Small Range - Rammer 455
Rammer’s Small range rockbreakers are designed to deliver high blow frequency and power where and when you need it regardless of the application. The 255, 355 and 455 are your no fuss, Plug and play solution for carriers between 1.2 and 5.2 ton. Protected by their box type housing, these hammers produce less noise and vibration, whilst are strong enough to take a beating. Rammer’s plug and play theory makes installation quick and easy, and makes work with multiple carriers a dream.
Features
- Single lower tool bushing
- Membrane type accumulator
- CBE (Constant blow energy)
- No tie rods
- Light weight
Applications
- Primary Demolition
- Secondary Demolition
- Trenching
- Asphalt Cutting
- Ground Compacting
Specifications
| Weight | 190 kg | 420 lb |
| Working length | 1126 mm | 44.3 in |
| Minimum working weight, flange mounted *1 | 230 kg | 510 lb |
| Impact rate (frequency) | 700 - 2600 bpm | |
| Operating pressure | 100 - 170 bar | 1450 - 2465 psi |
| Pressure relief min *2 | 150 - 220 bar | 2175 - 3190 psi |
| Pressure in LP-circuit | 36 - 38 bar | 520 - 550 psi |
| Oil flow range | 40 - 70 l/min | 10.6 - 18.5 gal/min |
| Back pressure max | 20 bar | 290 psi |
| Input power | 19.8 kW | 27 hp |
| Tool diameter | 56 mm | 2.20 in |
| Pressure line connection (IN) | BSPP-internal 3/4" | |
| Return line connection (OUT) | BSPP-internal 3/4" | |
| Pressure line size *3 | 16 mm | 0.63 in |
| Return line size *3 | 16 mm | 0.63 in |
| 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 | |
| Miniexcavator weight, optimum | 2.7 - 5.2 t | 6000 - 11500 lb |
| Miniexcavator weight, range *4 | 2.1 - 3.1 t | 4600 - 6800 lb |
| Skid steer, robot weight, optimum | 1.8 - 3.5 t | 4000 - 7700 lb |
| Skid steer, robot weight, range *4 | 0.6 - 1.3 t | 1300 - 2900 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 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. |
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