Applications and Features UN series of welding machines adopt KD-3B microccomputer series of controller.It can implement preheating, welding, tempering three pulse welding process.All the components and parts are made of brand-name products at home and abroad,therefore,it has the characteristics such strong reliableness,phigh precision and low consumption and long service life. UNw series are are maily applied to the computer set of products for weld of the steel net and the butt welding of the metal materials such as the low-carbon steel,pth stainless steel,paluminum and copper. model parameters: Technical Paratemers Specification RatedCapacityRatedPrimary VoltageRatedFrequencyMaxShot Circuit CurrentLargest step up forceDutyCycleBiggest upset forceWelding area of the largestDimensionsWelding WeightKVAVHzKAN%NMM2L*W*HkgUNW-252538050133552501872113990-670-1110276UNW-6363380502160405030202271110*860*1310416