Hydraulic coupling SG 21

CG 21 series couplers designed to work in agricultural machinery units:

1) for harrowing with tine harrows, loosening and levelling the ground surface. They are used for early spring moisture closure, repeated harrowing.
2) for harrowing with spring harrows before and after sprouting of technical and grain crops.
3) for autumn post-harvest harrowing to provoke sprouts, weeds and fallow.
4) for harrowing with rotary harrows pre- and post-emergence sowing of field crops (cereals, row crops, industrial crops) for surface loosening and aeration of soil, destruction of filamentous weed sprouts


In 2018, our company modernised SG series couplers, which allowed to significantly increase the reliability of the machine due to the use of an additional space frame on the supporting elements of the frame and sides. The modernisation also affected the mechanisms of the folding and tensioning systems.

The main units of the coupler are:...