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B420 XP-2 CFA

The Casagrande B420 XP-2 CFA is the 2nd largest Casagrande hydraulic piling rig with HD forward rigging mast for the construction of, medium - large diameter foundations
  • 450 kW

    Engine Power

  • 1200 MM

    CFA Diameter

  • 470 kNm

    Rotary Head Torque

  • 137 T

    Operating Weight

Catalog icon
Product Catalogue B420-Casagrande-Piling-Rig
  • About
  • technical
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Casagrande’s new series of XP-2 hydraulic piling rigs are designed and built using the latest state-of the-art techniques. A range of machines engineered to satisfy the needs of the most demanding contractor with emphasis on performance, reliability and economy.

The Casagrande B420 XP-2 is a multifunction machine designed to drill boreholes, to insert and extract casings, to power a casing oscillator, for piling by the continuous flight auger method and ready for conversion in diaphragm wall equipment.

Due to the high torque of the rotary head of up to 470 kNm, the HD kelly bars and a powerful winch, the B420 XP-2 can rapidly drill deep and large piles in hard soils. The crowd winch will drive casings deep into the ground with extreme accuracy having a line pull of 690 kN and rotary head stroke of 26 m.

“Keep the operator happy in a comfortable working environment” is our formula for added productivity. The B420 XP-2 is designed to satisfy the severe European Union standards on safety and is manufactured to comply with the ISO 9001 requirements on quality.


The Smart Power Management (SPM) is an intelligent engine power management system that improves performances and productivity of the machinery. The SPM system monitors the momentary power flows and immediately allocates the available power to the different jobs, so the operation function has always the maximum power available.


The XP-2 hydraulic power system uses the Full Load Sensing (FLS) technology. Unlike the common hydraulic
managing systems, the FLS pressurizes only the required amount of oil requested by users thanks to the back-action between pumps and distributors. It allows to manage the power demands and reduces dissipations, achieving up to the 25% of fuel saving (calculated on the basis of a theoretical working cycle).


The B420 XP-2 has a very low sound emission level as a result of the of sound-absorbing materials and oil heat exchangers, designed for reducing the overall noise level. The layout of the machine and the wide openings of the canopy offer comfortable and easy access for inspection and maintenance. The machine conforms to the last international standards to guarantee the maximum safety of the operations.


The XP-2 control system offers the following advantages for the operator and the supervision of the work: monitoring of all working function, diagnostic of the working systems to ensure the constant monitoring of the status of sensors and components, easy conversion in any drilling arrangement, friendly customization of working functions e.g. mappings of torque and speed for EP rotary head, remote rigs assistance, diagnostic, monitoring of working parameters.

Technical Data

Max depth C.F.A. 38 m
Max diameter C.F.A. 1200 mm
Engine power 450 kW
Width of crawler 3200÷5200 mm
Shoes width 1000 mm


Line pull 435 kN
Line pull 170 kN
Extraction force 460 kN
Crowd force 460 kN
Stroke 7000 mm
Extraction force 690 kN
Crowd force 690 kN
Stroke 26000 mm


Torque 470 kNm
Drilling speed 50 rpm


Weight in working condition 138 t

Standard Equipment

  • SPM control system – Smart Power Management
  • 12″ touch screen display for visualization and drilling parameter settings
  • Mast lifting and lowering aid
  • Drilling depth measurement and automatic mast verticality control
  • Automatic idling mode with engine start/stop for fuel saving
  • Smart lowering and overload protection for main winch
  • Rotary shaking system for tool discharge
  • Crowd force control for pull down winch and crowd ram
  • CFA feed control
  • Hook on auxiliary line
  • Protective roof guard (FOPS compliant)
  • Air condition system
  • Cab side catwalk
  • Electric refueling pump
  • Undercarriage with removable tracks and 4 lifting cylinders


  • Lateral catwalks and handrails
  • Railings on upper structure
  • Water pre-heating system for starting engine at low temperatures
  • Automatic centralized greasing system
  • Radio remote control for rigging/derigging
  • Video unit with two cameras and one 7″ monitor to control winches and the rear of the machine
  • Camera for panoramic view of the area around the machine
  • Automatic self alignment on drilling axis
  • Casagrande FleetMaster remote rig control and monitoring via internet
  • Transport kit according to required transport configuration


  • Rotary head extension to increase the drilling diameter
  • Mast extension for extended version
  • Cardanic joint for rotary head
  • H50 hydraulic torque multiplier for driving casings
  • Max. torque 575 kNm
  • Double rotary head system VdW3015
  • Main controlled winch 375 kN nominal line pull
  • Main controlled winch 500 kN nominal line pull
  • Main free fall winch 315 kN nominal line pull
  • Load cell on auxiliary winch for line pull monitoring
  • Pull control and overload protection for pull-down winch
  • Arrangement for casing oscillator
  • Casing oscillator GCL 1500 / 2000


  • Measurement and visualization of extraction force
  • Rotating CFA cleaner hydraulically operated
  • Star CFA cleaner
  • CFA lower guide with hydraulic opening
  • Crowd winches for CFA. Max nominal crowd force 2×68 kN
  • Hydraulic vibrator for cages
  • CFA feed control
  • Instrument for measuring, displaying and recording of drilling parameters. Complete with software for processing data on a PC
  • Instrumentation for continuous extraction of CFA

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