Replacement Part List
COMPACTION I CONCRETE I DEMOLITION I UTILITY I CLIMATE
Two-cycle Vibratory Rammer
BS 70-2i
    BS 50-2 
TECHNICAL DATA
Length x width x height  in  26.5 x 13.5 x 37
Shoe size (w x l)*  in  10 x 13
Operating weight  lbs  129
Shipping weight  lbs 140
Shipping size (l x w x h)  in  39 x 15 x 27
Stroke  in  1.71
Percussion rate  blows/min  715
Travel speed  ft/min  25.9
Compacted area  ft
2
/h  1274
Engine type    air-cooled, 2-cycle, 
    single cylinder, gasoline engine WM 80
Displacement  in³ 4.9
Operating speed  rpm 4400
Max. rated power  hp 2.2 
at rated speed  rpm  @ 4400
Power rating specification    80/1269/EEC, ISO 3046-1
Fuel/oil ratio    100:1
Fuel consumption  qt/h  1.1
Fuel tank capacity  qt  3.2
Power train    Power train from engine via centrifugal 
    clutch, gears, crank mechanism, 
    connecting rod, guiding piston, double 
    spring system, spring cylinder onto ramming 
    shoe. Clutch engages when accelerating.
*Ramming shoes available in a range of widths.
This rammer has set the 
standard in the construction 
industry. Powered by the 
exclusive WM 80, this 2-cycle 
engine is specifically designed 
and built for vibratory rammers 
and meets EPA air emission 
standards. Exclusive air filter 
compensation system allows 
for longer run time between 
filter changes.
BS 50-2
COMPACTIONCONCRETEUTILITY DEMOLITIONCLIMATE










