caterpillar chassis for HDD drilling rig, robot and rock dirlling rig crawler under carriagecaterpillar chassis for HDD drilling rig, robot and rock dirlling rigsteel or rubber caterpillarSelf weight 1.4 ton, can carriage 6~6.5 ton weightwalking speed:2.4km/hPull force:5536kgclimb:30 degreewe can also produce 4~18ton caterpillar under carriage crawler under carriage