TERRA-JET DJ 20

The drive saddle with 87 kN (9 t) of thrust and pullback force is driven by two hydraulic motors and a robust rack drive. The two rotary motors of the drive slide generate the high torque of 2,840 Nm. All TERRA-JET HDD drilling rigs are equipped with a hot-dip galvanized rod magazine. Optionally, these can be painted with duplex paint. Thanks to the high Swiss quality standards, the lifetime of your system is significantly increased. The 3.05 m long drill rods have a minimum installation radius of just 34 m. As a result, supply lines can be easily bypassed and laid. The rod magazine contains 39 drill rods with a total length of 119 m.

Intelligent operating elements such as speed control, cave mode or cruise control make drilling much easier for the operator. The ADBS electronic automatic pull-in system regulates the pullback speed within milliseconds. The operator can lean back and the machine does the work. Thanks to the sophisticated PLC control system and integrated features, the machine feels the ground and adapts optimally to the surface conditions.

The compact DJ 20 drilling rig can manoeuvre through a 1.60 m wide passage and can be easily controlled by remote control. The high-quality and durable rubber track chassis supports the entire weight of the drilling rig of 6.4 t (weight including 39 rods). It also provides the DJ 20 with the necessary mobility on difficult, otherwise inaccessible terrain. This ensures maximum stability during drilling work.

The oil cooler is located outside the engine compartment. It is easily accessible and offers maximum efficiency. TERRA-JET HDD drilling rigs are characterized by the combination of high-quality components with high Swiss quality standards. This results in a significantly longer lifespan

When developing the TERRA-JET DJ 20, emphasis was placed on ease of service and reliability. All hydraulic components are easily accessible and can be easily monitored and maintained. The cover can be opened completely. The electrical system is clearly arranged in the central electrical box. The result of this service-friendly concept is satisfied customers all over the world.

On board the TERRA-JET DJ 20, there is an FMC high-pressure pump with a bentonite flow rate of 160 l/min, which pumps the bentonite from the mixing tank through the drill pipe to the drill head nozzles at a maximum of 50 bar. Thanks to a warning indicator, the FMC pump cannot run empty when the tank is empty. This increases the lifetime and reduces pump wear.