Mobilram Vibratory Hammer (MRZV)

Hammer & Steel Dual Auger Casing Drive

The Mobilram vibratory hammer with adjustable static moment is suitable for the piling and extracting of steel sections such as sheet pile walls, H-beams and pipes as well as alternative foundation methods like vibro, cast-in-place, gravel, and sand piles.

The vibratory hammer works on the premise that the eccentric weights are adjusted against each other so that no oscillations are generated. After reaching the pre-selected working frequency, the static moment of the eccentric weights is adjusted according soil conditions. When running out, the static moment is switched off followed by the vibrator so that no oscillation points are generated when driving through the natural frequencies of the soil. The operator has the ability to change between the minimum and maximum static moment with the push of a button or adjust defined intermediate positions.

The Mobilram vibratory hammers come in models that range from a driving force of 102 tons up to 154 tons.

MRZV Model
Specifications 17VV 20VV 28VV 30VV
Static Moment (in. lbs.) 0 - 1475 0 - 1735 0 - 2430 0 - 2600
Dynamic Mass (lbs.) 4,640 6,195 6,260 8,810
Nominal Revolutions (min -1) 1,800 3,135 1,800 2,140
Maximum Revolutions (min -1) 2,600 2,600 2,600 2,600
Centrifugal Force at Nominal Frequency (tons) 61 102 102 153
Maximum Centrifugal Force (tons) 76 122 174 228
Maximum Static Extraction Force (tons) 20/25 20 20/33 20/28/30/38
Maximum Oil Pressure (p.s.i.) 5,075 5,075 5,075 5,075
Recommended Installed Power of Carrier (h.p.) 335 - 400 400 - 630 580 - 630 580 - 765
Total Weight (lbs.) 7,145 9,305 9,285 11,620
Transport Weight (lbs.) 7,695 9,790 10,430 12,745

ABI Mabi MRZV Specification Chart

Dimensions (in) 17VV 20VV 28VV 30VV
H 100 115 125 130
B 30 30 25 30
T 65 65 50 65
R 25 25 25 25
S 94 100 120 115
X 70 75 90 85
Transport Dimensions (in) 17VV 20VV 28VV 30VV
h 105 120 140 136
b 40 40 60 60
t 65 65 60 65

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