The 255E is your no fuss  solution for carriers between 0.9 and 2.5  tons. Protected by their box type housing, these hammers produce less noise and vibration, whilst they are strong enough to take a beating. The Rammer 255E comes with the remote monitoring hardware RD3 installed.

SPECIFICATION

Minimum working weight, flange mounted  *1 110 kg 240 lb
Weight 88 kg 190 lb
Working length 842 mm 33.1 in
Impact rate (frequency) 600 – 3200 bpm
Operating pressure 95 – 150 bar 1380 – 2175 psi
Pressure relief setting  *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, min. inner diameter 12 mm 0.47 in
Return line size, min. inner diameter 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
Skid steer, robot weight, optimum 0.9 – 1.4 t 2000 – 3100 lb
Skid steer, robot weight, range  *3 0.8 – 1.7 t 1800 – 3700 lb
Miniexcavator weight, optimum 1.4 – 2.1 t 3100 – 4600 lb
Miniexcavator weight, range  *3 1.2 – 2.5 t 2600 – 5500 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   Minimum setting = actually measured operating pressure + 50 bar or 725 psi
*3   Check carrier allowed attachment weight from carrier manufacturer. Check application requirements.

Specifications are subject to change without notice (Monday, July 1, 2019)