Reamer with a propeller type "P" is used in trenchless technology,
pipe-laying using horizontal drilling operated rigs with tele-optic
preview.
The reamer is used in the final stage of the pipeline
system expansion performed on the target hole with a diameter of casing
pipe O406mm (or 508mm, 550mm), which is transported by auger spoil
transportation in the direction of "forward" to a diameter slightly
larger than the diameter of the target pipe.
Widening the hole
is done by pressing the reamer into the ground by means of actuators
while drilling enclosed hydraulic auger drive transport in the casing
pipe in the direction of "left". The land sandwiched between the front
arm of the reamer is taken away by snail transport and directed twords
the "forward" direction of the final chamber in the line of the covering
of the pipeline.
Hydraulic screw drive of the transport can be translated into various sizes (outer diameter) of "P" type reamers.
