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The MAP is a dehumidification system for moulding tools which are chilled below the dew point of ambient air using cold water.
The MAP is a dehumidification system for moulding tools which are chilled below the dew point of ambient air using cold water.
Photo: 12

At Fakuma 2018, the FarragTech GmbH will be presenting the Mould Area Protector (MAP) XS during a live application for the first time. As of 2019, this is equipped as standard with a revised version of the previous microprocessor control - the FIT Controller. It has numerous connectivity options which allow mobile access to the system.

In order to reduce the required cycle time, manufacturers of plastic mouldings usually start with cooling time, because it normally takes one third of the time. If, however, the chilled water temperature is simply reduced for this purpose, product quality will decrease due to increased condensation on the mould surface.

One possibility of preventing formation of condensation water with water temperatures of 6°C is the MAP. Due to enshrouding the mould cabins and their supply with dehumidified air, productivity can be significantly increased. The Austrian company has extended its portfolio by the size XS for smaller cabins.

The principle is: the MAP supplies the mould cabin, which is enshrouded from the environment for this purpose, with dehumidified air. For this, the air flows through four stations beforehand in order to achieve the desired condition.

At first, ambient air is sucked through a filter. Then it is passed on into a water-cooled heat exchanger and, in a third step, chilled down to 3°C via the heat exchanger of the integrated refrigeration system. As the cold air separates the liquid, the water can be collected in a trough. Afterwards, the air in the condenser is heated up to 25°C so that it can again absorb moisture and blown into the enshrouding.

Compared to air conditioning of complete plants, the MAP is thus the alternative saving more operating costs.

“As the cabins normally have different dimensions, the MAP is available in different sizes from S to XL,” said Aaron Farrag, Managing Director of the FarragTech GmbH. “For particularly small mould cabins, we have now additionally extended our portfolio by the size XS.”

By means of this model, also small enshroudings can now be supplied with dry air. In contrast to larger devices, both the operating costs for chilled water and power and investment costs become considerably lower.

The new version of the FIT Controller will be integrated in a CARD device. The controller serves to control, monitor and link the MAP. All parameters which are required for these tasks will be set by FarragTech during commissioning. In addition, the device can be accessed regardless of where the user is located.

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