Hi Paul,
I don't recommend a cushion lift for anything other than concrete
or asphalt type surface.Cushion lifts are much easier to come by,
and also tend to be less expensive.That said,they are designed for
hard surface use only,and not suited for outdoor areas such as
gravel,crushed stone ect.You would need a Class V-pneumatic machine,for a gravel type surface,and general outdoor usage.
It is true that pneumatic trucks are harder to come by,but that
doesn't mean it's mission impossible either.If you are not sure
what type of truck you have a deal on,send me the serial number
of the machine,and I'll check it out for you.It is true also,that
ground clearance is different on pneumatics,but also keep in
mind,that pneumatics are also longer,and wider than a conventional cushion tire lifts.That again,is another reason they
are primarily used outdoors.Cushions and pnematics can lift
the same capacities,no problem!If the truck you are thinking of
buying is a pnematic with solid tires,that is something that you
can work with,as you can change over to air or foam tires as well.But,if the machine is a cushion,it won't operate safely,or
productively on gravel.Please let me know,if you need any other
info?
Best Regards,
Bill Williams-V.P.
Industrial Truck Solutions