Dredger
Grab dredger
The world's largest grab dredger
GOSHO
Counter weight balanced hydraulic system
361 RYOSEI MARU
Counter weight balanced hydraulic system
661 RYOSEI MARU
Next generation grab dredger hybrid vessel
Hybrid vessel
381 RYOSEI MARU
Anchorless grab system
CHUKO MARU
Backhoe dredger
Spud system backhoe dredger
26 RYOSEI MARU
Reclamation
Air pressure vessel
Air pressure vessel
KOKUSHO
Air pressure vessel
AP-2100 RYOSEI MARU
Air pressure vessel
AP-1660 RYOSEI MARU
Air pressure vessel
AP-1000 RYOSEI MARU
Barge unloader
The largest barge unloader in Japan
P-8160
RYOSEI MARU
Barge unloader
P-3000 RYOSEI MARU
Barge unloader