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FD 70 Hydromill – Hose Reel Version

The FD 70 Hydromill hose reel version, with heavy duty wheel assembly and powerful hydraulic motors to deal with very thick diaphragms and under extreme ground conditions.
  • 100 (optional 120m) M

    Excavation Depth

  • 760-1500 MM

    Width of Trench

  • 2800 / 3150 MM

    Length of Trench

  • 2 x 100 kNm

    Torque at the Wheel Axle

  • 0-30 RPM

    Wheel Speed

  • 450 M3/H

    Capacity of Mud Pump

  • 45-50000 KG

    Mill Weight

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Product Catalogue FD70-hydromill Hose Reel Brochure
  • about
  • technical

The Casagrande Hydromill FD70 – Hose Reels version is designed with heavy duty wheel assembly and special hydraulic motors to deal with very thick diaphragms and under very demanding ground conditions.

The equipment consists of a heavy steel frame with two drive gears, attached to its lower section, which rotate in opposite directions around horizontal axes. The soil, or rock, is “milled” by the cutting wheels from the bottom of the trench and continuously moved, mixed with slurry, and removed by a powerful flushing pump.


The hydromills utilizes a wealth of engineering expertise gained by Casagrande in many years of geotechnical available for the application of electronics to record depth, verticality and cutting force and to provide with instant information to control performance and maximize on production. The all-round ruggedness of hydromills are complemented by attention to details. The suspension of the hose reels by automatic winches and the fitting of a powerful flushing pump to remove cuttings.

Whether in hard or soft soils, a choice of cutters is available to match every condition and demands of different wall width scan be easily met, simply by changing the cutter wheels and the interchangeable guides. All models of the hydromills are designed to work on the principle of reverse circulation. Cutting chains are used enable the equipment to cut through hard strata, to guarantee the cut throughout the wall width and to provide better joints and excellent interlocking.

Depth of excavation 100 m 328 ft
Width of trench 760 ÷ 1500 mm 2.5 ÷ 4.9 ft
Length of trench 2800 / 3150 mm 9.2 / 10.3 ft
Torque at the wheel axle 2 x 100 kNm 2 x 73,760 lbf·ft
Wheel speed 0 ÷ 30 rpm 0 ÷ 30 rpm
Capacity of mud pump 450 m³/h 15,890 ft³/h
Mill weight 45 ÷ 50 t 44.3 ÷ 49.2 ton

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