Specification

Minimum working weight, flange mounted  *1230 kg510 lb
Weight190 kg420 lb
Working length1126 mm44.3 in
Impact rate (frequency)700 - 2600 bpm
Operating pressure100 - 170 bar1450 - 2465 psi
Pressure relief min  *2150 - 220 bar2175 - 3190 psi
Pressure in LP-circuit36 - 38 bar520 - 550 psi
Oil flow range40 - 70 l/min10.6 - 18.5 gal/min
Back pressure max20 bar290 psi
Input power19.8 kW27 hp
Tool diameter56 mm2.20 in
Pressure line connection (IN)BSPP-internal 3/4"
Return line connection (OUT)BSPP-internal 3/4"
Pressure line size  *316 mm0.63 in
Return line size  *316 mm0.63 in
Optimum oil temperature40 - 60 °C104 - 140 °F
Allowed oil temperature range-20 - 80 °C-4 - 176 °F
Optimum oil viscosity at operating temperature30 - 60 cSt
Allowed viscosity range20 - 1000 cSt
Miniexcavator weight, optimum3.1 t6800 lb
Carrier weight, optimum2.1 - 4.6 t4600 - 10100 lb
Carrier weight, range  *41.8 - 5.2 t4000 - 11500 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 = actual operating pressure + 50 bar or 725 psi
*3   minimum inner diameter
*4   Check carrier allowed attachment weight from carrier manufacturer. Check application requirements.

Specifications are subject to change without notice (Wednesday, February 14, 2018)

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News and case stories

Wednesday, October 8, 2014, CaseStory

An Australian construction company has put its faith in a small Rammer breaker following a highly successful trial against a competitive brand. The outstanding performance of the small Rammer 455 breaker, combined with the commitment to service and support from the local dealer, Walkers Hammers, were both instrumental in the companies purchasing decision.