Spot Welding MachineDN2-31X P Frequency(Hz)50/60 Secondaryunloadvoltage(V)6 Max.shortcirclecurrent(KA)16 TypeofweldingarmXtype Distancebetweenthearms(mm)108 228 Max.thicknessofelectrodes(mm)2400 Max.Weldingthickness(mm)4+4 mm Coolingwaterconsume(L/min)5 Compressedairsupply(MPa)0.551.Pneumaticoperatedsuspendedgun. 2.Highproductivityachievedwithrationaldesign,reduceddimensions,highweldingcapacity. 3.Highelectricefficiency. 4.Reducedinstallationcosts. 5.Gyrosuspensiononsealedbearingstogetherwithaspringbalancerguaranteesaccuratemanoeuvrabilityatanydegree. 6.Largeselectionofarms,enablingtoset-upthewelderaccordingtotheworkexigencies. 7.Chrome-copperelectrode-holdersforheavydutyandlonglife,designedforbothstraightandangledassembling. 8.Adjustableelectrodesdistance,adjustableshortworkingstrokeforheavyduty. 9.Temporaryextrastroketoreachtheareastobewelded. 10.Longworkingstroketoweldreinforcementribs,jobsinareasdifficulttobereached. 11.Water-cooledtransformer,withepoxyresincoatedwindings. 12.Water-cooledarms,electrode-holdersandelectrodes. 13.SynchronousSCRcontactorinsulatedfromcoolingwatercircuitwithprotectionthermostat. 14.Aluminiumalloycylinderandchromiumplatedshaftforheavydutyoperationandlonglife.