We have diverse work vessels including the world largest grab dredger "GOSHO" and others to accommodate diverse constructions or port sizes.
With them, many work results have been accumulated in highly specialized construction since our establishment.
Here are our vessels, technology and projects.
Vessels(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
Vessels(Backhoe dredger)
Spud system backhoe dredger
26 RYOSEI MARU
KOJIMAGUMI technology
Sealed Double Structure Grab
Dredging Method
It discharges mud or soft mud grabbed by grab to barge through pipeline that is directly connected to grab.
This is an environmental response type new technology that made energy saving dredging possible, reducing turbidity greatly in the sea.
KOJIMAGUMI in the world
KOJIMAGUMI is a leading construction company with excellent accomplishment in the field of dredging of marine civil engineering in Japan.
Lately our technology has been appreciated in Africa, the Middle East and Singapore through the projects offered by Chinese and European general constructors.
We contribute to people's living around the world by creating ports.
