movable compactors (documents storage rack) is used in library, it is movable, it is half-closed style.
Normally there are six

Detailed Product Description of movable compactors (documents storage rack, filing cabinet)Raw material : steel

Surface treatment : Zinc plated ,Chrome plated or PE  power coating (Any color available).

12 teeth gear, 32 teeth gear, 16 teeth gear, 20 teeth gear for various terminals.

Tension controller:

Industrial wheel castor, diameter, 127mm.

Anti-tilting device; rails are made of 25mm concrete steel.

built-in safety lock:

Close-style front panel to avoid dust or dirt.
Model and size(mm):
W1040*D450*H2350(1-bay,single fixed unit, w/ 6 shelves).
W1040*D450*H2350(1-bay,single movable unit, w/ 6 shelves,lock).
W1040*D600*H2350(1-bay,double movable unit, w/ 12 shelves).

Note: 2-bay, 3-bay, 4-bay, 5-bay, 6-bay, 7-bay, 8-bay are available.