CO series
Hydraulically controlled intermittent flow screenchanger
CO is a hydraulic controlled screenchanger, with discontinuous flow of the filtered melt.
The great advantage of this type of screenchanger is the possibility of replacing the filtering screens with great facility and rapidity, thanks to the screens installed on a sliding plate which is automatically controlled.
Operation
The melted material which needs to be filtered flows through a channel inside the screenchanger. The channel is fitted with a sliding plate on which there are two filtering units, each of which can be provided with a filtering screen.
When the filtering screen in operation needs to be replaced, the control hydraulic unit pushes the plate and brings the dirty filter to the outside in order to make it accessible for cleaning. With this movement the second filter is moved into a working position so that the filtering process can continue.
Only a fraction of second is necessary for these operations. The moving system of the plate is very fast and it allows keeping the efficiency of the equipment at the top levels. The extreme speed of the change allows operating without stopping the extruder activity.
Advantages
CO is QUICK
To move from the filtering screen in use to the clean screen takes only a fraction of second.
- Extraction and replacement of the filtering screens take place very quickly and maintenance can be carried out in a short time
- The speed of the change from one screen to the other means that the action of the extruder is not interrupted
CO is FLEXIBLE
CO can be mounted both horizontally and vertically without affecting performance; in addition CO can be controlled by just one hydraulic unit.
- Mounted both horizontally and vertically, the CO screenchanger can be introduced very successfully onto pre-existing installations or where the space available is restricted, but without compromising high quality processing
- Several CO screenchangers can be controlled by the same hydraulic unit, resulting in large savings and maximum use of space
CO is SAFE
The screenchanger is provided with several devices which guarantee its safe use.
- The safety blocking system of the doors and the hydraulic unit protects from the movements of the plates and from accidental opening during maintenance
- The block of the accumulator prevents the hydraulic unit to exceed the adjusted maximum pressure
- Bushings and Teflon rings or special materials (PEEC, Rulon) chosen according to the requirements of the plant, guarantee a perfect seal during the sliding of the plates
| Technical data | |
|---|---|
| Processing | Hydraulic control with intermittent flow |
| Type of material | Steel |
| Diameters of filtering unit | From 50 to 350 mm |
| Heaters | Vertical, Flat, Circular |
| Material status | From low pollution to recycled |
| Operating temperature | Up to 280° |
| Pressure | Up to 500 bar |
| Hourly capacity | Up to 2000 kg/h |
| Machined material | PE, PP, ABS, PET, PS, etc. |
| Resulting product | Bioriented films, bubble films, casts, sheets, flat head plates, pipes, profiles, Hot Melt |
Special installations
The CO series screenchanger can be installed both horizontally and vertically and can be introduced into pre-existing installations or where the space available is restricted but without compromising high quality processing.
For maximum use of space, and economic advantage, several CO series screenchangers can be connected to one hydraulic unit.
The applications
the CO series is a solution for granulation, re-granulation and regeneration installations as well as processing lines of bioriented films, bubble, films, casts, sheets, flat head plates, pipes, profiles, Hot Melt.
