MAIT HR260THD - PILING EQUIPMENT

Mait HR260THD image

DESCRIPTION

The HR 260 is a self erecting, 75 tons drilling rig particularly suitable for drilling great diameters using the kelly bar system and with casing tubes directly with the rotary. The HR 260 is able to perform the following applications:


  • Drilling large diameters and great depths with augers or buckets
  • Execution of direct rotary drilling with casings and casing oscillator
  • Continuous Flight Auger (CFA) & Diaphragm Walling
  • Execution of Double Head drilling
  • Driven piles with hydraulic hammers


The HR 260 is available in the following two versions:
HR 260 CP - the standard version is equipped with a Pull-down Cylinder which exerts its force on the rotary and it is principally utilized for drilling large diameter bore holes. The rotary is able to work with a stroke of 6.100 mm (20ft) approx.
The HR 260 CP uses a parallelogram system of articulation guaranteeing a notable range or motion up to 1.000mm (3.3 ft)
HR 260 THD - available upon request, the THD system moves the rotary by utilizing a crowd winch, allowing the rotary to be used along a larger stroke of the mast, 10m (33 ft) approx.
The THD version is particularly useful for driving and extracting casing tubes directly by the rotary and, without a doubt, increasing your daily productivity.

HR260CP Prev | Next HR180CP

TECHNICAL SPECS

TECHNICAL DATA

Rotary
Nominal torque 260 KNm 192,000 lbsft
Nominal Pulldown-Pullback (CP version)

200 - 280 KN (standard)
300 - 300 KN (on request)

45,000 - 63,000 lbs (standard)
67,500 - 67,500 lbs (on request)

Nominal Pulldown-Pullback (THD version)
200 - 200 KN 45,000 - 45,000 lbs
Unloading Speed

140 rpm

Stroke

10.000 mm

33 ft

Winches
Main Winch nominal Pullback 240 KN 54,000 lbs
Auxiliary Winch nominal Pullback 80 - 120* - 180* KN 18,000 - 27,000* - 40,500* lbs
Diesel Engine: CATERPILLAR C13 ACERT
Power 328 KW @ 2.100 rpm 440 HP @ 2,100 rpm
Hydraulic Installation
Hydraulic Oil Tank 800 litri 211 gal
Fuel Tank 430 litri 114 gal
Expandable Crawlers
Length 5.450 mm 18 ft
Width 3.000 - 4.300 mm 9.5 - 14 ft
Shoes 900 mm 3 ft
Approx. Weight 75 ton 165,000 lbs
* on request

WORKING CHARACTERISTICS

WORKING CHARACTERISTICS

Works with Augers & Buckets
Max Diameter

2.600 mm

8.5 ft

Max Diameter with Casings

2.000 mm

6.5 ft

Depths 40 - 50 - 60 - 70 m 131 - 164 - 197 - 230 ft
Works with Casing Oscillator
Max Diameter 1.600 mm 5.2 ft

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