Scaling is removal of loose material from the tunnel roof and walls to prevent accidents by falling rocks and it is an extremely tough job for the rockbreaker hence only a specialized scaling rockbreaker should be used.
The Rammer 777E Scaler has been manufactured to withstand tough conditions featuring a safe and quick tool change system, connections for grease, air and water and optimized application-specific operating pressure.
Rammer patented design incorporates a floating seal between the tool and the housing ensuring robust yet easily repaired housing.
This 340 kg scaler is suitable for carriers in the 2.6 to 9.5 tonne range.
Features
-
High pressure membrane accumulator
-
Twin handed, smart
-
Tubular accumulator
-
Flange mounting
-
Robust side plate design
-
CBE+ (Constant Blow Energy plus)
-
Optimized operating pressure (Scaler)
-
No tie rods
-
Single part tool bushing retained with shared tool pin
-
Fast-change tool system
-
Robust tool sealing
-
Connection for external lubrication
-
RAMLUBE I (optional)
-
RAMMER Air-Jet
-
Ramair (optional)
-
AGW (optional)
-
RAMMER Water-Jet (dust suppression)
Applications
-
Primary breaking
-
Primary demolition
-
Recycling
-
Telescopic excavator
-
Scaling
-
Remote controlled demolition robot
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, pin mounted *1 | 415 kg |
| Impact rate (frequency) | 500-1700 bpm |
| Operating pressure | 80-130 bar |
| Pressure relief setting *2 | 130-180 bar |
| Pressure relief max | 220 bar |
| Pressure in LP-circuit | 30-32 bar |
| Oil flow range | 40-120 l/min |
| Back pressure max | 20 bar |
| Input power | 26 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 *3 | 19 mm |
| Return line size *3 | 19 mm |
| Grease connection | UNF 11/16-16-external |
| Air connection (A) | UNF 11/16-16-external |
| Water connection | UNF 11/16-16-external |
| Optimum oil temperature | 40-60°C |
| Allowed oil temperature | -20-80°C |
| Optimum oil viscosity at operating temperature | 30-60cSt |
| Allowed viscosity range | 20-1000cSt |
| Miniexcavator, tractor backhoe weight, optimum | 4.9-7.8 t |
| Miniexcavator, tractor backhoe weight, Optium | 4.3-9.5 t |
| Skid steer, robot weight, optimum | 3.3-5.2 t |
| Skid steer, robot weight, range *4 | 2.6-6.3 t |
| Noise level, measured (2000/14/EC) | 120dB(A) |
| Noise level, guaranteed | 124 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.
