Thebendingforceisappliedasthespecimenisforcedagainsttheplunger,eitherasthebaseisraisedwiththetableorasthecrossheadmovesdowndependingontheframebeingused.Theplungerforcesthespecimenintoa180degreebendagainsttherollersonthebase.Ontheweldbendtestfixture,onehalfofthebasecanbeadjustedtooneoffourdifferentpositionstoallowfortestingdifferentthicknessspecimens.Aseparateplungerorstrutisrequiredforeachthicknessspecimen,severalstrutsareavailabledependingonthefixture.Guidedbendfixtureshaveafixedspanbaseandasinglediameterloadingstrutorplungertoformacompleteassembly.Specimenloadingiscarriedthesameaswiththeweldbendfixturethoughaseparateassemblymustbepurchasedforeachspecimen