Two year zero fault maintenance free impact rammer upgrade, dual spring extended top rod with stronger impact force, two-year warranty, 3000W high-power pure copper motor with strong power and no burning machine warranty, two-year quenching gear, within two years of gear breakage, compensation for fine steel quenching rammer head gear, convenient maintenance of detachable rammer head in 2 minutes, quick maintenance of 1.5 times thicker rammer head, detachable rammer head cover in 2 minutes, quick maintenance of new detachable rammer head, reducing dismantling time, easy to replace rammer head gear by hand maintenance, saving maintenance costs, fine steel quenching gear, dual spring extended top rod, fine steel quenching gear, within 5 years of gear breakage, compensation for double spring extended top rod, increased impact force by 60%