DAWSON 450 kN Excavator Mounted Vibrator (EMV450)

This high frequency excavator mounted vibrator is used for VIBRATORY PILE DRIVING and EXTRACT profiles (sheet piles, tubes, H piles, wooden piles, etc.) when constructing retaining walls, special foundations and civil engineering structures: sheet pile curtain walls, king post walls, bank protectors, etc.

Plug and play !!! You can easily install it on a 25t to 40t excavator by connecting only 3 hoses (1 double effect pressure/return line and 1 drain line)

Equipment :

1 EMV450 DAWSON VIBRATORY PILE DRIVER
1 Hoses set – 3 meters
1 Storage and transport stand
1 Lifting chain

Year of manufacture : 2010
Counter hours : -
Price excl.taxes : On request
Location : France
Technical details :
  • Centrifugal force (kN) : 450
  • Eccentric moment (Nm) : 69
  • Frequency (rpm) : 2 460
  • Amplitude (mm) : 12
  • Weight (kg) : 1 265
  • Pressure needed (bar) : 350
Option :

Used standard adaptor bracket to connect EMV to excavator boom = 1 300 €
New close pile clamp - max.300x300mm (for wooden pile or concrete pile) = 6

Technical details :
  • Centrifugal force (kN) : 450
  • Eccentric moment (Nm) : 69
  • Frequency (rpm) : 2 460
  • Amplitude (mm) : 12
  • Weight (kg) : 1 265
  • Pressure needed (bar) : 350
  • Flow needed (l/min) : 195 +30% approx. to ensure a sufficient permanent flow
  • Max flow admissible (l/min) : 350
  • Excavator range (ton) : 25 to 40

Advantage of EMV

The Dawson excavator mounted vibrators have been designed specifically to work in place of an excavator bucket to drive and extract piles. The pile can be lifted to vertical using the built-in lifting chain where it is then gripped tightly in a powerful hydraulic jaw. Once secured, the pile is then vibrated with high frequency vibrations so as to ‘fluidise’ the soil resisting the pile. Down-crowd force applied by the excavator boom, coupled with the self-weight of the pile and the vibrator, provides sufficient force to push the pile into the ground. Naturally, the process works in reverse for pile extraction. The equipment offers a highly productive and cost effective piling rig based around a standard, readily available excavator!

Principal Advantages

  • Compact, robust and reliable - no electrics!
  • Simple and fast attachment to excavator
  • Minimal height to maximise pile length
  • Slim design to drive single sheet piles
  • High power to weight ratio
  • Universal joint suspension for easy alignment of piles
  • Extremely low vibration transmitted to the excavator
  • Enviromentally friendly - low noise/localised directional vibration
  • Automatic hydraulic clamp opération
  • Flexiblity in application
  • Flow regulator prevents excessive oil supply to vibrator