TERRA Trenchless Technology JET 8522 S Directional Drill | Lease/Finance or Buy

TERRA-JET 8522 Directional Drill

TERRA-JET 8522 Directional Drill
Specifications
BRAND  TERRA Trenchless Technology
MODEL  JET 8522 S
PRODUCT DESCRIPTION
Horizontal directional drilling with the TJ 8522 S
  • with comfortable wide driver’s cab 
  • good view around, the cab has large windows all around 
  • the operators seat can be turned by 180° 
  • drill rod changer with 120 m (400 ft) of drill rods 
  • on-board computer with touch screen for digital display, control, documentation and diagnostics 
  • automatic greasing for each drill rod thread 
  • automatic release of drilling fluid pressure before each rod change 
  • computer recording of each bore (forces, torque, fluid volume and pressure according DVGW 321 
  • optional without driver’s cabin and without board computer
  • for drilling lengths up to 400 m (1300 ft) and bore channels up to Ø 1’000 mm (40”) (depending on ground conditions) 
  • 25 % better efficiency rate due to new intelligent hydraulic system with four independent hydraulic circuits 
  • "all on board", including the complete mixing system (without tank) 
  • any tank (2’000 - 10’000 ltr, 500 – 2’500 gal) can be used 
  • shortest installations time, the bore can start after a few minutes 
  • high productivity through the automatic drill rod changer 
  • standard equipped with ADBS (Automatic Drilling and Backreaming System), pat. 
  • all main functions are operated via 2 multifunctional joysticks 
  • THRUST and ROTATION are driven by separated circuits. Both functions are driven proportionally 
  • maximum thrust and pullback forces even at low pullback speeds (thrust and pullback forces are produced by a hydraulic cylinder!) 
  • Rock drilling possible with TERRA-ROCK Drilling Tools 
  • Currency: 24 Volts 
  • the rubber crawler protects the surfaces 
  • Environmentally friendly. The Diesel engine fulfils today’s Emissions Limits in Europe (EURO 3 A), USA (TIER 3) and Japan. 
Technical Data
  • Pullback force220 kN (22 to)48’400 lbs
  • Thrust force110 kN (11 to)24’200 lbs
  • Engine powerPerkins 97 kW (132 PS)Perkins 97 kW (132 HP)
  • Torque, 1st speed8’500 Nm6’250 ft.lbs
  • Torque, 2nd speed4’250 Nm3’125 ft.lbs
  • Drill rod rotation speed, 2nd speed123 U/min123 rpm
  • Drill rod rotation speed, 1st speed58 U/min58 rpm
  • Drilling fluid volume - Pilot bore122 ltr/min @ 60 bar32 gpm@ 870 psi
  • Drilling fluid - Backreaming400 ltr/min @ 19 bar105 gpm @ 300 psi
  • drilling speed - quick gear35 m/min115 ft/min
  • drilling speed - at full load15 m/min50 ft/min
  • pullback speed - quick gear17 m/min56 ft/min
  • pullback speed - at full load7 m/min23 ft/min
  • Guaranteed sound power level Lwa103 dB(A)103 dB(A
  • noise emission at operator’s ear - with cabin68 dB(A)70 dB(A)
  • noise emission at operator’s ear - without cabin83 dB(A)85 dB(A)
  • Ø of the pilot bore90 – 170 mm3.5” – 6.7”
  • Maximum backream diameter*Ø 1’000 mmø 40”
  • Maximum drilling length*400 m1300 ft
  • Drill rods, length3.0 m10 ft
  • Drill rod, diameter70 mm2.75“
  • Minimum turning radius **45 m115 ft
  • Dimensions L x W x H with cabin6.40 x 2.25 x 2.55 m21.1 x 7.4 x 8.4 ft
  • weight with cabin incl. 40 drill rods, ø 70 mm9 to19’800 lbs

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