555

Rammer 555 rockbreakers have been designed to satisfy the specific demands of rental fleet operators. Weighing 275 kg, Rammer 555, is designed for optimum carrier compatibility and installation flexibility. A flange top-mount for adapter installation, pivoting hose connecting block, reversible manifold, right or left-hand hose connections, and the ability to accept a wide range of oil flows and pressures allow Rammer 555 to work with a broad range of carrier optimum fleet utilisation.

Rammer 555 rockbreakers benefit from 40 percent more power and 20 percent higher blow frequencies than the model it replaces for enhanced power-to-weight ratios and highest possible productivity levels.

Features

  • Single lower tool bushing
  • Membrane type accumulator
  • Twin-handed
  • Sound supressed
  • Ramlube I (Optional)
  • CBE+ (Constant blow energy plus)
  • No tie rods

Applications

  • Primary Demolition
  • Secondary Demolition
  • Trenching
  • Asphalt Cutting
  • Ground Compacting

Specifications

Weight 228 kg 500 lb
Working length 1261 mm 49.6 in
Minimum working weight, flange mounted  *1 275 kg 610 lb
Impact rate (frequency) 600 - 1800 bpm
Operating pressure 90 - 140 bar 1305 - 2030 psi
Pressure relief min  *2 140 - 200 bar 2030 - 2900 psi
Pressure relief max 220 bar 3190 psi
Pressure in LP-circuit 36 - 38 bar 520 - 550 psi
Oil flow range 36 - 90 l/min 9.2 - 23.8 gal/min
Back pressure max 20 bar 290 psi
Input power 21 kW 28 hp
Tool diameter 72 mm 2.83 in
Pressure line connection (IN) BSPP-internal 3/4"
Return line connection (OUT) BSPP-internal 3/4"
Pressure line size  *3 19 mm 0.75 in
Return line size  *3 19 mm 0.75 in
Optimum oil temperature 40 - 60 °C 104 - 140 °F
Allowed oil temperature range -20 - 80 °C -4 - 176 °F
Optimum oil viscosity at operating temperature 30 - 60 cSt
Allowed viscosity range 20 - 1000 cSt
Miniexcavator, tractor backhoe weight, Optium 3.6 - 5.8 t 7900 - 12800 lb
Miniexcavator, tractor backhoe weight, Range  *4 3.2 - 8.0 t 7050 - 17600 lb
Skid steer, robot weight, optimum 2.4 - 3.9 t 5290 - 8600 lb
Skid steer, robot weight, range  *5 1.9 - 5.3 t 4200 - 11680 lb
Noise level, measured (2000/14/EC) 118 dB(A)
Noise level, guaranteed (2000/14/EC) 122 dB(A)
*1   Includes average mounting bracket and standard tool
*2   Minimun setting = actual operating pressure + 50 bar or 725 psi
*3   minimum inner diameter
*4   Check carrier's lifting capacity from carrier manufacturer
*5   Check carrier allowed attachment weight from carrier manufacturer. Check application requirements.

 

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