Saint-Gobain Performance Plastics developed its belting
materials for applications that require superior release
characteristics, permeability for rapid drying, dimensional and
thermal stability, and the dynamic strength to stand up to the
most rigorous operating conditions. The unique behavior of the
materials results in a product that is more practical and
cost-effective than conventional belting materials.
Release PropertiesThe release
characteristics of PTFE are superior to those of any other high
temperature material. This non-stick property is retained over
a full range of operating temperatures.
PermeabilityOur belting combines a maximum
amount of open area with good mechanical strength. The result
is a very high level of controlled air flow through the belt,
maximizing the rate of drying.
Dimensional StabilityThe woven
reinforcement results in an elongation of approximately 1%
under normal mechanical loading, even at temperatures of
550°F. Length distortion is exceptionally low, while
width rigidity and stability are enhanced by the high-modulus
of the reinforcement.
Thermal StabilityChemfab® brand
belting may be used continuously at temperatures up to
550°F without reducing its performance.
Dynamic StrengthOur belting has been
subjected to static and dynamic tests which indicate that it
can withstand all normal operating conditions affecting service
life.
Chemical ResistancePTFE surfaces are
unaffected by most chemicals and solvents.
SEAM DESCRIPTIONSSaint-Gobain Performance
Plastics, in cooperation with Andrew Roberts, provides a
broad range of seam options suited to the performance
specifications of each belting system.
FOLD BACK LOOP SEAMThe carcass of our open weave
belting material is folded backonto itself at each end and
stitched into place. From the apex of each fold, one or
more fill (cross-wise) threads are removed to create a
series of loops. The looped ends are then meshed together
and a joining pin is led through to complete the seam.
This method is a direct and reliable means of creating a
seam from the same material as the belt itself.
HINGE SEAM
Separate sections of material are folded over each of
the belt ends, then heat sealed and/or stitched in place. A series
of castellated or crenel notches cut into the apex of
each fold form a pattern of
square or “toothed†loops
at the belt ends. The ends are then meshed and joined by
a pin fed through the matched pattern of loops. This seam
is produced with TCK (KEVLAR, a superior strength fabric,
coated with PTFE).
TCK 90 SEAM
Using our weaving technology,
the TCK 90 seam incorporates
braided KEVLAR yarns woven into an open weave. This
extremely strong seam is then stitched to the belt
carcass, resulting in an open weave seam that does not
block airflow. This seam is ideal for drying
applications.
CABLE SEAMHigh-temperature webbed synthetic fabric
assures high strength performance of the cable seam.
Alternately woven one side open and one side closed every
1/8", sections of synthetic
material are folded over the belt ends and stitched in
place, creating a series of loops parallel to the width
of the belt. These belt ends are then meshed and joined
by a wire fed through to complete the seam. This seam is
produced with high strength, high-temperature synthetic
fibers.
PIN
SEAM
This seam incorporates reweaving to
provide the convenience of a mechanical joining technique combined with
the benefits of an endless belt. Fill (cross-wise)
threads are removed at each belt end to free warp
(lengthwise) threads. The warp threads are then folded
back and rewoven into the belt carcass to form loops. The
two ends are then meshed together and joined by a pin
passed through the loops. Joining pins are available in
stainless steel or non-metallic materials.
FLAP OVER SEAM
A PTFE-coated, synthetic fabric
flap over the seam area can be heat sealed and/or stitched to a belt. This
will ensure a continuous release surface which will
inhibit mark-off from seam contamination and protect the
seams from abrasion. A flap over seam is generally used
with a metal seam and is available with all Saint-Gobain
Performance Plastics belting styles.
ALLIGATOR OR CLIPPER LACED
SEAMIn this extremely strong and flexible mechanical
seam, Alligator or Clipper
type metal lacing is locked into reinforced belt ends. The
laced ends are then meshed and joined by a pin. Available
in stainless steel, steel or Monel.
ENDLESS WOVEN SEAM
Fill (crosswise) threads are removed at each belt end
to free warp (lengthwise) threads. The belt ends are then joined by
reweaving the warp threads into the belt carcass of the
opposite belt end. This technique produces a truly
endless belt with excellent tracking characteristics,
uniformity and greater overall flexibility than belts
with conventional seams.
EDGE REINFORCEMENT
Belt edge reinforcement provides additional support
for pin guides, grommets and eyelets, protects belt edges
from wear and unraveling and presents a uniform edge for
automatic tracking sensors. We offer the following edge
reinforcements with all belting styles and recommend them
for use with porous or screen dryers materials such as
TCK 1590, TCN 1590, TCK 1589, CHEMFAB 1590 and CHEMFAB
1589.
FINGER SPLICE This unique splice uses
“fingers†from the belt
carcass that are locked together through heat sealing. A
finger splice used on a solid belt produces a very
smooth, continuous release surface.
3 Mil PTFE Film:
Heat sealed to the belt edge, this reinforcement is
available in widths from 1" to 1-1/2".
5 Mil/10 Mil Fabric:
Reinforcing strips of 5 or 10 mil woven glass fabric
coated with PTFE are heat
sealed and/or stitched to the belt edge. Available in
widths from
1/2" to 2".
TCKâ„¢
Typical
Applications:
● TCK-PTFE coated Kevlar
● High-temperature aramid fiber
offers a belting material with an extremely high
strength-to-weight ratio
● Kevlar is an excellent fabric for
use in high moisture environments
Product Style
Number
Fiber Length
(warp)
Content Width
(fill)
Coating
Weight
(oz/sq.yd)
Thickness
Open Area
(%)
Edge
Reinforcement
17
KEVLAR®
KEVLAR
PTFE
20.0
.017
0
Not Required
800
KEVLAR
KEVLAR
PTFE
12.0
.034
50
3 mil Skived PTFE
1000
KEVLAR
GLASS
PTFE
18.9
.050
80
3 mil Skived PTFE
1589
KEVLAR
KEVLAR
PTFE
6.2
.018
50
3 mil Skived PTFE
1590
KEVLAR
KEVLAR
PTFE
6.3
.025
50
3 mil Skived PTFE
Width Availability
(in)
Tensile Strength
(lbs/in width) (warp)
Elongation
(% - tension up to 10 PLI)
Min.
Pulley Dia. (ins - 180 warp) Drive
Idlers
Maximum Temperature (°F)
Continuous Intermittent
Maximum Allowable Working
Tension (lbs/in width)
58
450
less than 1
6
3
400
450
25
up to 75
360
less than 1
6
3
400
450
25
up to 162
350
less than 1
6
3
400
450
25
up to 78
425
less than
1/2
6
3
400
450
25
up to 175
370
less than
1
6
3
400
450
25
Chemfab®
Typical
Applications:
●
CHEMFAB-PTFE coated fiberglass offers a belting material of
proven performance in industry
●
Fiberglass is a durable, high temperature material that provides
maximum value
Product Style
Number
Fiber Length
(warp)
Content Width
(fill)
Coating
Weight
(oz/sq.yd)
Thickness
Open Area
(%)
Edge
Reinforcement
313X
GLASS
GLASS
PTFE
30.8
.024
0
Not Required
313XK
KEVLAR/GLASS
GLASS
PTFE
35.0
.030
0
Not Required
1565V
GLASS
GLASS
PTFE
29.0
.023
0
Not Required
183
GLASS
GLASS
PTFE
20.0
.024
0
Not Required
1584G
GLASS
GLASS
PTFE
32.0
.037
0
Not Required
1590
GLASS
GLASS
PTFE
13.0
.033
75
3 mil SKIVED PTFE
Width Availability
(in)
Tensile Strength
(lbs/in width) (warp)
Elongation
(% - tension up to 10 PLI)
Min.
Pulley Dia. (ins - 180 warp) Drive
Idlers
Maximum Temperature (°F)
Continuous Intermittent
Maximum Allowable Working
Tension (lbs/in width)
up to 170
460
less than
1/2
8
4
500
600
25
up to 155
900
less than
1/2
8
4
500
600
25
up to 170
500
less than
1/2
8
4
500
600
25
up to 62
600
less than
1/2
8
4
500
600
25
up to 66
1100
less than
1/2
8
4
500
600
25
up to 175
235
less than 1
10
3
500
600
15
Datasheet
Directory
ANDREW
ROBERTS INC. 215 OAK STREET• PO BOX 3775 • NATICK, MA 01760 •
TOLL FREE:
800.637.6694
Teflon® is a Registered Trademarks of E.I. du Pont de Nemours and Company used
under license by Andrew Roberts Inc.
sealed and/or stitched in place. A series
of castellated or crenel notches cut into the apex of
each fold form a pattern of
strength performance of the cable seam.
Alternately woven one side open and one side closed every
mechanical joining technique combined with
the benefits of an endless belt. Fill (cross-wise)
threads are removed at each belt end to free warp
(lengthwise) threads. The warp threads are then folded
back and rewoven into the belt carcass to form loops. The
two ends are then meshed together and joined by a pin
passed through the loops. Joining pins are available in
stainless steel or non-metallic materials.
heat sealed and/or stitched to a belt. This
will ensure a continuous release surface which will
inhibit mark-off from seam contamination and protect the
seams from abrasion. A flap over seam is generally used
with a metal seam and is available with all Saint-Gobain
Performance Plastics belting styles.
Alligator or Clipper
type metal lacing is locked into reinforced belt ends. The
laced ends are then meshed and joined by a pin. Available
in stainless steel, steel or Monel.
threads. The belt ends are then joined by
reweaving the warp threads into the belt carcass of the
opposite belt end. This technique produces a truly
endless belt with excellent tracking characteristics,
uniformity and greater overall flexibility than belts
with conventional seams.
locked together through heat sealing. A
finger splice used on a solid belt produces a very
smooth, continuous release surface.
