GRUNDORAM The dynamic ramming technique

GRUNDORAM pneumatically driven pipe ramming machines are used for the dynamic installation of steel pipes underneath roads, waterways, railway tracks, parks, etc. over lengths up to 80 m. The TT ramming technology provides thrust forces up to 40.000 Nm, enabling the economic installation of open steel pipe up to 4000 mm diameter in soil classes 1 - 5 (partly even class 6 - easily soluble rock) without jacking abutments.

The steel pipe ramming technique is suitable for installing longitudinally or spirally welded pipes, seamless pipes and pipes with insulation protection as product pipes, e.g. in pipeline construction, or as casing pipes for supply und drainage pipe bundles. The pipe rammers are also used horizontally for constructing underpassees, small outlets, pipe roofs for tunnel structures, for supporting HDD bores (HDD Assist). Vertical applications are foundations, sheet piling or well drilling.

Tracto-Technik Grundoram Tracto-Technik Grundoram Unterquerung

GRUNDORAM technology

The air driven piston inside the machine body strikes against the ramming head. The cinetical impact energy which is released that way enables maximum advancing of the pipe string due the the optimal force transmisision via the cones. As the constant loads affecting the machine require maximum product quality, the one-piece casing (head and casing are one part) is made out of a solid block which is thoroughly galvinzed. The piston is subject to an elaborate hardening process. A tight sealing minimises air consumption. Thus GRUNDORAM stands for durability and reliability.

13 powerful models

Tracto-Technik Grundoram Apollo The largest ramming machine APOLLO provides an impact energy of 40.500 Nm.

Only 3 main components

Tracto-Technik Grundoram Hauptkomponenten The one-piece casing is made out of a solid block which is thoroughly galvinzed. The piston is subject to an elaborate hardening process. A tight sealing minimises air consumption.

Installations lenghts / Pipe diamters / Machine types

Tracto-Technik Grundoram Chart

GRUNDORAM Accessories

Tracto-Technik Grundoram Accessoires

Leistungsdaten

GRUNDORAM
Type
Maschine Ø (mm) Ø rear
cone(mm)
Length (mm) Installation
i Pipe (mm)
Weight (kg) Air
consumption (m³/min)
No. of
strokes
(min-1)
Impact
energy
(Nm)
From
Pipe DN
David 95 112 1490 - 59 1,2 345 230 50
Atlas 130 145 1453 - 95 2,7 320 420 50
Titan 145 160 1545 - 137 4,0 310 800 100
Olymp 180 195 1690 - 230 4,5 280 890 100
Herkules 216 235 1913 - 368 6,5 340 1440 120
Gigant 270 300 2010 - 615 12,0 310 2860 200
Koloss 350 400 2341 - 1180 20,0 220 6820 280
Goliath 460 510 2852 - 2465 35,0 180 11600 380
Taurus 600 670 3645 - 4800 50,0 180 11600 380
Apollo 800 900 4400 - 11500 100 180 40500 600
Mini-Atlas 125 140 946 250 60 1,7 580 180 50
Mini-Olymp 180 230 1080 450 175 3,5 500 720 100
Mini-Gigant 270 330 1230 450 460 10,0 430 2000 200

Advantages of the technique: