The 3ZT series of spring cultivator is developed from our company according to the demand of foreign market.This machine adopts double-spring tension device which enables the tines during operation to bouncewhen meet with obstacles and return to normal working quickly after over them,by which the tines are protected .It has advantages of row spacing to be conveniently adjusted and the depth to be easily controlled.and the machine is suitable to cultivate and  loosen soil in the corn,cotton and beans field.