TILT LOCK SELF SUPPORTED PATENTED TRACK CRANE SYSTEM ..CAPACITY; 6000 pounds..RUNWAY LENGTH: 23 feet COLUMNS on 20′ CENTERS..OAL HEIGHTS: 13′ 0″..HOOK SUSPENSION POINT 10′ 0″..RUNWAY SUPPORTS: (2) COLUMN SUPPORTS..ELECTRIFICATION: FESTOONED FLAT CA…