Rammer 777E features robust heavy duty housing that withstands 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.
This 340kg Heavy Duty Small Hydraulic Rockbreaker is suitable for carriers in the 2.6 to 9.5 tonne range and it comes with remote monitoring device RD3 installed.
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
- Boom mounted applications
- Landscaping
- Secondary Demolition
- Trenching
- Recycling
- Asphalt Cutting
- Ground Compacting
- Metallurgical industry
Compatible with Standard Chisel Tool, Long Chisel Tool, Moil Point Tool, Long Moil Point Tool, Pyramid Tool, Spade Tool (parallel to boom), Spade Tool (Transverse to boom), Compacting Plate Tool.
| Weight | 340 kg |
| Working Length | 1449 mm |
| Minimum working weight, flange mounted *1 | 415 kg |
| Impact rate (frequency) | 500-1700 bpm |
| Operating pressure | 90-40 bar |
| Pressure relief min *2 | 140-190 bar |
| Pressure relief max | 220 bar |
| Pressure in LP-circuit | 36-38 bar |
| Oil flow range | 40-120 l/min |
| Back pressure max | 20 bar |
| Input power | 28 KW |
| Tool diameter | 80 mm |
| Pressure line connection (IN) | BSPP-internal 3/4 in |
| Return line connection (OUT) | BSPP-internal 3/4 in |
| Pressure line size | 19 mm |
| Return line size | 19 mm |
| Optimum oil temperature | 40-60°C |
| Allowed oil temperature range | -20-80°C |
| Optimum oil viscosity at operating temperature | 30-60 cSt |
| Allowed viscosity range | 20-1000 cSt |
| Miniexcavator, tractor backhoe weight, optimum | 4.9-7.8 t |
| Miniexcavator, tractor backhoe weight, range *3 | 4.3-9.5 t |
| Skid steer, robot weight, optimum | 3.3-5.2 t |
| Skid steer, robot weight, range *3 | 2.6-6.3 t |
| Noise level, measured (2000/14/EC) | 130 dB(A) |
| Noise level, guaranteed (2000/14/EC) | 134 dB(A) |
