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4300Catalog Equipment Benders Mandrels(PlugType) ForusewithExactolModels412,424andtheHB632benders. Mandrelsensuresmoothbendswithoutkinking,orwrinkling whenbendingthin-walledtube,orwhenmakingshort-radius bends.Mandrelssupportthetubewallfromtheinsidetokeep itfullyopenforasmoothbend. Arulethatisgenerallyfollowedtodeterminewhetherornot amandrelisnecessaryisasfollows:Whenthewallthickness ofthetubetobebentis7percentormoreofthetubeO.D., amandrelisusuallynotnecessary.Onwallthicknessesthat rangebetween4-6percentofthetubeO.D.,itisnecessary Fig.S34--Mandrel touseamandreltoavoidwrinklingandflatteninginthebend area.Thisruleisbasedonabendradiiofbetweenthreeand fourtimesthetubeO.D. *SeeFig.S33formandrelusage. PartNumberExample: 924417-SizeXWallThickness= Toordermandrel,specifytubeO.D.andwallthickness. 924417-12X058 END WallThickness SIZE Size (in.) (in.) (in.) (in.) (in.) (in.) 6 3/8 -- 0.035 0.042 -- -- 8 1/2 -- 0.035 0.042 0.049 -- 10 5/8 0.035 0.042 0.049 -- -- 12 3/4 0.035 0.042 0.049 0.058 0.065 14 7/8 0.035 -- 0.049 0.058 0.065 16 1 0.035 0.042 0.049 0.058 0.065 18 11/8 -- 0.042 0.049 -- 0.065 20 11/4 -- 0.049 -- 0.065 0.095 24 11/2 0.049 0.058 0.065 0.083 -- TableS4--MandrelSizes MandrelRods ForusewiththeHB632ModelBenderandExactolModels 412/424benders.Mandrelrods(aswellasamandrelrodstop assembly)arerequiredwhenusingmandrels.Mandrelrod Fig.S35--MandrelRods diametersaredeterminedbytubeI.D. MandrelRodSizes Mandrel RodDia. TubeI.D. (in.) (in.) PartNo. 1/4 .283to.362...................................................... 520506 5/16 .363to.484...................................................... 520507 13/32 .485to1.489..................................................... 520508 5/8 1.49to1.87.................................................... 520509 Dimensionsandpressuresforreferenceonly,subjecttochange. S17 ParkerHannifinCorporation TubeFittingsDivision Columbus,Ohio http://www.parker.com/tfd
Goodyear Rubber Products
