Rammer 2155E embraces the very latest in hydraulic hammer design with its slim body, robust housing made of wear resistant steel, a replaceable bottom plate and others. A key feature of the 2155E is its new design that provides exceptional flexibility to match the hammer precisely to application and material requirements by choosing from a range of options as “retrofit”.  The Rammer 2155E comes with the remote monitoring hardware RD3 installed.

SPECIFICATION

Minimum working weight, flange mounted  *1 1240 kg 2730 lb
Weight 1040 kg 2290 lb
Working length 2198 mm 86.5 in
Impact rate (frequency) 490 – 780 bpm
Operating pressure 140 – 160 bar 2030 – 2320 psi
Pressure relief setting  *2 220 bar 3190 psi
Pressure relief max 240 bar 3480 psi
Oil flow range 120 – 180 l/min 31.7 – 47.6 gal/min
Back pressure max 10 bar 145 psi
Input power 48 kW 64 hp
Tool diameter 118 mm 4.65 in
Pressure line connection (IN) ORFS ISO 8434-3 ( 1 11/16-12 UN )
Return line connection (OUT) ORFS ISO 8434-3 ( 1 11/16-12 UN )
Pressure line size, min. inner diameter 26 mm 1.02 in
Return line size, min. inner diameter 26 mm 1.02 in
Grease connection Tema 2520
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, optimum 19 – 22 t 41900 – 48500 lb
Carrier weight, range  *3 16 – 26 t 35300 – 57300 lb
Noise level, measured (2000/14/EC) 124 dB(A)
Noise level, guaranteed (2000/14/EC) 128 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)