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HR 260

Description

The HR 260 is a self erecting, 75 ton 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 Walls
– Execution of Double Head drilling
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 it’s force on the rotary, and is principally utilized for drilling large diameter bore holes.  The rotary is able to work with a stroke of 6.100 mm (20 ft) approx. The HR 260 CP uses a parallelogram system of articulation guaranteeing a notable range or motion 1.000 mm (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, 10 m (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.

Technical Data

Rotary
Nominal Torque260 KNm192,000 lbsft
Nominal Pull-Back (CP Version)200 – 280 KN45,000 – 63,000 lbs
Nominal Pull-Back (THD Version)200 – 200 KN45,000 – 45,000 lbs
Unloading Speed140 rpm
Stroke6.100 mm (CP version) 10.000 mm (THD version)20 ft (CP version) 33 ft(THD versione)
Winches
Main Winch Nominal Pullback240 – 260* KN54,000 – 58.500* lbs
Secondary Winch Nominal Pullback80 – 120 – 180 KN18,000 – 27,000 – 40,500 lbs
Engine
BrandCATERPILLAR
ModelC13
Power328 KW @ 2.100 rpm440 HP @ 2,100 rpm
Hydraulic System
Hydraulic Oil Tank800 liters211 gal
Fuel Tank430 liters114 gal
Crawler
Length5.450 mm17.9 ft
Width3.000 – 4.300 mm10 – 14 ft
Shoes900 mm3 ft
Weight
Approx Weight75 ton165,000 lbs

Working Characteristics

Works With Augers & Buckets
Max Diameter2.600 mm8.5 ft
Max Diameter With Casings2.300 mm (CP version) 2.000 mm (THD version)7.5 ft (CP version) 6.5 ft (THD version)
Depths40 – 50 – 60 – 80* m131 – 164 – 197 – 263* ft
Works With Casing Oscillator
Max Diameter1.600 mm5.2 ft