Rammer 522 Hydraulic Hammer

Minimum working weight, pin mounted  *2

245 kg

540 lb

Weight

212 kg

470 lb

Working length

1140 mm

44.88 in

Impact rate (frequency)

400 – 1900 bpm

Operating pressure

110 – 150 bar

1595 – 2175 psi

Pressure relief setting  *3

160 – 200 bar

2320 – 2900 psi

Pressure relief max

220 bar

3190 psi

Pressure in LP-circuit

36 – 38 bar

520 – 550 psi

Oil flow range

20 – 70 l/min

5.3 – 18.5 gal/min

Back pressure max

20 bar

290 psi

Input power

17.5 kW

23 hp

Tool diameter

150 mm

5.91 in

Pressure line connection (IN)

SAE J514 37° (JIC) – 10 MALE

Return line connection (OUT)

SAE J514 37° (JIC) – 10 MALE

Pressure line size, min. inner diameter

16 mm

0.63 in

Return line size, min. inner diameter

16 mm

0.63 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

1.9 – 2.8 t

4200 – 6200 lb

Skid steer, robot weight, range  *4

1.6 – 3.9 t

3500 – 8600 lb

Miniexcavator weight, optimum

2.9 – 4.2 t

6400 – 9300 lb

Miniexcavator weight, range  *4

2.5 – 5.5 t

5500 – 12100 lb

Noise level, measured (2000/14/EC)

133 dB(A)

Noise level, guaranteed (2000/14/EC)

137 dB(A)

*1   Includes average mounting bracket and standard tool
*2   Includes average mounting pins and standard tool
*3   Minimum setting = actually measured operating pressure + 50 bar or 725 psi
*4   Check carrier allowed attachment weight from carrier manufacturer. Check application requirements.