Via J. F. Kennedy 9, 20023 Cerro Maggiore (MI), Italy

Office hours: 8:30-13:00 : 14:00-17:30, Mon - Fri

+39 0331 93551


Automatic and Continuous

No motor or moving mechanical parts

No pressure drop

During screen changing

Full control

Timer and pressure based

Material sealing

To avoid any leakage

technical data

Processing: Continuous flow, Automatic
Type of material: Steel
Filtering area: Up to 132 cm² (20.5 in²)
Heaters: Armored
Material contamination: Medium, post industrial recycling
Operating temperatures: Up to 300° C (572° F)
Pressure: Up to 400 bar (5.800 psi)
Hourly capacity: Up to 600 kg/h (1.320 pounds)
Polymers: HDPE, LDPE, LLDPE, PP, ABS, PS, Nylon, and more
Products and Applications: Suitable for most of products and applications

Thanks to the entirely new melt channels design and to an innovative and enhanced control panel, its performance and stability are extremely powered. Today, POWERBELT is definitely suitable for processing medium contaminated materials, such as post industrial ones. Screenchanger start-up has been drastically optimized. Today, POWERBELT represents the excellent solution for a wide range of products: blown and cast films, thermoformed products, foamed sections, oriented bands, yarns, wires, pipes and many other products that benefit from a continuous extrusion and extremely stable process conditions. One fact for all: an irrelevant pressure drop during screen replacement. POWERBELT has no motor, gears, hydraulic or pneumatic components, and no moving part except for the screen itself, thus being virtually indestructible. With no need for manual replacement of screen it avoids any operator assistance.

POWERBELT, general features
Once POWERBELT has been started up the screen moves through it advancing in the melt flow towards the exit, retaining the filtered contaminants contained inside the molten polymer. During the extrusion process, the screen advances with no mechanical backing. Screenchanging is produced by the switchover between cooling and heating of the molten polymer.
1. Cooling – Cool water circulates in the entry and exit sections. The molten polymer, if cooled, solidifies and creates a pressure-tight seal capable of standing internal pressure, thus generating a barrier between the melt flow and the air – the polymer is kept in and the air out.
2. Heating – Whenever excessive contaminant accumulate on the screen, its advancement is required. The end part of the solidified plug is heated up and the melt seal softened, ready to be moved onwards by the melt pressure.
3. Screen Advance – The melt seal on the exit section is pushed toward the exit by the melt pressure. The advancing screen is slowly replaced by a new entering screen, which is obviously clean and free from contaminants.
4. Screen Advance Interruption – Whenever the molten polymer is free from contaminants, the screen advance is no longer required and the heating elements on the exit side are switched off. The polymer solidifies, sealing the exit opening and interrupting the screen advance.

POWERBELT Advantages
- Guarantees continuous production, and requires no operator assistance while running
- At screen changing pressure drop is irrelevant
- It has no motor or moving mechanical parts
- It requires no maintenance interventions, except for the screen roll replacement

  • Address
    Via J. F. Kennedy 9
    20023 Cerro Maggiore (MI)
  • Phones
    Phone: +39 0331 93551
    Fax: +39 0331 935591
  • Hours
  • E-Mail
  • Via J. F. Kennedy 9, 20023 Cerro Maggiore (MI), Italy +39 0331 93551

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