Friction welding of shafts has the highest strength compared to ARC welding. No filler material is used. Saving processing time and reducing wastages. Different materials can be welded. Mild steel to SS, Copper to Aluminium etc. Widely used in hydraulic cylinder assemblies for earth moving equipment, cranes, borewell drill rods, oil well drill rods, pumps and motor shafts, automobile transmission parts, engine valves and other related parts.