CVS-1640 | Vibrating Screen

CVS-1640 is a mid-range model in the CONSTMACH inclined vibrating screen series, built to classify crushed material into accurate size fractions in medium-capacity crushing and screening plants. Its screen box measures 1.600 x 4.000 mm and provides 6.4 m² of deck area, supporting a rated capacity of 100-130 tons per hour. The wider 1.600 mm box, compared with the compact CVS-1240, increases the bed width and therefore the throughput the screen can process at a given accuracy.

A vibrating screen performs multi-deck size separation: feed enters the top deck, and as the box vibrates, undersize passes through each mesh while oversize travels to discharge. The CVS-1640 is offered in two, three and four deck configurations, splitting feed into three, four or five graded products in one pass. The two-deck base version uses an 11 kW drive and weighs 13.500 kg; the three-deck version steps up to 15 kW at 14.000 kg, and the four-deck version retains 15 kW at 14.750 kg.

Positioned after a crusher and fed by a belt conveyor, the CVS-1640 produces the saleable aggregate fractions, for example 0-5, 5-12, 12-22 and 22+ mm, according to the installed mesh. Oversize from the bottom deck is typically recirculated to a crusher in closed circuit, while through-products report to stockpile conveyors. Because gradation accuracy governs product value and specification compliance, the screen is among the most quality-critical machines in the plant.

The CVS-1640 can be produced in driven-from-top or driven-from-center versions. Its eccentric shaft is precision machined and ground from forged steel for balanced, reliable excitation, and bearings are sourced from SKF, FAG, Timken or NSK. The deck support frames are stress-relieved and available crowned or flat, and Huck bolt fastener construction maintains joint integrity under continuous vibration.

Screen media can be steel woven mesh or polyurethane panels, chosen according to material hardness, abrasiveness and the required aperture. The wider deck of the CVS-1640 allows a more even material spread across the mesh, which improves screening efficiency. The bolted and welded, abrasion-resistant steel-lined feedbox and discharge lips protect the high-wear zones and are replaceable, which is important on a mid-range unit that is expected to run long hours in continuous production.

The modular structure keeps the unit within standard transport dimensions and simplifies spare-part changes and routine maintenance, supporting high availability in medium-capacity lines. The same body accepts two, three or four decks, so a producer can specify the number of product fractions without changing the machine envelope or its support tower.

The defining difference between the CVS-1640 and the compact CVS-1240 is deck width: 1.600 mm versus 1.200 mm, at the same 4.000 mm length. That extra width raises the deck area to 6.4 m² and lets the screen carry 100-130 t/h as a shallower, wider bed. A shallower bed is easier to screen, because fines have a shorter path to the mesh, so the wider deck improves both capacity and cut accuracy. Installed power rises accordingly, from 11 kW on the two-deck version to 15 kW on the three and four-deck versions, to stratify the wider bed and keep the mesh open.

For aggregate producers and quarries running medium-throughput plants, the CVS-1640 delivers accurate, repeatable size separation at 100-130 t/h, converting crusher output into clean, specification-graded products while minimising cross-contamination between fractions.