Continuous Screen Changers (CSC) provide uninterrupted filtration of thermoplastic materials. No downtime or related scrap for screen changes, high reliability, lower average head pressures and higher daily output make this screen changer a perfect choice for continuous melt filtration. The low maintenance design has no mechanical seals and will operate leak-free for decades with proper care.
The polymer melt flow is divided into two streams at the housing inlet and is conveyed through each of the breaker plates and screen packs. Each breaker plate and flow channel is designed to accommodate the full throughput of the extruder or upstream equipment during a screen change. Entrained air is efficiently purged through vents before reintroduction of the screen pack.
For processes requiring increased filter area or desiring minimal pressure variation during a screen change, a four-pocket CSC continuous screen changer is recommended. The four pocket models reduce average pressure drop and in turn yield greater throughput. During momentary screen change, three screens are retained in flow. PLC stepper control minimizes pressure change at screen reentry and holds any change in flow rate during this process to little or none.
| Temperature °F [°C] | Up to 650 [343] |
| Max oper. pressure PSI [bar] | max. 7,500 [500] |
| Control zones (housing) | One (1) or Two (2) |
| Heating | Electric/Fluid |
| Model | Max. Throughput* | Screen Diameter | Filter Area | Heater | Weight | ||||
| Lbs/Hr | Kg/Hr | Inches | mm | Inches² | cm² | kW | lbs | kgs | |
| CSC-058 | 375 | 170 | 2.3 | 58.3 | 2 x 4.1 | 2 x 26.7 | 6.0 | 316 | 143 |
| CSC-076 | 650 | 300 | 3.0 | 76.3 | 2 x 7.1 | 2 x 45.7 | 6.0 | 534 | 242 |
| CSC-096 | 1,000 | 450 | 3.8 | 96.3 | 2 x 11.3 | 2 x 72.8 | 6.0 | 534 | 242 |
| CSC-116 | 1,500 | 675 | 4.6 | 116.3 | 2 x 16.5 | 2 x 106.2 | 9.0 | 775 | 352 |
| CSC-125 | 1,800 | 825 | 4.9 | 125.3 | 2 x 19.1 | 2 x 123.3 | 9.0 | 1,100 | 499 |
| CSC-148 | 2,400 | 1,100 | 5.8 | 148.3 | 2 x 26.8 | 2 x 172.7 | 18.0 | 1,450 | 658 |
| CSC-176 | 3,500 | 1,600 | 6.9 | 176.3 | 2 x 37.8 | 2 x 244.1 | 18.0 | 2,645 | 1,200 |
| CSC-200 | 4,500 | 2,050 | 7.9 | 200.4 | 2 x 48.9 | 2 x 315.4 | 24.0 | 3,855 | 1,749 |
| CSC-230 | 6,000 | 2,700 | 9.1 | 230.3 | 2 x 64.6 | 2 x 416.5 | 36.0 | 4,200 | 1,906 |
| CSC-250 | 7,200 | 3,250 | 9.9 | 250.3 | 2 x 76.3 | 2 x 492.0 | 36.0 | 5,700 | 2,586 |
| CSC-300 | 10,500 | 4,750 | 11.8 | 300.3 | 2 x 109.8 | 2 x 708.3 | 108.0 | 9,200 | 4,174 |
| * Max. throughput rates are estimates and are subject to material, viscosity, pressure, and filtration level. * For 4-Pocket models multiply the estimated throughput by 2.5 - 3. Consult PSI for pressure drop. | |||||||||
* Max. throughput rates are estimates and are subject to material, viscosity, pressure, and filtration level.
* For 4-Pocket models multiply the estimated throughput by 2.5 - 3. Consult PSI for pressure drop.
