The CONSTMACH CVS-2470 inclined vibrating screen is the size-classification machine in the largest crushing and screening plants in the range. It takes high crusher output and separates it into graded aggregate fractions. Understanding its position in the flowsheet, its twin-motor drive, its media options and its maintenance needs helps operators sustain product quality at high tonnage.
Where the CVS-2470 Sits in the Plant
The screen follows a crushing stage and is fed by a heavy belt conveyor. Through-products fall to stockpile conveyors while oversize from the lower deck is normally returned to a crusher in a closed circuit. The line sequence is feeder, crusher, conveyor, screen, with the screen setting the final gradation for the whole plant.
What It Handles and Deck Configurations
- The CVS-2470 handles crushed stone, gravel and sand-sized material at 268.8-336 t/h.
- Two decks yield three fractions, three decks yield four, and four decks yield five in one pass.
- The 2.400 x 7.000 mm box gives 16.8 m² of screening area, the largest in the range; capacity depends on mesh size, moisture and required cut accuracy.
Twin-Motor Drive and Deck Media
- The large box uses a twin-motor drive: 2 x 15 kW for two decks, 2 x 18.5 kW for three and 2 x 22 kW for four, for uniform excitation across the full width.
- Steel woven wire mesh suits hard, abrasive material and finer cuts; polyurethane panels reduce blinding and last longer.
- Media is chosen by aperture, open area and feed hardness.
Maintenance
- Inspect and re-tension the screen media regularly to prevent tearing and efficiency loss.
- Lubricate the eccentric shaft bearings on schedule and monitor their temperature.
- Keep the twin motors synchronized so the stroke stays balanced across the box.
- Check the steel-lined feedbox and discharge lips for wear, and verify support springs and Huck-bolted joints.
Comparison With Alternatives
Compared with a static grizzly or trommel, an inclined vibrating screen gives higher accuracy and more decks in a compact footprint. Within the CONSTMACH range the CVS-2470 is the top model, with the largest box and the only twin-motor drive; for lower throughput the CVS-1850, CVS-1650, CVS-1640 and CVS-1240 offer progressively smaller boxes and single-motor drives.
Installation and Commissioning
The CVS-2470 is supported on heavy coil springs that isolate its considerable vibration from the structure and is installed at a working incline of roughly 15 to 20 degrees. At 20.500 to 24.000 kg depending on deck count, it requires a strong, well-engineered steel support tower and a heavy feed conveyor at the top end. The large 2.400 x 7.000 mm box and twin-motor drive demand careful commissioning: both motors must be set to rotate so their forces combine into a balanced linear stroke across the full width, the springs must be levelled so the big box runs square, and the feedbox must distribute material evenly across the 2.400 mm width before high tonnage is brought on.
Operating Tips for Best Results
- Distribute feed across the full 2.400 mm width; with several hundred tons per hour, uneven feed quickly wears one side of the deck and reduces accuracy.
- Keep the twin motors synchronized; an unbalanced stroke degrades screening and stresses the structure.
- Operate within the 268.8-336 t/h band, using the large deck area as a thin even bed rather than a deep one.
- Select polyurethane panels for damp or blinding-prone feed and steel mesh for hard, dry, abrasive material.
- Re-tension mesh after running-in and inspect the large deck regularly for localised wear that signals feed maldistribution.
