Chains
and Cables are the Problem.
Almost every two-post lift on the market uses chains
or cables and pulleys to synchronize the two columns.
Take a look at the animation on the right. This is how
most two-post lifts work.
The red is hydraulic fluid
- it pumps from the power unit, to the cylinders, and
raises the columns.
So far so good.... Right?
One major problem. See that mess of cables and pulleys
that connect everything? These force the two columns to
stay synchronized and raise evenly.
They're all complicated moving parts.
And all those cables have to go somewhere... usually a
fixed beam above the lift that limits the ceiling height
and width of the installation.
Why are most lifts built this way? Because it's cheap
-- and for most lightweight use under about 12,000 lbs,
it works okay.
What if you want a Heavy-Duty Lift...
...Without the Chain and Cable Problems?
There's another way to synchronize a lift:
Hydraulic Synchronization.
How
It Works
Premium two-post lifts - such as GIROLIFT -
use No Chains, No Cables, and No Pulleys.
All-Hydraulic
Synchronization means fewer moving parts and
lower maintenace than complicated chain and cable
designs.
This
animation shows the simple GIROLIFT design using primary
(red) hydraulic fluid and
secondary (blue) fluid.
As
the Master Cylinder raises, it forces secondary fluid
into the Slave Cylinder. Both arms rise at the same level.
Compare
this design to the chain and pulley lift, and you can
see the advantages. Fewer moving parts mean fewer problems.
Because there are no cables to run, there's also no beam
on top of a Girolift. All of that overhead space is left
open to raise large vehicles higher.
The spacing between the columns can be customized, giving
you more options and more room.
Fewer
moving parts.... fewer installation problems....
That's
the Low-Maintenance Advantage.
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