HT81 Hydraulic Drilling Jumbo

HT81 Hydraulic Drilling Jumbo Direct controlled hydraulic tunneling and mining drilling Jumbo equipped with telescopic boom and HC50 hydraulic drifter for cross sections up to 31 m2 Features *The drilling Jumbo adopted a direct controlled drilling system which incorporates excellent anti-jamming function RPCF (Rotation Pressure Controlled Feed force). *HC50 hydraulic drifter with large flow, low pressure and modern double reflex dampening giving genuine high speed drilling and excellent drill steel economy. *HT series heavy-duty box-type hydraulic feeds with high torsional resistance. *Telescopic heavy-duty booms for direct, fast and accurate positioning between holes. *Sturdy, articulated carrier with four wheel drive for easy manoeuvring in narrow tunnels and drifts. Four jacks for stable set up. Basic rig includes telescopic FOPS-approved protective roof, cable reel. HC50 hydraulic drifter Shank adapters R32, R38 Impact power 13 kW Rotation torque, max. 325 Nm HT Series Feeds HTA HTB HTC HTD Total length, mm 4607 5217 5827 6437 Drill steel length, mm 3090 3700 4350 4915 Hole depth, mm 2755 3365 3975 4585 Telescopic Boom Feed extension 1250 mm Boom extension 1250 mm Parallel holding Complete Feed roll-over 360 degrees Max. lifting angle +65 degrees -30 degrees Max. swinging angle ±35 degree Hydraulic system *Hydraulic pumps: one variable pump for percussion and positioning, one constant flow pump for rotation . *System pressure 150-180 bar *Hydraulic oil tank, volume max 124 L HT15 Carrier *Deutz 4-cylinder F5L 912W, 4-stroke prechamber diesel engine 55 kW (75 hp) at 2500 rpm, 230 Nm at 1550 rpm *Articulated steering with +/- 41 degree steering angle *Four wheel drive *Gradeability 1:4 at max. load on drive wheels *Tramming speed on flat ground>10 km/hr (at rolling resistance 0,05); on incline 1:8 >4.5 km/hr Electrical system *Total installed power 52 kW *Voltage 380/660 V *Frequency 50 Hz Dimensions and weights Width 2025mm Height roof down 2340 mm roof up 3040 mm Length while travelling 11050 mm Ground clearance 305 mm Gross weight (basic rig) 15700 kg Rock Tools Drifter rods Dimension Min. hole dia, mm R38-Hex 35-R32 45 Shank adapters Thread Dia, mm Length, mm R38 38 435 Couplings Thread Dia, mm Length, mm R38 55 170