Soil Buckets
Casagrande Soil Buckets-
600-2500 MMRotary Diameter
-
160 kNmRotary Head Torque
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130x130/200x200 MM
Tool Diameter
- Casagrande Soil Buckets
- Gold Standard Soil Buckets
- Silver Standard Soil Buckets
CASAGRANDE BUCKET TOOLS
Are recommended for drilling layers of soil and rock in presence of water and when the drilling technology uses bentonite. As result of different job site reports, buckets are designed in two different ways:
· Single opening: suitable for fine grained soils and bored pile up to diameter 620 – 2680mm. particularly indicated in case of casings application and coarse gravel.
· Double opening: suitable for fine grained soils and bored pile over diameter 620 – 2680mm. particularly indicated for secant pile walls
Designed with a rotating bottom to load drilled material; a vent pipe making the water or bentonite pass through reduces the pressure on the tool so that it can be lifted up easily.
Provided with mechanical opening system to unlock bottom and release drilled material they can be supplied with different type of Teeth and Round Shank Chisel accordingly with soil and rock hardness.
Buckets diameters match perfectly Casagrande casings in both alternatives: Screw and Labyrinth types. Their dimensions can be changed on Client needs and they are available on request.
The weights are approximate values.
· Suitable for drilling in stratification with hardness range of 0 – 12.5 MPa
· Mainly for fine grained soil, Dense sand and gravel Silt, and clay under water with Soft to stiff silt clay, including Loose to medium dense sand and gravel
TECHNICAL SPECIFICATIONS
Gold Standard
Cylinder Made of steel ASTM 516/70 – Thickness = 20 mm – Height = 1250 mm
Drive Plates Fixed bottom in steel ASTM 516/70 – Thickness = 30/40 mm – Drive Plates in Hardox HB 400 – Thickness = 30/40 mm – Collar plates equipped with round shank chisel Ø 30/38 mm – Tung Studs HB 900
Blades In Hardox HB 400 – Thickness = 70 mm
Equipment Teeth Esco 18TL/25T, Esco Ultralock or Betek (recommended)
Pilot bit Interchangeable
Kelly box 130×130 mm / 200×200 mm made of heat-treated cast steel Upper and lower antiwear plates in Hardox HB 400 Lower reamers plates in Hardox HB 400 Mobile upper reamer plate Ventilation system to prevent the formation of vacuum during extraction
Silver Standard
Cylinder Made of steel ASTM 516/70 Thickness = 20 mm Height = 1250 mm
Drive Head Plate Fixed bottom in steel ASTM 516/70 Thickness = 30/40 mm Rotating bottom in Hardox HB 400 Thickness = 30/40 mm Collar plates equipped with round shank chisel Ø 30/38 mm Tung Studs HB 900
Blades In Hardox HB 400 Thickness = 70 mm
Equipment Teeth Esco 18TL/25T, Esco Ultralock or Betek (recommended)
Pilot bit Interchangeable
Kelly box 200×200 mm made of heat-treated cast steel 130×130 mm Upper and lower anti-wear plates in Hardox HB 400 Lower reamers plates in Hardox HB 400 Mobile upper reamer plate Ventilation system to prevent the formation of vacuum during extraction
