CVS-1240 | Vibrating Screen

CVS-1240 is the compact model in the CONSTMACH inclined vibrating screen range, designed to separate crushed material into precise size fractions in small to medium crushing and screening plants. With a screen box measuring 1.200 x 4.000 mm and a deck area of 4.8 m², it delivers a rated capacity of 70-95 tons per hour, making it a well-proportioned sizing unit for lower-throughput aggregate lines.

The function of a vibrating screen is multi-deck size separation: material is fed onto the top deck, and as the box vibrates, particles smaller than each mesh opening pass through while oversize travels across the deck to discharge. The CVS-1240 is offered in two, three and four deck configurations, allowing the producer to split feed into three, four or five graded products in a single pass. The two-deck base version is driven by a 7.5 kW motor and weighs 7.400 kg; the three-deck version uses an 11 kW drive at 7.700 kg, and the four-deck version retains the 11 kW drive at 8.000 kg.

The screen is fed from a conveyor downstream of a crusher and produces the saleable aggregate fractions, for example 0-5, 5-12, 12-22 and 22+ mm, depending on the mesh selection. Oversize from the bottom deck is normally returned to a crusher for further reduction, while the through products report to stockpile conveyors. Because gradation accuracy directly affects product value and compliance with specification, the screen is one of the most important quality-determining machines in the plant.

CONSTMACH screens can be produced in driven-from-top or driven-from-center versions, and the eccentric shaft is precision machined and ground from forged steel for reliable, balanced excitation. Bearings are sourced from established brands such as SKF, FAG, Timken and NSK, and the deck support frames are stress-relieved and supplied crowned or flat to suit the application. Huck bolt fastener construction is used throughout to maintain joint integrity under continuous vibration.

Screen media on the CVS-1240 can be steel woven mesh or polyurethane panels, selected according to the hardness and abrasiveness of the material and the required aperture. The bolted and welded, abrasion-resistant steel-lined feedbox and discharge lips protect the high-wear entry and exit points and are replaceable when worn.

The modular structure keeps the unit within standard transport dimensions and makes spare-part replacement and routine maintenance straightforward, which is particularly valuable for the compact plants this model typically serves.

As the smallest screen in the range, the CVS-1240 balances its 4.8 m² of deck area against a modest installed power, 7.5 kW on the two-deck version rising to 11 kW on the three and four-deck versions. This keeps running costs low while still delivering enough vibration energy to stratify the bed and present fines to the mesh across the 1.200 mm width. The 4.000 mm deck length suits the throughput range it serves, giving particles sufficient travel for an accurate cut without the larger footprint of the longer-deck models. Where a producer later needs more capacity, the wider and longer CVS units provide a clear upgrade path from this compact base.

For aggregate producers, quarries and recycling operations running modest-capacity lines, the CVS-1240 provides accurate, repeatable size separation at 70-95 t/h, turning crusher output into clean, specification-graded products with minimal contamination between fractions.