The Rammer 1655E hydraulic hammer is suitable for carriers in the 12 to 20 tonne range. The 870 kg hammer with an impact rate of 500 – 940 blows per minute, features Rammer’s Fixed Blow Energy operating principle, which ensures optimum impact energy with every blow, regardless of hydraulic flow fluctuations. The Rammer 1655E comes with the remote monitoring hardware RD3 installed.

SPECIFICATION

Minimum working weight, flange mounted  *1 1090 kg 2400 lb
Weight 870 kg 1920 lb
Impact rate (frequency) 540 – 920 bpm
Operating pressure 135 – 145 bar 1960 – 2105 psi
Pressure relief setting  *2 190 bar 2755 psi
Pressure relief max 220 bar 3190 psi
Oil flow range 90 – 130 l/min 23.8 – 34.3 gal/min
Back pressure max 10 bar 145 psi
Input power 31 kW 42 hp
Tool diameter 115 mm 4.53 in
Pressure line connection (IN) SAE 6000 psi 1″
Return line connection (OUT) SAE 6000 psi 1″
Pressure line size, min. inner diameter 26 mm 1.02 in
Return line size, min. inner diameter 26 mm 1.02 in
Grease connection BSPP-internal 3/8″
Air connection (A) BSPP-internal 3/8″
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
Carrier weight, range  *3 12 – 20 t 26500 – 44100 lb
Noise level, measured (2000/14/EC) 123 dB(A)
Noise level, guaranteed (2000/14/EC) 127 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 (Thursday, April 11, 2019)