TERRA-JET 3008 ES HDD class: 8 – 10 tons, pit launch machine

tj_3008_esThe results are promising. The TERRA-JET 3008 ES provides HDD bores in lengths up to 100 m (420 ft) and backream diameters up to 420 mm/16.5”. The bores may have curves with a minimum bending radius of R = 24 m. The high torque of 3’000 Nm and the high thrust and pullback forces of 80 kN (8 tons) are unique. It allows HDD bores in hard ground.

  • The TERRA-JET 3008 ES can be pit or surface launched. This HDD system has a modular design. Its main components are the pit frame, the hydraulic power pack and the mixing+pumping station.
    With its 2 separated hydraulic circuits for thrust and rotation, the TERRA-JET 3008 ES can operate simultaneously at maximum torque and maximum thrust or pullback force. The hydro-chain-drive has the highest efficiency rate, low wear and is dirt resistant. Due to the movable break-apart-system.
  • tj_3008_es_perkins_aggregatThe PERKINS Powered 3008 ES drives the pit frame and the mixing+pumping station. As an option, it can be equipped with a Diesel particulate filter (DPF), which fulfils the strictest anti-pollution norms.
  • The TERRA-JET 3008 ES is equipped with a second generation Automatic Drilling and Backreaming System (ADBS).

    This patented system automatically and within milliseconds adjusts the working speed of the drill to suite the ground conditions. In soft ground the drill operates at maximum speed, in hard ground slowly, but always at the optimum speed.

    This allows the operator to operate the drill at maximum efficiency in a controlled and relaxed manner and prevents the drill rods and drilling tools from being overloaded. During the pilot bore the ADBS controls the thrust force. If the drill head hits an unexpected obstacle, the ADBS stops the drilling speed immediately and drills very slowly through the obstacle. All automatically!

  • Technical Data
    *   Depending on ground conditions
    ** Depending on drill rod size
    Technical specifications can be changed without previous notice.
    pullback force
    8 to (80 kN)
    17’600 ft.lbs (9 US tons)
    thrust force
    8 to (80 kN)
    17’600 ft.lbs (9 US tons)
    driving power
    44 kW (60 PS)
    44 kW (60 HP)
    torque, 1st speed
    3’000 Nm
    1’920 ft.lbs
    drill rod rotation speed, 1st speed
    0 – 63 U/min
    0 – 63 rpm
    drill rod rotation speed, 2nd speed
    drilling fluid volume
    100 l/min
    26 gpm
    maximum drilling fluid pressure
    70 bar
    1000 psi
    drilling speed – quick gear
    14 m/min
    46 ft/min
    14 m/min
    46 ft/min
    drilling speed – at full load
    14 m/min
    46 ft/min
    noise emission in 7 m distance
    noise emission at operators ear
    pilot bore diameter
    ø 60 – 100 mm
    Ø 2.4″ – 4″
    maximum backream diameter*
    ø 420 mm
    ø 16.5″
    maximum drilling length *
    150 m
    500 ft
    drill rods, length
    1.0 m
    3.3 ft
    drill rods, diameter
    ø 57 / 54 mm
    ø 2.25 / 2.12 “
    minimum turning radius**
    24 m
    80 ft
    Dimensions pit cradle LxWxH
    2.0 x 0.90 x 1.25 m
    6.6 x 3.0 x 4.1 ft
    dimensions hydraulic power pack LxWxH
    1.95 x 0.94 x 1.75 m
    6.5 x 3.1 x 5.78 ft
    dimensions Mixing and Pumping Station LxWxH
    1.45 x 0.75 x 1.0 m
    4.8 x 2.5 x 3.3 ft
    weight of the pit cradle
    1’000 kg
    2’200 lbs
    weight of hydraulic power pack
    900 kg
    1980 lbs
    weight of Mixing and Pumping Station
    205 kg
    451 lbs