555 HOT

Key specs

Product Weight


Product Carrier Weight


Oil Flow Range

36-90 l/min

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Rammer's 555 heat resistant hydraulic hammer, has been designed to withstand the toughest of applications that this size of hammers may be utilized in. Heat resistant seals and heavy duty housing protect vital components and ensure that no job is too tough.



  • Single lower tool bushing
  • Membrane type accumulator
  • Twin-handed
  • No tie rods
  • CBE+ (Constant blow energy plus)
  • Flange mounting
  • Heavy Duty Housing
  • Heat Resistant Seals


  • Metallurgical industry

Compatible with Standard Chisel Tool, Moil Point Tool, Asphalt Cutting Parallel Tool, Asphalt Cutting Traverse Tool, Compacting Plate Tool and Special Tool Grease.

Metric Imperial
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 80-130 bar 1160-1885 psi
Pressure relief min *2 130-180 bar 1885-2610 psi
Pressure relief max 220 bar 3190 psi
Pressure in LP-circuit 30-32 bar 435-465 psi
Oil flow range 36-90 l/min 9.2-23.8 gal/min
Back pressure max 20 bar 290 psi
Input power 19.5 KW 26 hp
Tool diameter 72 mm 2.83 in
Pressure line connection (IN) BSPP-internal 3/4 in
Return line connection (OUT) BSPP-internal 3/4 in
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, optimum 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 *4 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 Minimum setting = actual operating pressure + 50 bar or 725 psi *3 minimum inner diameter *4 Check carrier allowed attachment weight from carrier manufacturer. Check application requirements.