Thin-Wall WireLine Drill Rods

Thin-Wall WireLine drill rods designed for exploration drilling for solid minerals. Thin-Wall drill rods reduce string weight up to 25% that allows to increase the depth capacity up to 25% and make economy on energy consumption during drilling.

Thin-Wall WireLine Drill Rods

Technical characteristics of Thin-Wall WireLine Drill Rods

Name Part # Outer diameter D, mm Inner diameter d, mm Wall thickness t, mm Rod length, mm Weight, kg Threaded connection tightening torque, Nm
Min / Max
Maximum torque, Nm Maximum drilling depth, m
NRQCL drill rod WLN2-L-850-1500 69.9 59.80 3.5 1500 9.2 600 / 2880 2400 2200
NRQCL drill rod WLN2-L-850-3000 69.9 59.80 3.5 3000 17.8 600 / 2880 2400 2200
HRQCL drill rod WLH2-L-850-1500 89.0 77.30 4.0 1500 13.5 1010 / 4230 3530 1900
HRQCL drill rod WLH2-L-850-3000 89.9 77.30 4.0 3000 26.0 1010 / 4230 3530 1900
PHDCL drill rod WLP4-L-850-1500 114.3 101.55 4.5 1500 19.4 1010 / 4890 4070 1510
PHDCL drill rod WLP4-L-850-3000 114.3 101.55 4.5 3000 37.6 1010 / 4890 4070 1510

Comparable characteristics of drill string of Thin-Wall drill rods and usual drill rods

Parameters NRQ NRQ-L HRQ HRQ-L PHD PHD-L
Weight of drill string for 500 m, tn 3.85 2.97 5.70 4.34 8.17 6.27
Weight of drill string for 1000 m, tn 7.70 5.94 11.40 8.68 16.34 12.54
Max. drilling depth for ZBO S15 drill rig, m 1260 1680 855 1150 555 790