INSUNG's ISAD Series is the special purpose machine for machining of Steel Tower Angle. Its combined working system with 2 spindles provides 4 workpieces in work & 4 workpieces in queue simultaneously, i.e. 8 workpieces in total in one working cycle so as to reduce idle time. Hydraulic vice for clamping & jig for turning of workpieces, and hydraulic pusher against bending are supplied along with prevention program against interference.