Rammer Large Range - 3288
The use of advanced hydraulics, materials technology, strength calculations, impact wave theory and production technology has enabled Rammer to create hydraulic hammers that are powerful, durable, cost-effective and the undisputed leaders in their class. Rammer 3288 Rockbreaker has been designed using a revolutionary new operating principle that combines stroke length, blow energy and Rammer’s idle blow protector, allowing the hammer to be adjusted to match individual carriers and applications, improving hydraulic efficiency and safety.
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Specifications
Weight | 2040 kg | 4500 lb |
Working length | 2581 mm | 101.6 in |
Minimum working weight, flange mounted *1 | 2400 kg | 5290 lb |
Impact rate, Long stroke | 370 - 630 bpm | |
Impact rate, Short stroke | 460 - 740 bpm | |
Operating pressure | 150 - 160 bar | 2175 - 2320 psi |
Pressure relief min *2 | 220 bar | 3190 psi |
Pressure relief max | 240 bar | 3480 psi |
Oil flow range | 160 - 250 l/min | 42.3 - 66.0 gal/min |
Back pressure max | 10 bar | 145 psi |
Input power | 67 kW | 90 hp |
Tool diameter | 142 mm | 5.59 in |
Pressure line connection (IN) | SAE 6000 psi 1 1/4" | |
Return line connection (OUT) | SAE 6000 psi 1 1/4" | |
Pressure line size *3 | 32 mm | 1.26 in |
Return line size *3 | 32 mm | 1.26 in |
Grease connection | BSPP-internal 3/8" | |
Air connection (A) | BSPP-internal 3/8" | |
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 | |
Carrier weight, optimum *4 | 28 - 38 t | 61700 - 83800 lb |
Carrier weight, range *4 | 26 - 40 t | 57300 - 88200 lb |
Noise level, measured (2000/14/EC) | 124 dB(A) | |
Noise level, guaranteed (2000/14/EC) | 128 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 allowed attachment weight from carrier manufacturer. Check application requirements. |