2023 Rammer® Small Range Hydraulic Rammers 777E
- Year 2023
- Make Rammer®
- Model Small Range Hydraulic Rammers
2023 Rammer® Small Range Hydraulic Rammers 777E
Reliable and versatile Rammer 777E is designed for optimum carrier compatibility in the 2.6 to 9.5 tonne range. The 390 kg hammer has been designed to please the specific demands of rental fleet operators. The 777E features a pivoting hose connecting block and a reversible manifold that allows for right or left hand hose connections, in addition to its ability to accept a wide range of oil flows and pressures. The Rammer 777E comes with the remote monitoring hardware RD3 installed.
Features may include:
High pressure membrane accumulator- 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.
Engine
							Engine Power
							38 hp
						
						Operational
							Operating Conditions
							Impact rate (frequency): 500 - 1700 bpm | Operating pressure: 1305 - 2030 psi | Pressure relief setting: 2030 - 2755 psi | Pressure relief max: 3190 psi | Back pressure max.: 290 psi | Optimum oil viscosity at operating temperature: 30 - 60 cSt | Allowed viscosity range: 20 - 1000 cSt | Pressure in LP-circuit: 520 - 550 psi
						
						
							Operating Temperature, Maximum
							Optimum oil temperature: 104 - 140 °F | Allowed oil temperature range	: -4 - 176 °F
						
						Performance
							Noise Level
							Measured (2000/14/EC): 120 dB(A) | Guaranteed (2000/14/EC): 124 dB(A)
						
						Hydraulics
							Hydraulic Flow
							Oil flow range: 10.6 - 31.7 gal/min
						
						Dimensions
							Dimensions
							Tool diameter: 3.15 in | Pressure line connection (IN): BSPP-internal 3/4" | Return line connection (OUT): BSPP-internal 3/4" | Pressure line size, min. inner diameter: 0.75 in | Return line size, min. inner diameter: 0.75 in
						
						
							Length
							Working: 57.0 in
						
						Weights
							Weight
							710 lb | Minimum working weight, flange mounted: 860 lb | Minimum working weight, pin mounted: 200 lb | Skid steer, robot weight, optimum: 7300 - 11500 lb | Skid steer, robot weight, range: 5700 - 13900 lb | Miniexcavator weight, optimum:10800 - 17200 lb | Miniexcavator weight, range: 9500 - 20900 lb
						
					 
			