Air Curtain

Installing the Air Curtain will result in
a 10 % –15 % reduction in draw

The Air Curtain (patented) neutralizes the pressure difference between the top and bottom surfaces of the paper sheet after the center roll by creating an air curtain under the sheet.

This relieves sheet tension at the center roll, and allows potential for speed increases.

BENEFITS

RESULTS

• Less draw

• Less breaks

• Less porosity

• Wider sheet

• Better bonding strengt

• Better tensile strengt

UPM Mill PMx – draw reduction 14 % (4.1 % > 3.55 %)
(Machine speed 1,600 m/min, Metso Sym-Press B)

MYLLYKOSKI, Mill PMx – draw reduction over 25 % (2.3 % > 1.7 %)
(Machine speed 1,400 m/min, Metso SymPress B + 4th)

STORA ENSO, Mill PMx – draw reduction up to 20 %
(Machine speed 530 – 1,375 m/min, Voith tri-nip + 4th)

NORSKE SKOG, Mill PMx – draw reduction 13 % (3.80 % > 3.30 %)
(Machine speed 1,450 m/min, Beloit tri-nip)

EMIN LEYDIER, Mill PMx – draw reduction 10 % (2.75 % > 2.48 %)
(Machine speed 1,100 m/min, Voith Duocentri + shoe)

FINE PAPER

LWC

MFC

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