StateMix :: Rotational Unit

Rotational casting system for rolls

At StateMix we also develop turnkey systems for rotational casting of industrial rollers. These rollers are primarily used in the pulp & paper, steel and printing industries and
large conveyer systems.
The size of rollers processed with
our rotational casting machine can
be as large as 6 feet in diameter
and 40 feet in length. Rotational casting process is a system in
which fast curing polyurethane systems, which are especially formulated for room temperature
applications are applied to the
surface of rolls.

In this process, the ribbon flow material is pumped through a metering machine to a traversing
mix head that deposits the mixed material onto a rotating steel shaft. Depending upon the casting
thickness required, one or more
mix head passes might be
required. Once applied, deposited polyurethane will achieve a final
cure at room temperature.
Rotational casting polyurethane applications in comparison with conventional hot mold casting of
large industrial rollers has the following advantages:

           -No mold is required
           -No oven is required
           -Less scrap due to air bubbles
           -Overbuild waste is greatly reduced
           -Less labor
           -Short turn-around time
           -Lower production costs

Not only are the polyurethane mixing machines manufactured at StateMix for rotational casting systems, but also the robotic arms, lathe assembly and all control systems are developed and manufactured in house.

Site Updated by Milorad M