Backfill grout injection pump

We delivered backfill grout injection pump to a construction company in Japan.
(Horizontal Single Screw Pump)
This pump is capable of reliably transmitting high viscosity backfill grout used in shield method.

※Shield method : A shield method is the method of construction sapping a tunnel using the machine called a shield machine. A segment will be put together like a ring inside the shield machine so that a dug part isn't collapsing.
※Backfill grout : A liquid that fills the space between the walls (segments) supporting the tunnel and the bedrock.