TwinWire press ™ Type TWP 40/46

TwinWire™ press
Type TWP 40/46
The unit dewaters pulp by pressing it between two continuous feed endless
wires in a closed dewatering process.
The Paraformer™ headbox distributes the pulp slurry
evenly across the width of the press.
Pulp stock is fed under pressure between top and
bottom wires, supported by high open area static foil
assemblies, and sealed on the sides by tapered deckles.
The static foils are positioned to dewater the pulp
sheet by constant volumetric reduction. The pulp
mat is led under one leadroll and is then pressed in
progressively loaded press nips.
Finally, the wires are driven between the loaded drive
rolls and the pulp sheet exits the press.
Material
Parts exposed to the process media are made of
stainless steel , type SAF 2304 (EN 1.4362) or
equivalent.
Design data
The TWP conforms to the Machinery Directive 98/37/
EC for design and construction of machines and
safety components.
Technical data
TWP 40
TWP 46
15,5 x 11,0 x 6,1 m
12,5 x 7,1 x 5,4 m
115000 kg
110000 kg
Heaviest piece of equipment for lifting (Lower table)
12100 kg
13370 kg
Wire speed, nominal
30 m/min
30 m/min
10–40 m/min
10–40 m/min
Jog speed
4,5 m/min
4,5 m/min
Hydraulic tank volume
230 liters
230 liters
L10h > 90000 h
L10h > 90000 h
<85 dB
<85 dB
Dimensions
Weight
Speed range
Bearing design basic rating life
Maximum noise level
Water supply
© Valmet Corporation, MPDU_R_2075_135-02. 10/2014.
Air supply
For more information, contact your local Valmet office. www.valmet.com
e-mail: mechanical.fiber@valmet.com
Specifications in this document are subject to change without notice.
Product names in this publication are all trademarks of Valmet Corporation.
Hydraulic oil cooler
Cooling water flow
20 l/min (at a water
temperature of 25 °C)
Gear reducers
10 l/min
Tracking system
300 l/min
Tracking system pressure
Min 3.5 bar (g)
Dew point
Max 2 °C
Particle size
3 µm
Particle content
1 mg/m3