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Moving Vehicles With 2 Post Lifts

Two post above the ground lift was designed in order to elevate trucks and cars to provide an easy accessibility to the wheel assembly as well as the underneath that the automobile is. A two-post over ground lift typically attached to the concrete surface that is already in place. The minimum depth of concrete needed for a two-post above the ground lift should be 4 inches. The use of a thicker concrete is recommended for two-post lifts that exceed 12,000 lbs. capacity.

The lift is comprised of two upright columns and four arms that can be adjusted to an assembly for carriages and two hydraulic cylinders an electric/hydraulic power system, and a range of pulleys and hoses and cables. It is by far the most popular type of two-post above ground lift that is found across the UK. There are also a few European companies that manufacture above-ground lifts using an extruded screw/nut combination that is powered by an electric motor.

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The two-post above-ground lift was created for automobile facilities that could not install lifts in the ground. A lot of automotive service facilities are built on top of rocks (and excavation is not feasible or unattainable) or are located on properties with a large level of groundwater. Two post above ground lifts is the ideal choice for replacing an unusable lift, which will avoid downtime as well as the cleanup and removal mess that comes by an in-ground lift.

The majority of two-post above-ground lifts operate with an electric or hydraulic power unit.

It is made up comprising the following major components:

The electric motor (usually two-phase single phase 220 Volt 60 HZ). The most suitable electric motor will have the highest torque while drawing the least amount of amps. A motor that is high-powered does not offer any advantage over a motor with a lower horsepower that delivers the same amount of torque.

Hydraulic pump that is mounted under the motor unit (with a pre-set valve pressure limit)

Plastic reservoir to hold the hydraulic fluid

Dump valve handle allows the hydraulic fluid to flow into the reservoir via the hydraulic system.

If the button is activated, the hydraulic or electric power unit releases hydraulic fluid that is pressurized (through the hydraulic pipes) into the two cylinders (one is in each of the columns). Pressure of hydraulic fluid can be controlled via the factory pre-set valve for pumping.

The hydraulic fluid is pressurized and is delivered to both hydraulic cylinders by the hydraulic hoses. These hoses run either above the upper part of the hoist (through an overhead beam that is found on the overhead two posts above the ground hoist) or down the ground (covered by the base plate of diamonds located on the base plate 2 posts higher than ground liftings). The hydraulic fluid doesn’t move in the same speed as light. The hydraulic cylinder in the “smart” column (the column that has the power unit connected) will be receiving hydraulic fluid prior to the cylinder that is on the “off” column.

To make sure that both the carriages and the four arms are moving simultaneously, an equalization cable is inserted within the arms between them. The equalization cables are connected in the same way similar to the hydraulic lines. The equalization cables don’t perform the lifting of carriages. Equalization cables are employed to ensure that the arms are all level and that locks within each column are working simultaneously. Yes, the cables exert pressure and exert a “force” over the vehicles, however their primary function is to balance the descent and rise of lift arms (carriages). The pistons that are hydraulically pressurized (encased within two hydraulic cylinders) are the ones responsible to lift the car. Certain manufacturers utilize the hydraulic system to equalize. It is our opinion that using the equalization of aircraft cables system gives the best outcomes and we use it exclusively on all two posts higher than groundlifts.