The Rammer 4099E has been designed using a revolutionary new operating principle that combines stroke length, blow energy and Rammer’s idle blow protector, allowing the hammer to be adjusted to match individual carriers and applications, improving hydraulic efficiency and safety.

Minimum working weight, kg (lb) 3380-3540 (7450-7800)
Impact rate, Long Stroke, bpm 400-560
Impact rate, Short Stroke, bpm 520-700
Operating pressure, bar (psi) 150-160 (2175 - 2320)
Pressure relief, min bar (psi) 210 (3045)
Pressure relief, max bar (psi) 230 (3335)
Oil flow range, l/min (gal/min) 250-350 (66.0-92.5)
Back pressure, max bar (psi) 12 (175)
Input power, kW (hp) 93 (125)
Tool diameter, mm (in) 166 (6.54)
Carrier weight, allowed range t (lb) 36-55 (79400-121300)
Noise level, measured sound power level, LWA, dB 126
Noise level, guaranteed sound power level, LWA, dB 130