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CFA » HR 300-570 CFA

Main specs overview

  • Model name
  • HR 300-570 CFA
  • Category
  • CFA
  • Max Torque
    (KNm)
  • 570
  • Max Diameter
    (mm)
  • 1.200
  • Max Depth
    (m)
  • 24 + 8 = 32
  • 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 171,800 - 199,150 - 221,300 lbsft
nominal pullback 230 KN x 4 = 920 KN 51,706 lbs x 4 = 206,824 lbs
nominal pulldown 35 KN x 2 = 70 KN 7,875 lbs x 2 = 15,750 lbs
stroke 24.500 mm 80.4 ft
winches
1st winch nominal pullback 300 KN 67,443 lbs
2nd winch nominal pullback 120 - 180* KN 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 lit 211 gal
fuel tank 580 lit 153 gal
crawler
length 5.900 mm 19.3 ft
width 3.000 - 4.500 mm 9.5 - 15 ft
shoes 900 mm 3 ft
weight
approx weight 85 - 95 ton 187,500 - 209,380 lbs

Working characteristics

Works with Continuous Flight Auger
Max Diameter 1.200 mm 4 ft
Depths 24 + 8 = 32 m 78.5 + 26.5 = 105 ft

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