GBM 4800 JACKING FRAME
The 4800 Series GBM system is designed as an all-in-one system excelling in all pilot tube installation methods including auger boring, pilot tube microtunneling, and rock boring. Features: No diesel emissions in working shaft. Direct install final product pipe or casing bore with one system. Minimize launch shaft requirements. Configurable latching style base frames to accommodate long pipe joints. Two-speed hydraulics and gearbox travel system expedite pilot tube installation. Hi-flow hydraulic valving with PCH controls standard. Works with all existing Akkerman Dual Wall Pilot Tubes. Installs pilot tubes in a wide range of ground conditions including rock.
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