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.
Membrane-type accumulator eliminates Nitrogen leakages, ensuring constant maximum impact power and eliminating the need for recharging in field.
A connecting block allows easy adaptation to different excavator setups.
This twin handed design allows optimal mounting on both left and right handed carriers, prolonging the service life of the hose connections.
Easy installation with hydraulic quick hitch mounting brackets.
The leak-free tubular accumulator is filled with nitrogen and requires no maintenance or time-consuming recharging between maintenance intervals.
With its large surface area and short hydraulic connections to the piston, it effectively reduces pressure fluctuations in the hydraulic system and ensures maximum piston acceleration and high impact frequency.
This design provides 100% power at all times.
Less vibrations and at the same time significantly lower noise levels are achieved with this ultra-modern, low-wear design.
This protects the operator, the carrier and relieves the environment.
This extends your range of applications on narrow job sites and wherever noise protection is required.
The Flange mounting design allows for the use of existing mounting plates, as well as carrier and application specific customization.
The RAMMER CBE-System (CBE = Constant Blow Energy) with the active pressure control valve and the permanently filled tubular accumulator maintains the hydraulic pressure level to ensure that each impact delivers the maximum possible power.
The RAMMER CBE system accepts a wide range of oil flows and high back pressures, allowing a wide range of carriers to be used.
The "+" stands for safe and fast connection to the carrier.
A smart design without tie rods allows for ideal guidance of the piston and optimal alignment of the tool.
Fast, safe and easy to maintain without the need for special tools.
The one-piece quick-change tool bushing inludes a thrust ring, the upper and the lower tool bushing into one component.
This quick-change tool bushing can easily be replaced on site, making maintenance easier, faster and safer.
Quick and safe tool change system transverse to the hammer. No need to reach under the hammer during tool change.
RD3 for SAM as standard. Online hour meter and location tracking in Google MapsTM.
For further information, please contact your Rammer distributor.
Demolition of standing buildings and structures.
Trenching is a form of primary breaking in which a narrow trench is excavated especially for laying pipes, cables or for installing drainage
Demolition of larger pieces on the ground (size reduction, separation and preliminary sorting tasks)
The RAMMER "Spade tool" was specially developed for cutting of asphalt or frozen ground in road construction or infrastructure.
Gardening, graveyard and landscaping applications, hard ground and removal of smaller boulders, concrete fundaments or similar.
With special compacting plate tool.
Rental includes most applications
| 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 *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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Specifications are subject to change without notice (Wednesday, August 23, 2023)
