4
It is a motor driven mechanical compactor useful for soil compaction
into 100mm to 102 mm & 150mm to 152.4 mm diameter moulds.
Two sets of Rammers are provided, one of 2.5 kg and arranged for
300 mm & 305 mm drop and other 4.5 kg and arranged for 450 mm
& 457 mm drop. 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 release 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 fitted 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 plate of the instrument which marks 1/5” revolution per stroke.
The equipment is suitable for operation on 230 V, 50 Cycles, Single
Phase, A.C. supply moulds are to be ordered separately.