Vacuum Compression Moulding Presses - How it works
Vacuum compression moulding presses are
state-of-the-art, up stroke hydraulic machines. They are used for moulding
rubber, silicone & composites materials. These presses are offered in
various capacities ranging from 50 to 500 tons. In these highly efficient
systems, the compression takes place in a vacuum chamber where there is
closed chamber connected to a pump capable of producing 1 mbar ultimate
vacuum. Effective degassing due to the vacuum created around the mould and
reduced heat loss to the surroundings make these presses most efficient and
effective mode of compression moulding.
Vacuum compression moulding presses substantially enhance the moulding
quality and increase production up to 50%. In these presses, temperature of
the platens is critically controlled with PID type temperature controllers.
The machine heating is started automatically before starting the working
shift, which considerably saves the pre-heating time.
Vacuum compression moulding presses have closed moulding sections with
sliding door. These doors get vacuumed during compression moulding
operation, where its unique design creates vacuum in press chamber
instantly. Vacuum system, hydraulic systems and temperature control systems
all are regulated through PLC or programmable logic controls. Complete
moulding process is automatic and as the moulding is done in the vacuum,
components are moulded without any porosity and with assured quality