
A solid tyre molding press is a heavy duty machinery, rigid & can
work for around 3 shift per day to produce different kinds of solid
tyres. These tyres have their merits and are still widely in use.
As there are four basic methods of making solid tyres, the machines
or solid tyre molding presses are also of several types. These four tyre
making methods are:
- First method: Sections are built up over a ring, in overlapping
layers. This is finished off with tread rubber and the semi-finished
tyre is then removed from the ring and placed in a mould where it is
cured at high temperature and pressure.
- Second method: In this, the material is continuously extruded on
to a rotating ring and is built up until the pre-determined size is
reached. It is called extrusion The tyre is then cured
in the same manner as above.
- Third method: In the simplest terms, it involves filling a casing
with resilient rubber.
- Fourth Method: This method utilizes the existing rim which is
used in place of the mould. Then, rubber is bonded directly to the
rim, cured and buffed to size. If a tread is required, this is hand
cut into the rubber after curing.
Construction of a solid tyre molding press:
Though these machines are manufactured as per the specifications of the
clients, they essentially operate on the principle of hydraulics. In
general, heavy duty four pillars type hydraulic press is specially
designed for manufacturing solid tyres. The moving bolster, guided in
four pillars and having gun metal/bronze, bushes with centralized
automatic lubrication system.
The press is complete with designed low noise hydraulic power pads with
cartridge valve for smooth change over of valves and PLC and MMI for the
automation of hydraulic press cycle. These presses are available in
various load bearing capacities.