Fine Material Screen

The fine material screen is a linear vibrating screen with two counter-rotating vibromotors, used specifically to screen fine material down to 600 microns. Capacity is 5-10 tph and the screen has 5 decks. Manufacture is CE-marked and ISO 9001; the unit takes up little space for its capacity.

Separation at micron level

The two counter-rotating vibromotors run so that the horizontal force components cancel while the vertical components sum. The result is a straight-line (linear) trajectory on the deck:

• High frequency and a short stroke suit fine screening; the linear motion drives the fine grain forward.
• The blinding and static-adhesion risk, high in the fine range, is reduced by the high-frequency linear motion.
• Five decks produce several fine fractions at once.

Technical figures

Certificates: CE + ISO 9001. 600 µm corresponds to about 30 mesh. Apertures and media type are set to order for each project.

Industrial use

The fine material screen is used in fine sand, micronised/powder classification and fine-fraction production for the chemical and building-materials industries. It also serves as a complementary unit for separating fine sand in a sand-recovery line, suited to classifying the fine sand from a fine material screw washer discharge.

Process line

As the final quality stage of production, the fine material screen runs on the same line as dewatering and washing equipment. General Makina designs the 600-micron cut together with spiral/bucket washers and a dewatering screen; production under CE and ISO 9001 delivers fine-fraction recovery under one responsibility.