Air pressure vessel



Length:60 m Width:25 m Draft:1.76 m 

◎Environmentally-friendly    ◎High work efficiency    ◎Safety of the site
Year built 1996
Air feeder manufacturer Sumitomo Heavy Industiries, Ltd.
Air feeder system Rotary feeder system
Air feeder rotar capacity 6.9 m3 (1 pocket 1.15 m3 × 6 pcs)
Air feeder dimension Width:3,200 mm × Height:3,250 mm
Air feeder nominal capability 1,600 m3/h
Air feeder discharging distance 3,000 m
Backhoe model HITACHI EX1800-2 × 1 pcs
Backhoe capacity 12 m3
Backhoe discharging capacity 1,000 m3/h
Main engine YANMAR 6N280L-EN (2,200 PS)
Main generator YANMAR M220L-SN (900 PS)
Aux. generator YANMAR 6HAL-N (100 PS)



Lately preservation of water quality in the ocean is demanded. In reclamation, conventional pump system has a turbidity problem of spill water. So, we came up with the idea of air pressure vessel with high efficient, environment-friendly and next generation system. That can transfer the large volume of the dredged soil, foreign material and clod that passed the hopper's grid, as they are without any additional water, to the reclamation site with the help of air pressure. Reclamation by air pressure vessel can prevent the pollution of the vicinity as spill water is reduced largely. Drying time of reclamation ground is shortened for fast land usage. We made a speedy and environmental-friendly reclamation available.


High work efficiency

A large backhoe with sufficient discharging capability made high discharging volume with cost saving possible.
Gap between tranferrer's rotor and casing can be auto-adjusted for stable transfer preventing lowering efficiency.
This transferrer doesn't choose the size of the soil, so the equipment like crusher or vibrator is not necessary and diverse soil as silt, sand or gravel can be handled.
Operation method can be adjusted according to the condition of soil type or discharging distance to maintain high efficiency.


Safety of the site

According to the ordinance on Industrial Safety and Hygiene, handrails, safe passage and fences around the machinery are installed. Remote controlled transferrer and pull-barge-winch are monitored with surveillance camera.
For occurrence of abnormal situation during operation, auto alarm and automatic stop kicks in. Emergency stop switch is installed near transferrer for manual stop.