The CONSTMACH CVS-1650 inclined vibrating screen is the size-classification machine in a medium-to-large crushing and screening plant. It takes crusher output and separates it into graded aggregate fractions. Understanding its position in the flowsheet, its media options and its maintenance needs helps operators sustain product quality and screen uptime.
Where the CVS-1650 Sits in the Plant
The screen follows a crushing stage and is fed by a 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.
What It Handles and Deck Configurations
- The CVS-1650 handles crushed stone, gravel and sand-sized material at 130-160 t/h.
- Two decks yield three fractions, three decks yield four, and four decks yield five in one pass.
- The 1.600 x 5.000 mm box gives 8 m² of screening area; capacity depends on mesh size, moisture and required cut accuracy.
Deck Media
- Steel woven wire mesh suits hard, abrasive material and finer cuts.
- Polyurethane panels reduce blinding and pegging and offer longer media life.
- 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.
- Check the steel-lined feedbox and discharge lips for wear and replace before failure.
- Verify the support springs and that Huck-bolted joints stay tight under vibration.
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-1650 shares the 1.600 mm width of the CVS-1640 but adds a longer 5.000 mm deck for better efficiency and higher capacity; for still larger duties, the CVS-1850 and CVS-2470 offer wider boxes and more deck area.
Installation and Commissioning
The CVS-1650 is supported on coil springs that isolate vibration from the structure and is installed at a working incline of roughly 15 to 20 degrees. At 14.000 to 15.500 kg depending on deck count, it sits on a steel support tower fed by a conveyor at the top end. The longer 5.000 mm deck means the support tower must accommodate the additional length, and the discharge end must have room for the extended travel of oversize. During commissioning the eccentric drive stroke and rotation are verified, the springs levelled so the box runs square along its full length, and the mesh apertures confirmed against target product sizes before feed is brought on gradually.
Operating Tips for Best Results
- The 5.000 mm deck length gives extra residence time, so it rewards a slightly higher feed depth than a short deck while still classifying cleanly, up to the 130-160 t/h rating.
- Spread feed evenly across the 1.600 mm width to use the full screening area.
- Use the longer deck to your advantage on near-size cuts, where the extra travel improves separation.
- Choose polyurethane panels for damp or blinding-prone material; re-tension steel mesh after running-in.
- Keep discharge lips and chutes clear along the longer deck so fractions do not back up.
