... 700 times/min Weight: 70 Made our first rammer since 1983, with mature technology and better materials, our ... rammer will last a long, long time. We have ... , for Longer DurabilityForged 40-Chromium Alloy Piston, Extreme High StrengthForged Alloy Steel Plate, Anti-DeformingAlloy Spring, for ... Size300*280 mmWeight70 kg 70kg Gasoline Engine Tamping Rammer