rammer

255

Rammer’s Small range rockbreakers are designed to deliver high blow frequency and power where and when you need it regardless of the application. The Rammer 255, Rammer 355 and Rammer 455 are your no fuss, Plug and play solution for carriers between 1.2 and 5.2 tonne. Protected by their box type housing, these hammers produce less noise and vibration, whilst are strong enough to take a beating. Rammer’s plug and play theory makes installation quick and easy, and makes work with multiple carriers a dream.

Features

  • Single lower tool bushing
  • Membrane type accumulator
  • Sound supressed
  • CBE (Constant blow energy)
  • No tie rods
  • Light weight

Applications

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

Specifications

Weight 88 kg 190 lb
Working length 842 mm 33.1 in
Minimum working weight, flange mounted  *1 110 kg 240 lb
Impact rate (frequency) 600 - 3200 bpm
Operating pressure 95 - 150 bar 1380 - 2175 psi
Pressure relief min  *2 150 - 200 bar 2175 - 2900 psi
Pressure relief max 220 bar 3190 psi
Pressure in LP-circuit 38 - 40 bar 550 - 580 psi
Oil flow range 15 - 35 l/min 4.0 - 9.2 gal/min
Back pressure max 20 bar 290 psi
Input power 8.8 kW 12 hp
Tool diameter 40 mm 1.57 in
Pressure line connection (IN) BSPP-internal 1/2"
Return line connection (OUT) BSPP-internal 1/2"
Pressure line size  *3 12 mm 0.47 in
Return line size  *3 12 mm 0.47 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 weight, optimum 1.4 - 2.1 t 3100 - 4600 lb
Miniexcavator weight, range  *4 1.2 - 2.5 t 2600 - 5500 lb
Skid steer, robot weight, optimum 0.9 - 1.4 t 2000 - 3100 lb
Skid steer, robot weight, range  *4 0.8 - 1.7 t 1800 - 3700 lb
Noise level, measured (2000/14/EC) 115 dB(A)
Noise level, guaranteed (2000/14/EC) 119 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 allowed attachment weight from carrier manufacturer. Check application requirements.

 

More Information

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