EOT Crane design and costs depends upon Duty Class of cranes.

Crane class duty are chooses based on average load intensities and number of cycles. On the other hand, the classification all hoists by the International Organization for standardization (ISO), European Federation Standard (FEM) and Hoist manufacturer Institute (HMI) is according to more rigorous requirements, which include number of starts and maximum running time per hour. CMAA Crane classification and its comparison with other classification are given below. There are six different classifications of cranes by CMAA based on the duty cycle of crane.

Single Girder Cranes are used for light duty (operation hours up-to 6 hours) having span up-to 22 meters and load capacity up-to 20 MT. While Double Girder Cranes are used in heavy duty(8 hours or above) having load capacity more than 20 MT.

1. Crane Skew and Alignment Issues
2. Damage or Degradation to the Wire Rope
3. Excessive Wear to End Truck Wheels
4. Electrical Problems
   1. Contact Interruptions
   2. Push Button Pendants or Radio Controls problems
   3. Blown Fuses
5. Bent or Damaged Hooks