Tracto-Technik GmbH & Co. KG

- Pneumatically Driven Pipe Ramming Machines

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GRUNDORAM pneumatically driven pipe ramming machines are used for the dynamic installation of steel pipes underneath roads, waterways, railway tracks, parks, etc. over lengths of up to 80 m. The TT ramming technology provides thrust forces up to 40.000 Nm, enabling the economic installation of open end steel pipes up to 4000 mm diameter in soil classes 1 - 5 (in part even class 6 - easily soluble rock) without the need for 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 underpasses, small outlets, pipe roofs for tunnel structures, for supporting HDD bores (HDD Assist) with vertical applications being used for foundations, sheet piling or well drilling.

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

The largest ramming machine APOLLO provides an impact energy of 40.500 Nm.

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