... and may come true to continous unearthed work, jacking speed fast. Pipe Jacking MachineMud water balance pipe jacking machine can be ... and may come true to continous unearthed work, jacking speed fast.Technical CharacteristicFit in soft soil, clay ,sandy soil ,gravel soil ... for big N value hard soil. Jacking speed is very fast, maximum speed 120mm/ per minute. Operation precision high, may correct ...