Screening on a higher level

Dieffenbacher's new high-capacity oscillating screen system for particle board production.

Building on its long experience with oscillating screens for particle board production, Dieffenbacher has developed the new HCOS (high-capacity oscillating screen) for more throughput and with less investment.

The new screen was on display at Ligna 2019. The HCOS is developed specifically for producing high volumes. It is available in three sizes with the largest version enabling throughput of 260 cubic metres per hour.

HCOS can be equipped with the new mechanical inclination change (MIC) feature. By adjusting the screen’s inclination from 8° to 6° or 10°, material flow can be decreased or increased. This makes capacities of up to 325 cubic metres per hour possible.

With lightweight frames made of edged laser-cut profiles and enclosure panels and doors made of light sandwich panels with high stiffness, the HCOS weighs just 60% of comparable screens. The lightweight construction ensures a long frame life and enables hanging installation of the screen, eliminating the need for dedicated foundation blocks.

Meeting Atex safety standards, the HCOS is ready for indoor installation. All new HCOS feature integrated flameless explosion relief (IFER). In the event of a particle explosion in one of the four screen decks, the IFER ensures flameless pressure relief. All neighboring decks are perfectly protected from explosion hazard.

The HCOS is configured for four or five fractions. The screen nets for the different fractions are self-cleaning and quickly changeable for minimum maintenance.

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