Goodeng® GT 3500L Maxi HDD Rig

CDS owns and operates a Goodeng® GT 3500L Maxi Rig, one of the most powerful drilling rigs in New Zealand. It has a pulling power of 805,000 Lbs which is capable of pipework installations in excess of 2km and pipework in excess of 2m in Diameter. CDS’s Maxi rig has already proved itself with a single drill shot of 1.2km and the installation of 1.2m dia pipe. CDS has recently upgraded the Maxi with a state of the art control system which measures and records actual downhole drilling pressures. This also has the ability to be monitored remotely from a mobile phone or laptop.


Operating Weight46 TMax Pullback Force358 kN (805,000 lb)
Dimensions (L x W x H)17.9 x 3.4 x 3.3mMax Thrust Force358 kN (805,000 lb)
Entry Drill Angle8 – 18°Max Torque112,000 Nm
Minimum drill string bend radius100mMax Flow Rate2000 L/min