Semi-automaticspreadersarefixedtothehooksofgantry,bridgeandportalcranes.Twistlockcontroliscarriedoutmechanicallybymeansofwireropepulling.Hooking/unhookingiscarriedoutwithouthelpofcraneworkers.Simplicityandconvenienceofspreaderinstallationallowconvertingfromhookcraneintocontainercraneinashorttime.Thereisnonecessitytoarrangepowersupplyforthespreaderandtoupdatethecranecontrolcircuit.TypeSWLDeadWeight20feet***Containerspreader25-35T1.2-2.6T40feet***Containerspreader32-45T1.2-2.6T)