There are two basic types of Pneumatic Lift Tables: Air over hydraulic which are built as a traditional lift table is built except the electric motor is replaced by an air motor. Pneumatic Lift Tables of this type are ideal in applications where electrical components cannot be used in the environment or when electrical power is not available. The other type of air lift table is the air bag design which operate by inflating air bags under the table to cause lift. These types of air lifts are economical ways to cause lift. However, they consume considerable more energy than electric lift tables.