... of 100m/nq capacity, suitable for soil testing, SPT testing Mini Crawler Drilling Rig.Suitabble for diamond core drilling, carbide core ... .m5. WinchMax. lifting capacity(single wire): 15 knDrum speed: 19,38,84,168 rpmDiameter of the drum: 145 mmDrum Circumferential velocity ... : 1500 rpm7. Power Diesel Engine 12.1 kw/2000 rpm mini crawler drilling machine for soil testing, SPT testing