[Features] ●It is a jack for earth retaining work that can be easily expanded and contracted with an electric screwdriver or wrench. ●It is safe because it can be installed and removed from the ground without entering the excavation premises by using a dedicated working rod. ●The gear structure prevents the jack from shrinking due to water leakage like a hydraulic type. ●Using an electric screwdriver, you can adjust the expansion and contraction width in about 5 seconds, greatly increasing work speed.
[Use] ● Temporary earth retention in general for small-scale excavation work such as gas pipe burying work, water supply and sewerage work. ●Agricultural village drainage, underground electric wire burial work, structural foundation reinforcement work, seismic reinforcement work, elevated road foundation reinforcement work, etc.
