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BORED PILES » HR 300-570

Main specs overview

  • Model name
  • HR 300-570
  • Category
  • BORED PILES
  • Max torque
    (KNm)
  • 570
  • Max Diameter
    (mm)
  • 2500
  • Max Depth
    (m)
  • 80
  • Weight
    (ton)
  • 85 - 95

More details

Description

The HR 300-570 is a drilling rig of great dimensions, weighing approximately 90-95 tons. It has been purposely designed without mast articulation in order so the mast is stable and can withstand the high torque of the MCS system (Torque multiplier system exclusively available  from MAIT).  According to your requirements, this rig can be fitted with either a rotary with 233 kNm nominal torque or 270 kNm nominal torque. The HR 300-570 rig succeeds in inserting and extracting casings with a daily  30 % productive increment thanks to the torque multiplier. The MCS system has 57.000 kgm exercised torque from the rotary directly to the casing .
This drilling rig is available in two versions, the difference of each version is indicated by the pull-down system that moves the rotary:
CP version: standard version with pull-down cylinder.
THD version: with crowd winch.
This rig is ideal for every type of drilling in which the operation of casing tubes is very frequent, or a daily constant
- Drilling very deep and large diameters for Bored Piles, Casing Oscillators, and  Continuous Flight Auger
- Drilling in rocky terrains or hard soil
- Drilling “Omega piles” or “Soil Displacement Auger piles” (SDA)
- Diaphragm Walls
- Driven piles with hydraulic hammers.

Technical data

Rotary
Nominal torque Available 233 - 270 - 300 KNm 171,850 - 199,150 - 221,300 lbsft
Nominal torque with MCS (con tubi forma) 570 KNm 420,410 lbsft
Nominal Pull-Back/Pull-Down 300 KN 67,500 lbs
Unloading Speed 150 rpm
Stroke 14.000 mm (THD version) / 6.500 mm (CP version) 46 ft (THD version) 21.5 ft (CP version)
Winches
Main Winch Nominal Pullback 200 - 250* KN 45,000 - 56,200* lbs
Secondary Winch Nominal Pullback 80 - 120* - 180* KN 18,000 - 27,000* - 40,500* lbs
Engine
Brand CATERPILLAR
Model C15
Power 403 KW @ 2.100 rpm 540 HP @ 2,100 rpm
Hydraulic system
Hydraulic Oil Tank 800 liters 211 gal
Fuel Tank 580 liters 153 gal
Crawler
Length 5.900 mm 19.4 ft
Width 3.000 - 4.500 mm 9.8 - 14.8 ft
Shoes 1000 mm 3.3 ft
Weight
Approx. Weight 85 - 95 ton 187,500 - 209,380 lbs

Working characteristics

Works with Augers & Buckets
Max Diameter 2.500 mm (CP version) / 2.300 mm (THD version) 8 ft (CP version) / 7.5 ft (THD version)
Max Diameter with Casings 2.300 mm (CP version) / 2.100 mm (THD version) 7.5 ft (CP version) / 7 ft (THD version)
Depths 40 - 50 - 60 - 80* m 131 - 164 - 197 - 263* ft
Works with Casing Oscillator
Max Diameter 1.600 mm 5.2 ft

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