Rammer 777E Heavy Duty Small
The Rammer 777E Heavy Duty rockbreaker has been manufactured for the toughest of applications in demanding conditions.
Robust heavy duty 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.
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.
Key Specifications
Product Weight
340kg
Product Carrier Weight
1.6 – 9.5 t
Oil Flow Range
40 – 120 l/min
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.
Specifications
Weight | 340 kg |
Working Length | 1449 mm |
Minimum working weight, flange mounted *1 | 415 kg |
Impact rate (frequency) | 500 - 1700 bpm |
Operating pressure | 90 - 140 bar |
Pressure relief setting *2 | 140 - 190 bar |
Pressure relief max | 220 bar |
Pressure in LP-circuit | 36 - 38 bar |
Back pressure max | 20 bar |
Oil flow range | 40 - 120 l/min |
Input power | 28 kW |
Tool diameter | 80 mm |
Pressure line connection (IN) | BSPP-internal 3/4" |
Return line connection (OUT) | BSPP-internal 3/4" |
Pressure line size, min. inner diameter | 19 mm |
Return line size. min. inner diameter | 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 weight optimum | 4.9 - 7.8 t |
Miniexcavator 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) |
- *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.
Specifications are subject to change without notice.