ABI Mobilram Vibratory Hammer (MRZV)

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

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