The new generation: CONTI POLYFLAT PU Flat Belts lightweight

The new generation:
CONTI POLYFLAT ®
PU Flat Belts
lightweight and reliable –
compact and strong
Power Transmission Group
ContiTech – Division of Continental Corporation
CONTI POLYFLAT® PU Flat Belts
enable drive designs of surprising compactness
with high strength and bending flexibility
Modern drive technology
combines dynamics, precision and in-service reliability at great economy.
To further this, we provide
a wide range of drive elements made of rubber and
polyurethane as well as
complete drive solutions.
As a development partner
and original equipment
manufacturer for numerous industries, we know
the needs of the markets.
Our products regularly
give new technological
perspectives to both users
and designers.
CONTI POLYFLAT PU
Flat Belts enable drive
designs of high reliability
and economy.
Conventional steel cord
8 strands per cord
19 steel wires per strand
altogether 152 steel wires
strand
steel wire
Innovative in material and design
Thanks to its greater flexibility and traction, the
CONTI POLYFLAT PU Flat Belt enables compact drives
with much smaller pulley diameters in comparison
to conventional drives with steel cords. Smaller drive
pulleys allow the use of space-saving drive motors and
secondary engineering.
Compact drive configurations with low inertia reduce
not only the manufacturing costs but also the power consumption.
The steel-reinforced belts made of modified polyurethane
are extremely flexible, hard-wearing, and durable. They
are virtually corrosion-proof due to their galvanised steel,
and their polyurethane coating ensures anti-slip traction
and efficient power transmission.
Used in combination with crowned pulleys they ensure
excellent power transmission and very smooth running.
The CONTI POLYFLAT PU Flat Belt received the
"iF Ecology Design Award 2001" in gold and the "iF Product
Design Award 2001" in silver.
PU belt reinforced
with steel cord, type XHP
12 steel cords per belt
7 strands per steel cord
7 single wires per strand
altogether 588 single wires
Steel cord
strand
single wire, zinc coating
Each PU belt contains more steel wires
than a conventional steel cable.
They have the same tensile strength
although they weigh less.
l
XHS
XHP
HS
HP
HP-Niro
HF
Outside material:
■ Polyurethane with 92 Shore A
■ Hard-wearing and durable
■ Unaffected by environmental influences
b
Tension member:
■ Compact steel cable strand design
h
Types
Belt design
The outside of the CONTI POLYFLAT PU Flat Belt
consists of polyurethane; the tension member takes
the form of a strand design.
The two opposing directions of lay of the steel cords
with their strands ensure neutral in-service properties.
The result: quiet and smooth running
■
■
■
■
■
■
Fzul in N for each 10 mm belt width
Selection of belts and pulleys
Types:
XHS – extremly high strength
XHP – extra high strength
HS – very high strength
HP – reinforced
HP-Niro – stainless steel
HF – flexible
Cable Ø h
Width b*[mm]
Weight mspec**
XHS
2.8
4.5
85/100/120
10.5 x 10-3
XHP
1.6
3
301)/601)/100/120
7.0 x 10-3
HS
1.2
2.5
10/15/20/25/30/40
50/55/85/100/120
5.3 x 10-3
HP
0.9
2.3
10/15/20/25/30
40/50/55/85/100
4.0 x 10-3
HP-NIRO 0.9
2.3
10/15/20/25/30
40/50/55/85/100
4.0 x 10-3
HF
2.1
10/15/20/25/30
40/50/55/85/100
3.2 x 10-3
6250
XHS
5250
4250
XHP
3250
HS
2250
HP
HP-NIRO
HF
1250
250
25
50
75
100
125
150
Fzul as a function of the pulley diameter
(normalised for 10 mm belt width)
175
200
225 250
Pulley diameter in mm
0.6
The belt is selected on the basis
of the circumferential force to be transmitted for the pulley size concerned.
■ Breaking strength of the belt approx.
3 x Fzul (max)
■ Thickness tolerance ± 0.3 mm***
■ Width tolerance ± 0.5 mm***
* further dimensions on request
** per mm belt width [kg/m]
*** special tolerances on request
1)
special tolerance for h, for
winding application
Pulley geometry
To promote the alignment of belts
the drive/deflection pulleys may be
designed as follows:
■ Cylindrical with side flanges
■ Convex with/without side flanges
It must be checked that the inclination of the shaft is suitable for the
size of the crowning.
■ More info on the barrelling is given
in DIN 111.
c
a
R
Thickness e
b
d
Detailed sizes upon request
End connector
CONTI POLYFLAT PU Flat Belts M30-F20 HP
M30 __
F __
20 __
HP __
length l=30 m
flat belt
belt width b=20 mm
reinforced type
Designation when ordering
The properties of the CONTI POLYFLAT
PU Flat Belt open up many new areas of application,
e.g. in lifting systems, car wash installations, forklifts,
handling devices and scissors-type lifting tables.
* Cspec [N/mm]
91 x 103
63 x 103
53 x 103
35 x 103
35 x 103
20 x 103
Test results: CONTI POLYFLAT
PU Flat Belt, type XHP
The service life of the steel cord-reinforced CONTI
POLYFLAT PU Flat Belt, type XHP is three times as long as
that of belts with conventional steel cables under the same
operating conditions. Endurance testing verified there
is only a slight reduction in the strength values after several
million load cycles. The traction testing on the cycle duration
similarly demonstrated the wear resistance of the system.
Steel Cord, Type XHP
ContiTech
Specialist in rubber and
plastics technology
The reliability of the
CONTI POLYFLAT Flat
Belt, type XHP is attained thanks to the use of
numerous high-strength
wires. The steel cords (diameter 1.67 mm) and their
parallel-to-edge alignment
increase the flexibility in
comparison to the steel
cable. In this way the
bearing face of the flat belt
is made wider and the pulley can be more easily
driven.
So the diameter of the
pulley can be reduced to
100 mm. The design of
wire/strand/cord in combination with the ultramodern manufacturing process enables an optimum
spreading of the polyurethane which hence
completely surrounds the
cables. This aspect in turn
keeps the wires in place
within a braid and bonds
the individual braids
together.
The result:
– small bending radius
– high strength
– low corrosion
The horizontal alignment
of the steel cords gives the belt its flat shape.
Illustration of the XHP version
only 30 and 60 mm width
Benefits of the new design:
■
■
■
■
■
■
■
Greater flexibility and traction
Pulley can be driven more easily
Smaller pulley diameter
Less belt stretching under load
Good running properties regarding noise and vibrations
Maintenance-free and space-saving drive element
High resistance to external influences
(e.g. weathering, wear, UV radiation)
The ContiTech Division is a
development partner and an
original equipment supplier to
many industries, and it provides
high-grade functional parts,
components and systems.
With their know-how in rubber
and plastics technology, the nine
business units make a contribution to safe and comfortable
mobility.
This is what the ContiTech
brand is all about.
ContiTech Specialist in rubber and plastics technology
www.contitech.de
Power transmission technology
worldwide
ContiTech
Antriebssysteme GmbH
D-30004 Hannover
ContiTech - INA GmbH & Co. KG
Belt Drive Systems
D-91072 Herzogenaurach
Continental do Brasil
Produtos Automotivos Ltda.
BR-84043-450 Ponta Grossa-Pr
ContiTech
Power Transmission
Systems Ltd.
GB - Wigan, WN2 4WZ
ContiTech Mexicana S.A. de C.V.
ContiTech Power
Transmission Products
MEX-C.P. 78090 San Luis Potosí,
S.L.P.
WT 4919 E 03.05 (DMR) Printed with CONTI AIR® offset printing blankets on leached paper free of chlorine
ContiTech-Jiebao
Power Transmission Systems Ltd.
PRC-315611 Zhejiang
ContiTech Romania S.R.L.
Parcul Industrial Freidorf
ROM-1900 Timisoara
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Fax 02236 4 91 01 49
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Industriepark, Molenberglei 24
B-2627 Schelle
Phone 03 8 80 71 40
Fax 03 8 80 71 41
ContiTech Continental Suisse S.A.
Lerzenstrasse 19
CH-8953 Dietikon 1
Phone 043 343 20 10
Fax 043 343 20 11
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Niederlassung Berlin
Köpenicker Straße 184
D-12355 Berlin (Rudow)
Phone 030-66 92 08 03
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Am Waldstadion 4
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del Caucho S.A. ContiTech
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E-08940 Cornellà (Barcelona)
Phone 93 480 04 00
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Continentalstraße 1, D-29451 Dannenberg
Phone +49 5861 806-0
Fax +49 5861 806-302
E-Mail: [email protected]
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Postfach 445, D-30004 Hannover
Philipsbornstraße 1, D-30165 Hannover
Phone +49 511 938 -71
Fax +49 511 938 -52 32
Email: [email protected]
www.contitech.de/antriebssysteme
ContiTech France SNC
3, rue Fulgence Bienvenue CE 147
F-92631 Gennevilliers
Phone 1 41.47.92.92
Fax 1 47.92.08.22
Z.I. de la Silardiére
F-42500 Le Chambon Feugerolles
Phone 4 77.10.19.45/46
Fax 4 77.10.19.71
ContiTech Power
Transmission Systems Ltd.
Leigh Rd, Hindley Green
GB-Wigan, WN 2, 4WZ
Phone 1942 52 55 00
Fax 1942 52 40 00
ContiTech AG Shanghai Office
Rm. 906B Block C
Orient International Plaza
No. 85 Lou Shan Guan Lu
PRC-200335 Shanghai
Phone 021 62 78 77 38
Fax 021 62 78 77 40
ContiTech Scandinavia AB
Finlandsgatan 14
S-16493 Kista
Phone 08 4 44 13 30
Fax 08 7 50 55 66
Continental
Tyre and Rubber (S) Ltd.
298 Tiong Bahru Road
#02-01 Tower Block
Tiong Bahru Plaza
SGP-Singapore 168730
Phone 6 377 1223
Fax 6 377 2202
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136, Summit Avenue
USA-Montvale, NJ 07645
Phone 201 930-0600
Fax 201 930-0050
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