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TUNNELS » GEA 550 J

Main specs overview

  • Model name
  • GEA 550 J
  • Category
  • TUNNELS
  • Max torque
    (KNm)
  • 7,5 - 13*
  • Max – min working angle
  • 0° - 10°
  • Max hole length
    (mm)
  • 8.500
  • Weight
    (ton)
  • 35

More details

Description

The MAIT GEA 550J is a powerful, versatile, and fully hydraulic crawler-mounted drilling rig dedicated to sub-Horizontal drilling function.
Its main applications include jet-grouting and bored piling for pre-consolidation and support of excavation of large diameter tunnels.
All positioning and drilling operations can be performed by a single operator with the remote control, who can work up to 10m distance from the machine or even by means of an additional radio remote control that make it is possible to operate from a greater distance.
The rotation of the mast is obtained by means of two hydraulic slewing rings, for maximum precision and stability during positioning and drilling operations.
The vertical level of the two slewing rings can be adjusted (up to 1 m) for easier alignment with the tunnel axis.
A computerized system, with electronic display, allows monitoring of rotation and inclination angles for easy positioning.

Technical data

engine
brand CATERPILLAR
model 3116
power 170 KW @ 2.200 rpm 230 HP @ 2,200 rpm
Rotary
max nominal torque 7,5 - 13* KNm 5,527 - 9,581* lbsft
rotation speed 0 -  100 / 0 - 550* rpm
rotary horizontal stroke 14.000 mm 46 ft
pullback / pulldown 80 KNm 58,960 lbsft
mast
total length 16.600 mm 54.5 ft
horizontal sliding 1.000 mm 39.37 in
mast rotation ± 105°
various
hydraulic oil tank 400 lit 105.6 gal
fuel tank 250 lit 66 gal
crawler
length 4.450 mm 14.6 ft
width 2.500 mm 8.2 ft
shoes 600 mm 23.6 in
weight
approx. weight 35 ton 77,140 lbs
* on request

Working characteristics

Performance
Max working radius (with Max forward mast sliding and 10° inclination) 6.500 mm 21.3 ft
Min working radius (with 0° inclination) 3.200 mm 10.5 ft
Horizontal hole Max length 8.500 mm 29.7 ft
Horizontal hole Min length 4.200 mm 13.8 ft
Treatment inclination 0° - 10°
Max rotation angle ± 105°
Max drilling diameter 90 - 200 mm 3.5 - 7.9 in

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