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.
High-Performance Excellence Line
Small Range 555E Hammer
Fast, Powerful, and High-Performance
The Rammer 555E is designed for optimum carrier compatibility and installation flexibility in the 1.9 to 8 tonne range. The 275 kg hammer features a pivoting hose connecting block and a reversible manifold that allows for right or left hand hose connections, in addition to it’s ability to accept a wide range of oil flows and pressures. The 555E is designed to satisfy the specific demands of rental fleet operators. The 555E comes with the remote monitoring hardware RD3 installed.
Key Features
Key Applications
Primary demolition, Secondary demolition, Recycling, Boom mounted applications, Trenching, Landscaping, Cutting of asphalt or frozen ground, Ground Compacting
High pressure membrane accumulator
List Content
Single Part Tool
Single part tool bushing retained with shared tool pin
Specifications
| Minimum working weight, flange mounted *1 | 275 kg | 610 lb |
| Weight | 228 kg | 500 lb |
| Working length | 1261 mm | 49.6 in |
| Impact rate (frequency) | 600 – 1800 bpm | |
| Operating pressure | 90 – 140 bar | 1305 – 2030 psi |
| Oil flow range | 35 – 90 l/min | 9.2 – 23.8 gal/min |
| Pressure relief setting *2 | 140 – 200 bar | 2030 – 2900 psi |
| Pressure relief max | 220 bar | 3190 psi |
| Pressure in LP-circuit | 36 – 38 bar | 520 – 550 psi |
| Back pressure max | 20 bar | 290 psi |
| Input power | 21 kW | 28 hp |
| Tool diameter | 72 mm | 2.83 in |
| Pressure line connection (IN) | BSPP-internal 3/4″ | |
| Return line connection (OUT) | BSPP-internal 3/4″ | |
| Pressure line size, min. inner diameter | 19 mm | 0.75 in |
| Return line size, min. inner diameter | 19 mm | 0.75 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 | 2.4 – 3.9 t | 5300 – 8600 lb |
| Skid steer, robot weight, range *3 | 1.9 – 5.3 t | 4200 – 11700 lb |
| Miniexcavator, tractor backhoe weight, Optium | 3.6 – 5.8 t | 7900 – 12800 lb |
| Miniexcavator, tractor backhoe weight, Range *3 | 3.2 – 8.0 t | 7100 – 17600 lb |
| Noise level, measured (2000/14/EC) | 118 dB(A) | |
| Noise level, guaranteed (2000/14/EC) | 122 dB(A) | |
*1 Includes average mounting bracket and standard wear parts | ||
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