rammer

777

Rammer has always been at the forefront of hammer development, and the 777 scaler is just a part of the next phase in hammer development for special applications, such as scaling.

Scaling is an extremely tough job for the hammer, and only a specialized scaling hammer should be used.

Features

  • Single lower tool bushing
  • Membrane type accumulator
  • Twin-handed
  • Sound supressed
  • No tie rods
  • CBE+ (Constant blow energy plus)

Applications

  • Scaling

Specifications

Weight 315 kg 690 lb
Working length 1449 mm 57.0 in
Minimum working weight, flange mounted  *1 385 kg 850 lb
Impact rate (frequency) 500 - 1700 bpm
Operating pressure 80 - 130 bar 1160 - 1885 psi
Pressure relief min  *2 130 - 180 bar 1885 - 2610 psi
Pressure relief max 220 bar 3190 psi
Pressure in LP-circuit 30 - 32 bar 435 - 465 psi
Oil flow range 40 - 120 l/min 10.6 - 31.7 gal/min
Back pressure max 20 bar 290 psi
Input power 26 kW 35 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  *3 19 mm 0.75 in
Return line size  *3 19 mm 0.75 in
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 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
Miniexcavator, tractor backhoe weight, Optium 4.9 - 7.8 t 10800 - 17200 lb
Miniexcavator, tractor backhoe weight, Range  *4 4.3 - 9.5 t 9500 - 20900 lb
Skid steer, robot weight, optimum 3.3 - 5.2 t 7300 - 11500 lb
Skid steer, robot weight, range  *5 2.6 - 6.3 t 5700 - 13900 lb
Noise level, measured (2000/14/EC) 120 dB(A)
Noise level, guaranteed (2000/14/EC) 124 dB(A)
*1   Includes average mounting bracket and standard tool
*2   Minimun setting = actual operating pressure + 50 bar or 725 psi
*3   minimum inner diameter
*4   Check carrier's lifting capacity from carrier manufacturer
*5   Check carrier allowed attachment weight from carrier manufacturer. Check application requirements.

 

More Information

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