2 post car lift | What is the difference between floor type double column and gantry type double column?

What is floor type and what is gantry type?
The oil pipe and steel wire rope pass through the ground between the columns and are protected by a steel cover plate. From a distance, it looks like the letter "U", which is the bottom plate type double column. The oil pipe and steel wire rope pass overhead through the columns and are protected by a limited height. From a distance, it looks like the letter "n", which is the gantry type double column.
Balance principle
Whether it is floor type or gantry type, they keep the hoist running synchronously through steel wire rope.
Characteristics and advantages of floor type
The bottom plate type is relatively easy to install because of its simple structure, and the price is much cheaper than the gantry type.
Another advantage of the floor type is that it is not limited by the beam, so there is no limit on the vehicle height. The maximum lifting height depends on the effective stroke of the oil cylinder and the height of the ceiling!
Because the oil pipe and steel wire rope pass through the ground between the two columns, the passing area of the vehicle is blocked, which will make it inconvenient for the evaluation vehicle, tool vehicle and maintenance equipment to move.
When lifting the vehicle, the gravity of the vehicle causes the two vertical columns to bend towards each other, which becomes the torsion of the column and exerts great pressure on the external expansion screw, so the requirements for ground concrete are relatively high.
The knight floor double column is designed for users with low ceiling. The column height is only 2.75 meters. The biggest feature is that it adopts two-stage unilateral unlocking, which is convenient and safe to operate. At the same time, it is equipped with three arms as standard. It's almost impossible to find such a design in the market!
Characteristics and advantages of gantry type
The ground between the columns of the gantry lift is flat, and the passing area of the vehicle is not blocked, so it is convenient for vehicle maintenance.
Because there is a beam on the top, it can offset the torsion of the column, prevent the column from falling inward due to the weak foundation, and it is more stable when lifting.
A limited height switch is equipped under the top beam to prevent the vehicle from touching the beam and causing damage to the vehicle!