Sandvik
Modular PU Screening Media
Patented
Design
A modular screening media of polyurethane with moulded openings
primarily for fine to medium coarse screening in wet applications.
Fit most screens,
safe and easy installation
Sandvik PU modules allow for many
deck configurations. Using an adapter,
the system can be easily mounted on
some competitors assembly profiles.
The screen module is nominally
600 mm x 300 mm and therefore fits
most screens. The modular system
gives great flexibility. Individual panels can be easily replaced for reasons
of wear or in order to change hole
size. A double snap-on locks the
modules on extruded steel profiles.
The screen modules are designed
to protect the profiles against wear.
An adapter system has been developed
making it possible to install cross-tensioned media on screens, equipped
with our snap-on profile.
Combinations of modules and crosstensioned media are also possible.
Many deck configurations
The screen deck can be either flat,
stepped, or with a high-low design.
A flat deck enables the material to be
distributed evenly over the full width
of the screen, increasing efficiency.
Steps allow the smaller particles to
come into contact with the screen
surface more rapidly. The high-low
design causes the material closest to
the screen surface to zigzag over the
screen. This slows the material down,
resulting in improved screening
efficiency.
Long life and minimal
maintenance requirements
The PU modules are made of Dual
hardness with a rigid lattice at the
base for strength and with a soft,
flexible screen membrane at the top
for reduced blinding and pegging.
This design gives a long life and low
weight, therefore reducing the load on
the screen. The self-supporting design
gives narrower blank areas between
the panels, allowing greater open
areas, which result, in higher capacity
and less risk of material migrating.
The polyurethane modules do not
contain any metal reinforcement,
making disposal of worn-out products
easier
More accurate screening
The risk of material migrating is
reduced through the trapezoidal shape
of the panel, giving a staggered hole
pattern and joints between the panels
that do not run parallel with the
screen side plates. The side protection
is wedge shaped to allow for minor
adjustment in width, and also to
prevent material migrating along the
sides of the screen. The result is more
accurate screening and less misplaced
particles in the end product.
Reduced noise level and improved
working environment
By using polyurethane modules in the
screen, the noise level in the plant is
reduced, improving the working environment. Low weight and manageable
size makes the Sandvik PU modules
easy and safe to handle and ship.
Snap-on attachment
for flat deck
configuration
Snap-on attachment
for hi-low and stepped deck
configuration
High-Low deck configuration
modules and side liner spacers are available.
If the feed drop height exceeds 1 m, either an
impact pad or a thicker screen panel should be
used at the point of impact.
Type
Modular polyurethane screening media.
Dimensions
Thicknesses: Hole size dependent.
Length: 600 mm.
Width: 320 / 265 mm.
Applications
Sandvik modular polyurethane screening
media is used primarily for wet screening in
intermediate and final stages, generally with
separations between 1 - 31.5 mm and a max
feed lump size between 10 - 100 mm.
Materials
Installation
On extruded steel profiles mounted crosswise
in the screen.
Stepped deck configuration using high-low
snap-on profiles, flat deck configuration using
low-low snap-on profile or high-low deck
configuration using high-low snap-on profiles
and thick and thin modules.
On screens with a width dividable by 300 mm
and a length dividable by 600 mm only full
modules are needed. For all others narrow
Wearing material: Polyurethane.
Reinforcement: Dual hardness self supporting
modules.
Tensioning device: Snap-on attachment.
Apertures
Moulded holes.
FR - Square holes 3.5 - 40 mm in line (rows
staggered): Used under normal conditions.
STS - Slots from 0.5 - 3 mm across the
material flow: Used for wet screening and in
dewatering screens.
Recommended area of use
Separation (mm)
Dewatering
1-2
4-6
8
10 - 12.5
16
19 - 25.4
31.5
37.5
45
63
70 - 90
105
120
10
*
*
*
*
-
20
-
*
*
*
*
*
-
30
-
*
*
*
*
*
-
50
-
*
*
*
*
*
-
75
-
*
*
*
*
-
= Recommended area of use
= Improbable application
= Borderline case
= Not recommended
100
-
125
-
*
*
*
*
-
-
150
-
200
-
250
-
300
-
* Stepdeck PU thickness is hole size dependent
** Bulk density max. 1.8 metric ton/m3
If your application falls outside the limits specified above, please contact your Sandvik Mining & Construction representative.
S A N D V I K M I N I N G A N D C O N S T R U C T I O N A B. T E L. +4 6 4 0 4 0 6 8 0 0. F A X +4 6 4 0 4 0 6 8 9 8.
www.sandvik.com
B943.003 EN © Sandvik SRP AB 2007. Subject to alteration without prior notice.
Max particle size (mm)**