Versatile and efficient Rammer 355E is your everyday partner for carriers between 1.1 and 3.6 tons.
High-Performance Excellence Line
Small Range 255E Hammer
Strong, Reliable with Less Noise and Vibration
The 255E is your no fuss solution for carriers between 0.9 and 2.5 tons. The 110 kg hammer is protected by box type housing and produces less noise and vibration, whilst is strong enough to take a beating. The Rammer 255E comes with the remote monitoring hardware RD3 installed.
Key Features
Key Applications
Primary demolition, Secondary demolition, Recycling, Trenching, Landscaping, Cutting of asphalt or frozen ground. Ground compacting
CBE+
Constant Blow Energy plus
Single Part Tool
Single part tool bushing retained with shared tool pin
Specifications
| Minimum working weight, flange mounted *1 | 110 kg | 240 lb |
| Weight | 88 kg | 190 lb |
| Working length | 842 mm/33.1 in | |
| Impact rate (frequency) | 600 – 3200 bpm | |
| Operating pressure | 95 – 150 bar | 1380 – 2175 psi |
| Oil flow range | 15 – 35 l/min | 4.0 – 9.2 gal/min |
| Pressure relief setting *2 | 150 – 200 bar | 2175 – 2900 psi |
| Pressure relief max | 220 bar | 3190 psi |
| Back pressure max | 20 bar | 290 psi |
| Input power | 8.8 kW | 12 hp |
| Tool diameter | 40 mm | 1.57 in |
| Pressure line connection (IN) | BSPP-internal 1/2″ | |
| Return line connection (OUT) | BSPP-internal 1/2″ | |
| Pressure line size, min. inner diameter | 12 mm | 0.47 in |
| Return line size, min. inner diameter | 12 mm | 0.47 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 | |
| Skid steer, robot weight, optimum | 0.9 – 1.4 t | 2000 – 3100 lb |
| Skid steer, robot weight, range *3 | 0.8 – 1.7 t | 1800 – 3700 lb |
| Miniexcavator weight, optimum | 1.4 – 2.1 t | 3100 – 4600 lb |
| Miniexcavator weight, range *3 | 1.2 – 2.5 t | 2600 – 5500 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 wear parts *2 Minimum setting = actually measured operating pressure + 50 bar or 725 psi *3 Check carrier allowed attachment weight from carrier manufacturer. Check application requirements. | ||
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