RF SERIES VIBRO HAMMERS

With the introduction of the RF (Resonance Free) Vibro Hammer Series, Tramac brings cutting-edge technology to bear on many of the environmental problems surrounding pile driving and extraction jobs. RF vibros start up and shut down with the the hammer's eccentric moment desynchronized, completely eliminating harmful soil resonance. Once operating frequency has been reached, the eccentric moment is re-synchronized, and the vibro can reach its highest amplitude without producing destructive vibrations.

Better for the Environment, Better for the Job
Using RF Vibro Hammers, operators can work much closer to buildings, utility lines, fiber optic lines, and other vulnerable spaces than with conventional equipment. During operation, amplitude can be adjusted so that the maximum permitted level is reached but not exceeded. In addition, these vibros cause significantly less stress to the carrier's boom, reducing the potential for damage and down time.

Specifications 5RF-B 5RF-SH 7RF-B 7RF-SH 11RF-B
Minimum
Carrier HP
HP 114 114 139 139 247
Eccentric
Moment
in. lbs/
kgm
435/
5
435/
5
609/
7
609/
7
957/
11
Centrifugal
Force
tons/
kN
39/
345
39/
345
46/
410
46/
410
75/
670
Extraction
Force
tons/
kN
13.5/
120
13.5/
120
13.5/
120
13.5/
120
20/
180
Frequency
rpm 2500 2500 2300 2300 2350
Required
Oil Flow
gpm/
lpm
40/
150
40/
150
49/
185
49/
185
86/
325
Dynamic Wt.
(w/clamp)
lbs/
kg
2315/
1050
2535/
1150
2315/
1050
2535/
1150
4410/
2000
Total Wt.
(w/clamp)
lbs/
kg
2932/
1330
4520/
2050
2932/
1330
4520/
2050
6052/
2745
Rec.
Carrier Wt.
US tons 22-32 22-32 32-40 32-40 45-55