... .Gears, which is made of 20 Cr-Mn alloy steel, forged by nitriding, the internal organizational structure mostly optimized, high strength ... parts(Including Oil Tank, Gear Box, Bellows, Oil Pointer, Ram Plate) are exchangeable with Japan Mikasa's Tamper, we sell parts ... ~85mmImpact:1800kgImpact Cycles:500~700T/minTravel Speed:14-18m/minRam Plate Size:340*285mmN.W.72kgG.W.81kgOutput Power:4pPacking Size ...