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Discontinuous Screen Changer Type D-SWE / LD-SWE

Hydraulically actuated Screen Changers for discontinuous operation

 

D-SWE and LD-SWE have different shapes of screen.

.

  D-SWE LD-SWE
Shape of screen
 round elongated
Benefit   significant larger larger filtration area
(attraktive ratio of price to filter area)

 

 

alt

Use

  • where screen changes are rarely needed.

 

 

Applications

  • quality filtration of virgin polymers
  • protection of downstream equipment
  • compounding, semi-finished production, manufacturing of fibres, polymerisation, film extrusion with virgin polymer or reclaim
    (with the LD-SWE)


 

Materials for the Screen Changer D-SWE

  • suitable for almost all polymers
  • special design for PMMA and PC available

 

Materials for the Screen Changer LD-SWE

  • suitable for all polyolefines including the most technical plastics.

 

 

Customized special solutions

  • possibility to extract extruder screw through the screen changer
  • different coating possibilities for the flow channels
  • high pressure design
    (up to 800 bar)
  • inexpensive integration of a diverter boring in the screen bearing piston
  • special die plates

 

 

Function

  • discontinuous melt filter
  • for the screen change, the extruder has to be stopped momentarily (approx. 2-4 min.)
  • very simple handling for the operator
  • the piston is moved out of the housing hydraulically (the screen bearing piston remaining in the housing, blocks the flow channel).Once the new filter medium is inserted, the screen bearing piston is moved back into the operating position


TECHNICAL DATA

Type Screen diameter
[mm]		 Active fitration area
[cm²]		 Output
[kg/h]
D-SWE-030 30.0 7 5 - 30
D-SWE-062 58.3 27 20 - 80
D-SWE-080 76.3 45 60 - 150
D-SWE-100 96.3 72 110 - 260
D-SWE-120 116.3 105 200 - 330
D-SWE-152 148.3 172 300 - 600
D-SWE-180 176.3 244 410 - 820
D-SWE-200 200.0 314 610 - 1300
D-SWE-250 230.3 415 850 - 2800
D-SWE-280 250.0 490 1000 - 3500
D-SWE-300 270.0 575 1600 - 4600
D-SWE-380 340.0 908 2600 - 7000
D-SWE-410 410.0 1320 4000 - 10000
D-SWE-450 450.0 1590 5000 - 15000

 

Type Screen diameter
[mm]		 Active fitration area
[cm²]		 Output
[kg/h]
LD-SWE-180 125.0 x 170.0 179 300 - 600
LD-SWE-290 145.0 x 230.0 288 600 - 1200
LD-SWE-405 175.0 x 270.0 406 800 - 2500
LD-SWE-515 200.0 x 300.0 514 1000 - 3500
LD-SWE-600 230.0 x 310.0 600 1600 - 4600
LD-SWE-730 250.0 x 345.0 734 2000 - 6000
LD-SWE-975 270.0 x 420.0 976 2600 - 8000
LD-SWE-1200 340.0 x 430.0 1213 4000 - 10000
LD-SWE-1600 340.0 x 550.0 1621 5000 - 13000
LD-SWE-2000 410.0 x 580.0 2020 6000 - 15000

The output rates depend on the individual process parameters. Subject to design modifications.
 

 

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