Comparison of the characteristics
Temperature
Strenght
ZX-530 has got a balanced characteristic profile. On its maximum
PTFE
PEEK
PV-value
Impact
resistance
performance level, lie the chemical resistance, wear and PV value. The
ceramic Al2O3
other characteristics are above average. The material costs are many
PE UHMW
Friction
Characteristics
good
bad
Precision
Wear
100
ZX-530
PEEK
PV value [MPa x m/min]
the unit cost in a large-scale manufacturing could lie on the same level
of PTFE.
Th. expansion coefficient (ISO E830)
Coefficient of thermal expansion [1x10-5/K]
Admissible PV-value
PTFE
80
PE UHMW
60
40
20
0
ZEDEX
®
Tr i b o l o g i c a l P o l y m e r S o l u t i o n s
times lower than PEEK. If simple processing options are considered,
ZX-530
Cost
50
Flexural E-Modulus (ISO 178)
5.000
ZX-530
PEEK
PTFE
40
I NFO
ZX-530
PEEK
PE UHMW
30
20
10
Flexural E-Modulus [MPa]
Chemical
resistance
PTFE
4.000
PE UHMW
3.000
2.000
ZX-530 overcomes PTFE and ceramic by a clever average
1.000
0
0
There is a wide range of applications
got an extreme property; the wear char-
for ceramics and PTFE, thanks to their
acteristics, when operating in dry run-
remarkable and extreme properties.
ning condition, are 400 times lower than
However, both materials have also got
those of PTFE. Nevertheless, costs can
serious disadvantages. Ceramics are too
be reduced when operating with ZX-
brittle for some applications and PTFE
530, because it can be well machined,
is often too soft. Many applications
welded and injection moulded. We hope,
require a material, which does not have
that also you may finally be able to
the disadvantages of PTFE and ceram-
build machines and plants, by means of
ics, but - on the other hand - reconciles
the new material you have always been
the advantages of both materials.
waiting for. Further characteristic val-
Thanks to our recent product develop-
ues can be taken from the illustrations
Bioreactor
ment in the field of high-temperature
or please ask for our documentations.
Bearings installed in film
processing devices
The bearing is installed into the film
between those of PTFE and ceramics
Impeller shaft and bearings, made of ZX-530, for
bioreactors
and show a reasonable average. ZX-
Up to now, for the agitation of the
used for the film transport.
530 does neither have the brittleness of
culture medium was used a stainless
or as problem-free finished pro-
ceramics nor the strong creep of PTFE,
steel shaft, with bearings made of PTFE
duct. From prototype to large-scale
but it holds the right average. Further-
or PEEK. After a short usage, due to
more, it is neither as soft as PTFE,
the severe wear, an inadmissible high
nor so extremely hard and brittle like
backlash came into being, which led to
solutions and technological advan-
ceramics. However, some properties of
oscillations and to an impairment of the
tages.
ZX-530, as for example the chemical
cell proliferation. After the initial tests,
resistance, do not show a compromise.
ZX-530 showed to be extremely resist-
The chemical resistance of ZX-530 lies
ant to wear and Stick-Slip free.
on the same level of the PTFE one.
ZX-530 is biocompatible, not toxic for
Bearing used in the application
Talking about wear, the differences are
the cells and it is now used as an impel-
It is required a high chemical resistant
even more marked. Here, ZX-530 has
ler shaft.
bearing material, because the bear-
1
10
100
20
40
60
80
Sliding speed [m/min]
100
120
140
160 180
20
240
40
Wear (Temperature)
1000
PTFE
PTFE +60%BZ
PE UHMW
600
400
10,00
Friction coefficient
Wear [mm/100km]
800
1,00
0,10
200
0,35
PTFE
PTFE + Mica
100 120 140 160 180 200 220 240
0,40
PEEK
ZEDEX 530
80
Range of coefficient of friction
ZX-530
100,00
60
Temperature [°C]
Temperature [°C]
Wear (Sliding distance)
wear [µm]
200 220
µ dyn. dry
µ dyn. oil
µ stat. dry
µ stat. oil
0,30
0,25
0,20
0,15
0,10
0,05
0,00
0,01
0
0
10
20
30
40
50
60
70
80
90
20
sliding distance [km]
Wear comparison between PTFE and ZX-530
40
60
80
100 120 140 160 180 200 220 240
Temperature [°C]
Wear in dry running condition on steel
PEEK
PE UHMW
ZX-530
PTFE
Friction in dry running and with oil lubrication on steel.
Temperature range from 20°C up to 100°C, surface
pressure from 0.5MPa up to 5 MPa
Solutions
Samples of ZX-530
We realize your product made of
To convince you about the suitability of
thermoplastics, called “ZEDEX-530”,
high performance plastic. From low
the high performance plastic ZX-530
we are now able to meet these de-
cost to high-tech, whether simple
in your application, we are prepared to
or unbelievable, as standard part or
produce plastic granules, semi-finished
customized to your requirements.
products or to realize samples for tests
Either as granules, semi-finished
according to your drawing.
manufacturing. Benefit from our
knowledge. We offer cost effective
Wolf Kunststoff-Gleitlager GmbH
Heisenbergstr. 63-65
D-50169 Kerpen-Türnich
Telefon: +49 2237 9749-0
Telefax: +49 2237 9749-20
Email: [email protected]
www.zedex.de
Try us!
Here was someone faster
than you.
Please ask for the material samples.
– Plastic wear resistance parts
– Plastic machine elements
– Customer service
– Materials development
– Components design
– Prototypes production
– Large-scale manufacturing
plastic bearings
mands. The ZEDEX-530‘s properties lie
processing unit of x-ray devices and
here, it works as bearing of the shafts
Comparison of the properties
ing has to operate with chemicals with
life of at least 5 years. Now we use the
stress without big shape variations, but
pH-values from 2 to 12. Additionally
bearing material ZX-530, which shows
the coefficient of static friction, with oil
salts and abrasive particles may pen-
a very high chemical resistance, low
lubrication, was so high that a switching
etrate into the bearing seat. The bearing
coefficients of friction and a very high
of the valve, also without pressure, was
must have a tight bearing clearance
wear resistance.
impossible.
and furthermore it should not consider-
After test bed trials and laboratory
ably change its mechanical properties,
tests this material has been classified as
not even under the influence of ozone.
excellently suitable and the previously
The previously used ball bearing did not
used anti-friction bearings have been
meet the required demands. As a substi-
replaced. Since then, ZX-530 has been
Ball indentation hardness H358/30 (H132/30)
tute, a slide bearing made of polyamide
installed as a standard feature in these
11 and then one made from PEEK, was
ZX-530
PEEK
PTFE
PEUHMW
Ceramic
Al2O3
ISO 1183
1,51
1,32
2,16
0,98
3,9
MPa
DIN EN ISO 527
3500
3600
1400
900-1500
300000
MPa
DIN EN ISO 527
50
96
20-40
22-30
320
eB
%
DIN EN ISO 527
4,5
7,5
>50
>50
0,1
flexural E-modulus
Ef
MPa
DIN EN ISO 178
3000
4800
600-800
600-1400
350000
Flexural strength
sfM
MPa
DIN EN ISO 178
81
168
18-20
45
400
Flexural strain at break
eB
%
DIN EN ISO 178
5,2
n.b.
n.b.
>50
-
4
4
66
1
1
22
10
10
134
174
28
38
-
Properties
Symbol
Unit
r
kg/dm3
Tensile modulus
Et
Tensile strength
sM
ZX-530 is now used as standard feature.
Elongation at break
It meets the demand for chemical
Density
Creep strength
applications, with a cost advantage of
relative value (1 bad, 10 good)
HB
N/mm²
DIN 2039
Shore D hardness
Shore
DIN 53505
83
83
55
63
100
Impact strength Charpy notched
kJ/m2
EN ISO 179/1eA
9,17
n.b.
>80
>70
-
°C
UL 746B
240
250
260
80
1800
DSC
Continuous operating temperature
4,5€ per piece.
Standard
Melting temperature
Tm
°C
320
360
327
130
2060
a
Seals in ball valves
Coeff. of thermal expansion up to 100°C
10-5/K
ISO E 830
6
5
15-20
14-18
0,8
Ball valve NW 150
Coeff. of thermal expansion up to 150°C
a
10-5/K
ISO E 831
9
6
15-20
-
0,8
Ball valves sealed with two sealing
resistance, dimensional stability and
Heat distortion temp. HDT/A 1,8 MPa
HDTA
°C
DIN EN ISO 75
130
160
70
38-50
-
l
W/(m*K)
DIN 52612
0,24
0,25
0,24
0,42
30
UL 94 HB
V-0
V-0
V-0
V-0
incombustible
4,5E16
5E16
1E17
>1E15
1E14
0,01
0,05
0,05
0,1
-
Thermal conductivity
rings are applied in units for the use of a
low friction. The friction coefficients are
special fuel. For technical reasons, also
now so low, that is possible switching
the sealing rings have to withstand both
the valve under full load, without any
Bearing made of ZX-530
the high pressure and a temperature of
problems. Previously, this was not pos-
inserted.
140°C/160°C. The valve must also can
sible neither with PTFE with glass-fibre
These materials lead to extremely high
be switched at high pressure. The previ-
nor with PEEK. An additional advan-
Special types
signs of wear on the bushing and on the
ous sealing rings made of PTFE with
tage over the so far used PEEK, is a
ZX-530EL3
ZX-530KF15
ZX-530CD3
stainless steel shaft, and they caused
30% glass-fibre, did not withstand the
cost reduction of about 40%.
high elongation at break
stiff, antistatic
high thermal conductivity
early breakdowns. Therefore the high
pressure and the high temperature. The
Shore hardness D 81
tensile E-modulus 4000 MPa
good dissipation of friction heat,
wear on the bushing and on the stainless
large deformation of the PTFE rings,
T: –100 ° C up to +220ºC (+240ºC)
T: –50 ºC up to +240 ºC (260ºC)
extremely low wear, antistatisc
steel screw had to be strongly mini-
developed in a short time, led to leak-
p: 25 MPa (71 MPa)
p: 50 MPa (120 MPa)
T: -100 ºC up to +240 ºC (260 ºC)
mised, in order to achieve a working
ages. PEEK, instead, have withstood the
v: max. 50 m / min
v: max. 100 m /min
p: 20 MPa (56MPa)
Fire behaviour (3,2mm) UL94
Volume resistivity
Water absorpion 23°C / RF 93%
Ω*cm
%
IEC 93
DIN EN ISO 62
v: max. 300 m/min
Operational conditions
Applications
Field of application
Characteristics of ZX-530
– Outstanding sliding properties
Available as
– Temperature: –100 °C up to +240 °C
– Magnet housing
– Chemical industry
– Chemical resistant
– Extremely wear resistant
– Plastic granules
– Surface pressure: max. 25 (74) MPa
– Gears
– Laboratory equipment
– Long-term service temperature:240 °C
– Rods Ø 6 up to 200 mm
– Sliding speed: max. 300 m /min
– Bearings for impeller shaft
– Electroplating
– Hydrolysis resistant
– Low creep
– Tubes Ø 30 up to 350 mm
– Suitable for outdoor use and in water
– Seals
– Materials handling equipment
– Autoclavable
– Viscoplastic
– Sheets 6 up to 32 mm (thickness)
– Strong chemicals
– Couplings
– Automotive
– Sterilizable
– Easily machinable
– Machined finished parts
– Motion nuts
– Drive engineering
– Biocompatible
– Boldable
– Injection moulded parts
– Bearing segments
– Biotechnology
– Physiological harmless
– Weldable
– Plain bearing bushes according to DIN
– Rotatory valves
– Plant construction
– Resistant to mycobacterial attack
– Injection moulded
– Plain bearing bushes
– Medical technology
– Very low desorption
– Cheaper than PEEK
– Chutes lining
– Offshore industry
– Track rollers
– Semiconductor industry
– Wiper
– Solar industry
– Coatings
(approximately like PTFE)
(suitable for clean room applications)
– Self-extinguishing (it does not continue to burn after the flame removal)
– Non-stick
– Low density