horizontal directional drilling rig 280KN pullback force 28ton thrust foce drilling rig 12000N.m spindle torque KDP-28 HDD Rig is mainly used for the civic construction especially underground pipe laying, and with 280KN pull capacity.The KDP-28 directional drilling rig is driven with full hydraulic system, propelled with its own crawlers. With reasonable structure, easy operation, high efficiency ...