The
new Magnus* geothermal grouting tool from STS Mixers allows you to fully
grout your borehole and achieve a properly positioned loop for maximum
conductivity and with very little effort.
The Magnus can be:
• Used vertically, horizontally or any angle
in between
• Fed into the borehole mechanically or manually
by hand
• Attached to drill rod, steel pipe or plastic
tremmie line
• Used with most all grouts
The Magnus offers these benefits:
• Simple to use and rig up
• Positive mechanical separation of drilling fluid
and grout
• Easy clean up of tool
• Never a need to dig an exit hole
• Designed to keep loop from twisting
• Loop is anchored at bottom of hole
• All steel construction
• No problem of loop buoyancy while feeding down
vertical hole
• No clips, spacers, rebar or weights needed that
may hang-up
• Design of tool keeps loop forced to the outside
wall of the hole
• Insures a clean, debris-free hole by the swabbing
action as the tool is inserted and withdrawn
• No foreign material is allowed into drill rod or
tremmie line while placing loop in the borehol
How the Magnus works
• Drill the borehole to desired depth, trip out the
drill rods and install the grouting tool onto your drill
pipe or your tremmie line.
• Hook the geothermal loop to the push rod and then
slip the push rod onto the end of the grouting tool.
• Push the grouting tool (loop now attached) into
the borehole until it reaches the end of the hole. As
the tool is pushed into the hole, the
drilling fluid flows into the front of the tool and exits the rear of
the tool by pushing the end cap open, thus
stopping the "piston effect" (picture A).
• Now at the bottom of the borehole, simply start
pumping grout down your drill pipe or tremmie line
while drawing the tool back. (picture B).
The flow of the grout will force the push rod (with the
loop attached) out of the tool and anchor
into the side of the borehole. As the tool is drawn back,
the drill fluid will slide the end cap
closed and the tool, now becoming a swab, will force the drill
fluid and any debris back out the entrance
of the borehole. The grout will be filling the void as the
tool is drawn backwards, and the integrated
slots of the tool body will keep the loop separated
and pressed against the outside of the
drilled hole (picture C).
• Once the tool has been fully withdrawn from the
hole, simply disconnect the drill pipe or tremmie line
from the tool, rinse off, and you are ready
to go again. * Patent pending
Contact STS Mixers
today for more information on the Magnus geothermal grouting tool.