The true value of the GRUNDOMAT soil displacement hammer

...becomes obvious underground, because down there, the displacement hammer is "on its own" and has to work effectively in every soil quality. Whether an operation is successful or not, is only a question of quality.

That is why we put so much weight on accuracy of alignment and reliability as well as on the robustness and longevity of the GRUNDOMAT soil displacement hammers. Our advice: look at the check list below and find out, whether cheap products or plagiatisms fulfil the same preconditions required for all purposes. Also be careful about cheap repairs, which are carried out without the original spare parts.

Quality & Service	TT Group	Competitors	Your advantage
reciprocating multi-cutter cone			high accuracy
stepped cutting edges / chisel			concentrated rock-shattering
two-stroke action			optimal power conversion for overcoming front resistance and coat friction, high impact force
multistage hardening process			for extreme durability
tensioning sleeve fastener			simple head exchange
hardened piston			minimum wear
piston galvanised			corrosion protected
sliding belts bear the piston			no metal-upon-metal friction
optimal sealing technique			low air consumption
casing hard chrome plated			long service life
casing profiled with saw teeth			high running stability in wet soil
casing with adequate wall thickness			no tension underground
change of directions with pressure (patented)			simply per lever
steering parts hard chrome plated			corrosion protected
reinforced compressed air hose			longevity
accessories for immediate pipe laying			for all kinds of pipes, simple assembly at the jobsite
aligning accessories			simple operation
compressed air heater Unitherm			applicable during frost spells, for all compressed air tools
training available			gaining know-how
sales partners all over the world			customer proximity
rapid spare parts delivery, 24 h service			minimum downtimes
applicable in many ways			e.g. for ramming steel pipes