777E Heavy Duty Small
777E Heavy Duty Small
Heavy-duty Rammer 777E has been made for demanding conditions. The 415 kg hammer is suitable for carriers in the 2.6 to 9.5 tonne range. Robust housing withstand wear and no-tie-rods enables fast and easy servicing. Twin handed design allows optimal mounting on both left and right-handed carriers, prolonging the service life of the hose connections. The Rammer 777E Heavy Duty Small hydraulic hammer comes with remote monitoring device RD3 installed.777E Heavy Duty Small Range
Features
- High pressure membrane accumulator
- Twin handed, smart
- Tubular accumulator
- Flange mounting
- Heavy duty housing
- CBE+ (Constant Blow Energy plus)
- No tie rods
- Single part tool bushing retained with shared tool pin
- Fast-change tool system
- RD3 incl. MyFleet (as standard)
Applications
- Primary demolition
- Secondary demolition
- Recycling
- Boom mounted applications
- Trenching
- Landscaping
- Cutting of asphalt or frozen ground
- Ground compacting
- Metallurgical industry
Specification
| Minimum working weight, flange mounted *1 | 415 kg | 915 lb |
| Weight | 340 kg | 750 lb |
| Working length | 1449 mm | 57.0 in |
| Impact rate (frequency) | 500 – 1700 bpm | |
| Operating pressure | 90 – 140 bar | 1305 – 2030 psi |
| Oil flow range | 40 – 120 l/min | 10.6 – 31.7 gal/min |
| Pressure relief setting *2 | 140 – 190 bar | 2030 – 2755 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 | 28 kW | 38 hp |
| Tool diameter | 80 mm | 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 | 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 | 3.3 – 5.2 t | 7300 – 11500 lb |
| Skid steer, robot weight, range *3 | 2.6 – 6.3 t | 5700 – 13900 lb |
| Miniexcavator, tractor backhoe weight, Optium | 4.9 – 7.8 t | 10800 – 17200 lb |
| Miniexcavator, tractor backhoe weight, Range *3 | 4.3 – 9.5 t | 9500 – 20900 lb |
| Noise level, measured (2000/14/EC) | 130 dB(A) | |
| Noise level, guaranteed (2000/14/EC) | 134 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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