Freight Loading & Classes
ELEVATORS
freight elevator Loading & Classes
Calculations for stresses in the platform members (and doors) of freight elevators are based on the following concentrated loads assumed to occupy the position which will produce the maximum stress:
Class A loading
General freight loading: Load is handled on and off the car platform manually or by means of hand trucks. Single piece of freight not more than 25% of rated load.
Class B loading:
Where the elevator is used solely to carry automobile trucks or passenger automobiles up to the rated capacity of the elevator.
Class C1:
Industrial truck loading: Where the static load during loading and unloading does not exceed the rated load
Class C2:
Industrial truck loading: Where the static load during loading and unloading is permitted to exceed the rated load.
Class C3:
Other loading with heavy concentrations: Where the static load during loading and unloading does not exceed the rated load.
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