CF

Continuous
Melt Filter

CF Continuous Melt Filter

Continuous Filtration, Continuous Production Technology

Developed for high-capacity plastic recycling and extrusion lines, the CF – Continuous Melt Filter is a continuously operating melt filtration system that allows filter replacement without stopping production.

Thanks to its large filtration area and dual filter chamber, the system significantly reduces the frequency of filter changes while maintaining a constant melt flow and stable process conditions throughout production.

The system has two independently operating filter zones. While one filter is being cleaned or its screen is being replaced, the other continues production without interruption. This allows the filtration process to continue without stopping the extrusion line.

Technical Data

SF Standard Filter Models

Feature	Value
Filter Area	2 Independent Filter Areas
Operating System	Continuous Filtration
Filter Screen Diameter	Ø150 mm / Ø200 mm / Ø250 mm / Ø330 mm
Drive System	Hydraulic
Filter Change	During production, without stopping the line
Filtration Surface	Large filtration area
Pressure Control	Continuous monitoring with pressure sensor
Filter Change Warning	Automatic pressure alarm
Control System	Compatible with PLC and HMI integration
Melt Flow	Continuous and balanced flow
Processable Materials	LDPE, LLDPE, HDPE, PP, PET, ABS, PS, EPS, PA, PC and other thermoplastics

Operating Principle

The polymer melt is directed to two independent filter zones within the system and subjected to continuous filtration.

Both filters operate alternately, ensuring an uninterrupted melt flow throughout production.

As contaminants accumulate on the filter screen, the system pressure increases. When the pressure reaches the preset filter-change level, the operator is alerted.

The operator activates the hydraulic system via the joystick or control panel and moves the filter carrier outward.

The contaminated filter screen is cleaned or replaced with a new filter screen.

As the filter carrier is moved back into position, the system first fills the filter chamber with melt to prevent the formation of air pockets. This prevents air from entering the system and allows the filter to be brought back into operation without pressure fluctuations.

After the first filter returns to its normal operating position, the same procedure is carried out for the second filter.

Thanks to this alternating operating principle, continuous filtration is achieved without stopping production.

Our Advantages

Continuous Production

Production is not stopped during filter changes. The line continues operating continuously.

Stable Melt Pressure

Minimizes pressure fluctuations during filter changes and ensures process stability.

Ideal for High-Capacity Lines

Provides maximum efficiency in high-capacity recycling and extrusion lines of 700 kg/h and above.

Fast Filter Change

Thanks to the hydraulic system, filter changes are carried out quickly and safely.

Very Low Melt Loss

Polymer loss during filter changes is kept to a minimum.

Easy Maintenance

Thanks to its simple mechanical design, maintenance time and operating costs are low.

Protective Body Design

The sheet-metal protective enclosure improves operator safety and protects hydraulic equipment from external factors.