Optimised filtration in a continuous process

The continuous screen changers from Maag are based on a proven double-piston design that operates without any additional seals. This sturdy construction delivers a reliable and leak-free filtration of polymer melts for many years, no matter what the size or configuration of the system.

On the inlet side, rheologically optimised flow channels distribute the melt flow in even quantities into the screen cavities. The breaker plates are fitted with screen mesh material to match the filtration grade required. After the screens, the two cleaned partial melt flows are brought together and exit the filter housing simultaneously.

To change the screen, the pistons are ejected from the housing one after the other using hydraulic cylinders. Once replaced, they are returned to their production position in the same way. During the brief screen change process, the melt flows continuously through the other piston, thereby ensuring the system's constant operation.

Types:

  • CSC - Standard double-piston screen changer
  • CSC-DV - Screen changer with start-up valve
  • CSC-PE - Screen changer with enlarged filter area
  • C-SSC - Single-piston screen changer with continuous operation

Benefits

  • Simple operation and uncomplicated screen changing
  • High operational reliability
  • Short material residence time
  • Leak-free mode of operation
  • Low pressure consumption
  • Flow channel geometry without any dead spots

Application limits

CSC

Temperature [°C]:

up to 330

Operating pressure [bar]:

500

Differential pressure [bar]:

to 100

Screen diameter [mm]:

30 to 400

Filtration area  [cm2]:

14 to 2,512

 

CSC-DV

Temperature [°C]:

up to 350

Operating pressure [bar]:

500

Differential pressure [bar]:

to 100

Screen diameter [mm]:

30 to 400

Filtration area  [cm2]:

14 to 2,512

 

back to top

 

CSC-PE

Temperature [°C]:

up to 350

Operating pressure [bar]:

350

Differential pressure [bar]:

to 100

Screen diameter [mm]:

159 to 560

Filtration area  [cm2]:

266 to 3,312

 

back to top

 

C-SSC

Temperature [°C]:

up to 350

Operating pressure [bar]:

350

Differential pressure [bar]:

to 100

Screen diameter [mm]:

58 to 270

Filtration area  [cm2]:

27 to 572

 

back to top

 

CSC - The standard screen changer
CSC-DV - Continuous operation with integrated start-up assistance
CSC-PE - Continuous operation with enlarged filter area
C-SSC - The single-piston screen changer with continuous operation

Download data sheet

continuous

discontinuous


 

back to top