Hennecke: High-pressure metering machines for elastomer casting
According to the German company Hennecke GmbH, its Elastoline low-pressure metering machines for elastomer casting have been an established, state-of-the-art product range for decades. However, low-pressure casting has one distinctive disadvantage: the loss of material and solvents due to technical reasons. The new Elastoline HP high-pressure elastomer casting machines are said to make these material losses a thing of the past.
The high-pressure mixhead of the new machine mixes the exact material quantity required for the production run. Material savings through the use of high-pressure technology can add up to a five or six-figure Euro sum per year, depending on the production scenario, said Hennecke. Production using high-pressure technology no longer requires solvents to clean the plant and the mixhead.
Up to now, elastomer casting using high-pressure machines had not been possible. Thanks to decades of experience in developing and manufacturing low and high-pressure metering machines, Hennecke is an expert in high-pressure elastomer casting with high-precision and continuous temperature control. Elastomer casting often requires very high temperatures which must be strictly maintained in the entire metering system, from the tanks and hose lines to the mixhead. Through advances in high-pressure mixing technology, the company has brought the Elastoline HP to the market, with a selection of mixheads that efficiently convert the delivery pressure in the casting of highly viscous media into mixing energy. Another advantage of the new machine is that it enables elastomers to be cast in closed moulds.
As a standard feature, the Elastoline HP is equipped for metering two components plus an optional additional component. Three types of mixheads enable mixture discharges of 10 cm3/s up to 600 cm3/s. The efficient temperature control allows for a component processing temperature of 45 °C to 100 °C. Other versions are also available on request, said the company.
According to Hennecke, at its in-house Techcenter, a three-component Elastoline HP is ready and waiting to give elastomer producers the chance to optimise their existing production processes with the new technology, or to develop entirely new products or production processes.