LEFFER has developed an attachment for excavators which is connected to the piling guide. Qperation and hydraulic supply is effected normally from the excavator.
Two vibrators attached to the device effect the necessary compaction of the concrete when pulling the driven-in tube. The clamping collar can be hydraulically unlocked and opened towards the front so that the piling unit can be pulled away from the driven-in tube.
The open clamping collar enables efficient application of the piling unit, often working on two or three piles at the same time.