1. Lifting motors for tower crane Power: 33PC(24kw), 25pc (18kw), 15PC (11KW) 2. Stepping motors for tower crane Power: 1. 7/3. 4, 2. 6/5. 2kw 3. Frequency-converted slewing motors Power :4kw, 5. 5kw, 7. 5kw 4. Slewing motors of tower cranes :55-360N