CVS-2050 | Vibrating Screen

The CONSTMACH CVS-2050 is an inclined multi-deck vibrating screen belonging to the company's CVS series of screening machines. It is identified by a deck size of approximately 2,000 x 5,000 mm, giving a layer area of 10 m2 per deck. Within the CVS range it occupies a mid-to-upper position, larger than the CVS-1640 (1,600 x 4,000 mm) and CVS-1850 (1,800 x 5,000 mm) and smaller than the CVS-2470 (2,400 x 7,000 mm). The screen is used to classify crushed aggregate and other granular material into defined size fractions within crushing and screening plants.

The machine works on the inclined vibrating screen principle. The screen box is mounted on springs and inclined at an angle, and an eccentric shaft driven by an electric motor generates a vibratory motion across the decks. This vibration stratifies the feed so that finer particles migrate toward the screen surface while coarser particles rise to the top, and the inclination causes the material to travel along the decks toward the discharge end. Particles smaller than a deck's mesh aperture pass through, while oversize material is conveyed over the end of the deck, so that each deck divides the feed into an undersize and an oversize stream.

The CVS-2050 is rated for a screening capacity of 170-220 t/h. It can be supplied in 2, 3 or 4 deck configurations, with the number of decks determining how many size fractions are produced: a 2-deck screen yields up to three products, a 3-deck screen up to four, and a 4-deck screen up to five, including the final oversize carried off the lowest deck. The installed motor power scales with the configuration, at 15 kW for the 2-deck version, 18.5 kW for the 3-deck version and 22 kW for the 4-deck version, and operating weight ranges from approximately 16,500 kg to 18,200 kg across these arrangements.

The principal application of the CVS-2050 is the classification of crushed stone, gravel and sand in aggregate production. It is positioned downstream of primary, secondary or tertiary crushers in a crushing and screening plant, where it separates the crusher output into commercial size fractions and returns oversize material to the crushing circuit for further size reduction. By producing several graded products in a single pass, it supports the supply of aggregates for concrete, asphalt and general construction use.

The construction of the CVS-2050 is built around a precision-machined forged steel eccentric shaft running in heavy duty bearings, with the bearing selection drawn from established suppliers. The screen box is assembled using Huck bolt fasteners, and abrasion-exposed areas such as the feedbox and discharge lips are steel lined and replaceable. Screen media can be specified as steel mesh or polyurethane according to the hardness of the material being screened, allowing the deck surfaces to be matched to the abrasiveness of the feed.

The screen is designed with a modular structure so that spare parts can be changed and routine maintenance carried out without dismantling the entire machine. Within an aggregate plant the CVS-2050 functions as the sizing stage that links crushing, stockpiling and loading, defining the size ranges of the finished products. As one of the mid-to-upper capacity models in the CVS series, it is selected when the required throughput exceeds that of the smaller CVS-1640 and CVS-1850 units but does not call for the larger deck area of the CVS-2470.