Rammer Medium Range - 2577
Rammer 2577 hydraulic hammers are suitable for carriers in the 23 to 28 tonne range. The 1,700 kg Rammer 2577 Rockbreaker with an impact rate of 450 to 750 blows per minute, features Rammer’s Fixed Blow Energy operating principle that ensures optimum impact energy with every blow, regardless of hydraulic flow fluctuations.
Features
- Membrane type accumulator
- Twin-handed
- Sound supressed
- FBE (Fixed blow energy)
- Lifetime warranty
- Safety valve (Optional)
- Ramlube I (Optional)
- Ramlube II (Optional)
- VIDAT tie rods
- Idle blow protector (Optional)
- Soft blow sensor (Optional)
Applications
- Primary Demolition
- Boulder Breaking
- Trenching
- Secondary Demolition
- Tunneling
Specifications
| Weight | 1460 kg | 3220 lb |
| Working length | 2299 mm | 90.5 in |
| Minimum working weight, flange mounted *1 | 1760 kg | 3880 lb |
| Impact rate (frequency) | 450 - 750 bpm | |
| Operating pressure | 135 - 145 bar | 1960 - 2105 psi |
| Pressure relief min *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 *3 | 26 mm | 1.02 in |
| Return line size *3 | 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 *4 | 23 - 28 t | 50700 - 61700 lb |
| Carrier weight, range *4 | 21 - 30 t | 46300 - 66100 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 Minimun 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. |
||