Rammer 2577E hydraulic hammer is suitable for carriers in the 21 to 30 tonne range. The 1,700 kg hammer with an impact rate of 450 to 750 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 2577E comes with the remote monitoring hardware RD3 installed.
SPECIFICATION
| Minimum working weight, flange mounted *1 | 1760 kg | 3880 lb |
| Weight | 1460 kg | 3220 lb |
| Working length | 2299 mm | 90.5 in |
| Impact rate (frequency) | 450 – 750 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 | 140 – 200 l/min | 37.0 – 52.8 gal/min |
| Back pressure max | 10 bar | 145 psi |
| Input power | 48 kW | 64 hp |
| Tool diameter | 135 mm | 5.31 in |
| Pressure line connection (IN) | SAE 6000 psi 1 1/4″ | |
| Return line connection (OUT) | SAE 6000 psi 1 1/4″ | |
| Pressure line size, min. inner diameter | 26 mm | 1.02 in |
| Return line size, min. inner diameter | 32 mm | 1.26 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, optimum | 23 – 30 t | 50700 – 66100 lb |
| Carrier weight, range *3 | 21 – 32 t | 46300 – 70500 lb |
| Noise level, measured (2000/14/EC) | 120 dB(A) | |
| Noise level, guaranteed (2000/14/EC) | 124 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)
