Data and facts concerning steel belts · 2020-07-08 · Steel belts up to and including 60,000 mm...
Transcript of Data and facts concerning steel belts · 2020-07-08 · Steel belts up to and including 60,000 mm...
Continuous reliabilityData and facts concerning steel belts
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Steel Belts | Belt Systems | Worldwide Service
Berndorf Band GroupBerndorf Band Group stands for steel belts and belt systems of highest quality as well as a worldwide service network. As global full-line supplier our products are used in continuous production processes in various manufacturing industries. The excellent work of research and development in Berndorf gives us the possibility to adapt the characteristics of our extensive product portfolio, so that every single product fits to the required individual customer needs.
The following information provides a basis for technical designs, containing standard and empirical values, as well as formulas for calculations. This brochure is dedicated both, to steel belt users and machine manufacturers. It should be used as a guide to avoid mistakes and thus extend the lifetime of a steel belt.
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Steel belts
» High quality materials: stainless steel, carbon steel, titanium
» Surfaces: mill finished, ground, polished, textured, perforated, chromium plated, coated
» Length: 1.4 to 270 m 4.59 to 885.83 ft
» Width: 0.1 to 9 m 3.96 to 354.36 in
» Thickness: 0.3 to 3.5 mm 0.012 to 0.138 in
Service portfolio
» Worldwide service network » Fast and high quality service » Expert advice » Regional customer
training centers » Worldwide test centers
Belt systems
» Conveyor systems » Double belt presses » Casting and drying systems » Process Equipment » Machine components
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Steel Belts | Belt Systems | Worldwide Service
Reference point for further explanations in this brochure.
Basic structure of steel belt systems
A ... Centre to centre distance between drums in m (ft) d ... Drum diameter in mm (in) W ... Width of the steel belt in mm (in) t ... Thickness of the steel belt in mm (in) F ... Tensioning force in N D ... Sag between drums in mm (in) CWS ... Cross welding seam
A
t
d
D
W
F
F
CWS
polygonzugGEWICHT:
A0
BLATT 1 VON 2MASSSTAB:1:20
ZEICHNUNGSNR.
BENENNUNG:
ÄNDERUNGZEICHNUNG NICHT SKALIEREN
WERKSTOFF:
DATUMSIGNATURNAME
ENTGRATENUND SCHARFEKANTENBRECHEN
OBERFLÄCHENGÜTE:WENN NICHT ANDERS DEFINIERT:BEMASSUNGEN SIND IN MILLIMETEROBERFLÄCHENBESCHAFFENHEIT:TOLERANZEN: LINEAR: WINKEL:
QUALITÄT
PRODUKTION
GENEHMIGT
GEPRÜFT
GEZEICHNETA A
B B
C C
D D
E E
F F
G G
H H
J J
K K
L L
M M
N N
P P
R R
T T
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бb= E . t_______
d
Belt deflectionEvery endless steel belt is directed by drums or guiding and supportingsheaves; sometimes further support by idler rollers or skid bars is necessary. Attention should be paid to the following:
Deflection diameter
If the thickness t of the steel belt is known (data in mm/in), a deflection diameter of 1,000 x t is recommended as a general rule.
In the event that a smaller deflection diameter is used, it is necessary tocalculate the tension forces in detail. Otherwise the steel belt may sufferdamage at an early stage. Steel belt specialists from Berndorf Band Groupare happy to provide you with advice.
Planar contact of the steel belt against the drum causes a high bendingstress at the product surface when deflecting. This bending stress can becalculated as below.*
*When using guiding and supporting sheaves, the same formula is valid.
6b ... Bending stress in N/mm2 (psi) E ... Modulus of elasticity of the belt material in N/mm2 (psi) t ... Thickness of the steel belt in mm (in) d ... Drum diameter in mm (in)
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Steel Belts | Belt Systems | Worldwide Service
Au
Du
A A
B B
C C
D D
E E
F F
G G
H H
J J
K K
L L
M M
N N
P P
R R
T T
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polygonzugGEWICHT:
A0
BLATT 2 VON 2MASSSTAB:1:20
ZEICHNUNGSNR.
BENENNUNG:
ÄNDERUNGZEICHNUNG NICHT SKALIEREN
WERKSTOFF:
DATUMSIGNATURNAME
ENTGRATENUND SCHARFEKANTENBRECHEN
OBERFLÄCHENGÜTE:WENN NICHT ANDERS DEFINIERT:BEMASSUNGEN SIND IN MILLIMETEROBERFLÄCHENBESCHAFFENHEIT:TOLERANZEN: LINEAR: WINKEL:
QUALITÄT
PRODUKTION
GENEHMIGT
GEPRÜFT
GEZEICHNET
Belt tensionIn order to transmit the rotation of the drum or guiding and supportingsheaves to the steel belt it is necessary to tension the steel belt. This leads to a tension within the steel belt. When tensioning forces are known, calculation is as below:
See basic sketch on page 4.
If the steel belt is already installed in a conveyor, the tensioning force F and the belt tension бz can be calculated as follows:
бz ... Belt tension in N/mm² (psi) F ... Tensioning force in N t ... Thickness of the steel belt in mm (in) W ... Width of the steel belt in mm (in) A ... Centre to centre distance between drums in m (ft) Au ... Centre to centre distance between belt supports in m (f) D ... Sag between drums in mm (in) Du ... Sag between belt supports in mm (in) γ ... Densityofbeltmaterialinkg/dm3 (lbm/in3) g ... Gravity acceleration = 9.81 m/s2 (32.19 f/s2)
Belt material Densitykg/dm³ | lbm/in³
Steel 7.85 | 0.28
Titanium 4.53 | 0.16
Rule of thumb for steel belts:Only when using metric system.
бz= F_____ t . W
F = A² . W . t .γ. g____________
8 . D
бz= A² .γ. g_______8 . D
бz≈ Au² . 10_______
Du
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Recommended belt tensionIn general a minimum belt tension of 10 N/mm² (1,450 psi) in order to gurantee the drive of the drum, respectively of the guiding and supporting sheaves to the steel belt, is recommended. Depending on the belt material and specification, the following maximum belt tension in N/mm² (psi), as a principle, is acceptable:
Endless welded steel belts:CARBO NICRO TITANIUM
Belt without vee-ropes over drum up to 100 N/mm2 | 14,504 psi 35 N/mm2 | 5,076 psi
Belt with vee-ropes over guiding and supporting sheaves up to 10 N/mm2 | 1,450 psi
Rivet joints diameter Rivet joints distance
Steel belt thicknessup to 0.6 mm | 0.024 in 2.7 mm | 0.106 in 15 mm | 0.591 in
Steel belt thicknessabove 0.6 mm | 0.024 in 4.8 mm | 0.189 in 25 mm | 0.984 in
Endless steel belts with rivet joints:
At rivet joints a maximum belt tension of 15 N/mm² (2,176 psi) applies to all steel belts, independent of the material used. In case a higher belt tension is required, we recommend consulting Berndorf Band Group.*
*Contact: www.berndorfband-group.com
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Steel Belts | Belt Systems | Worldwide Service
Belt production of endless steel beltsFrom high mirror polished to textured, Berndorf steel belts run through efficient production processes to meet the highest quality standards. During each production step all steel belts run in endless condition between two drums. The result of this production method is perfect straight running behaviour.
Incoming inspection & lab
Flattening
High-mirror polished steel belt
Longitudinal welded steel belt
Textured steel belt
Steel belt with vee-ropes
Trimming
Flattening Trimming
Milling belt ends
T
Laser welding Grinding Polishing Final inspection
Inspection
Packing
Flattening Trimming Vulcanizing vee-ropes
Milling belt endsInspection
Flattening Trimming Milling belt ends
T
Laser welding Grinding Texturing
-
+
Chrome plating Trimming
Longitudinal welding
Flattening Thermal treatment Flattening Grinding Trimming Packing
Final inspectionGloss Packing
Milling belt ends Final inspection
Final inspection Packing
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For customers this means less downtime as a result of tracking problems and longer belt life due to less belt damage. Our steel belts offer excellent flatness, leading to best product quality.
Incoming inspection & lab
Flattening
High-mirror polished steel belt
Longitudinal welded steel belt
Textured steel belt
Steel belt with vee-ropes
Trimming
Flattening Trimming
Milling belt ends
T
Laser welding Grinding Polishing Final inspection
Inspection
Packing
Flattening Trimming Vulcanizing vee-ropes
Milling belt endsInspection
Flattening Trimming Milling belt ends
T
Laser welding Grinding Texturing
-
+
Chrome plating Trimming
Longitudinal welding
Flattening Thermal treatment Flattening Grinding Trimming Packing
Final inspectionGloss Packing
Milling belt ends Final inspection
Final inspection Packing
Packaging example for open steel belts
Packaging example for endless steel belts
Packaging example for textured steel belts
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Steel Belts | Belt Systems | Worldwide Service
Basic information for steel belts*
Steel belts from Berndorf Band Group are, besides other features, specified by length, width and thickness. In this regard the following tolerances are standard:
Length tolerance
Steel belts up to and including 60,000 mm (196.85 ft) : ± 50 mm (± 0.16 ft)Steel belts with more than 60,000 mm (196.85 ft) : ± 100 mm (± 0.33 ft)
Width tolerance
Width of steel belts without longitudinal welding seam: ± 1 mm (± 0.039 in)Width of steel belts with longitudinal welding seam: ± 2 mm (± 0.079 in)
Thickness tolerance
Mill finished steel belts, open, excluding welding seam area:± 10% of the nominal thicknessGround finished steel belts, excluding welding seam area:± 0,1 mm (± 0.004 in) of the nominal thickness
*Special agreements are available upon request.
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Thickness deviation of mill finished belts*
Without longitudinal welding seamin mm | in
With longitudinal welding- / spiral welding seam in mm | in
Thickness Max. Deviation Thickness Max. Deviation≤ 1.3 | ≤ 0.051 0.100 | 0.0039 ≤ 1.3 | ≤ 0.051 0.120 | 0.0047
> 1.3 up to ≤ 1.6 | > 0.051 up to ≤ 0.063 0.120 | 0.0047 > 1.3 up to ≤ 1.6 |
> 0.051 up to ≤ 0.063 0.140 | 0.0055
> 1.6 | > 0.063 0.140 | 0.0055 > 1.6 | > 0.063 0.160 | 0.0063
Without longitudinal welding seam in mm | in
With longitudinal welding- / spiral welding seam in mm | in
Total Longitudinalalignment Total Longitudinal
alignment
0.050 | 0.0020 0.030 | 0.0012 0.060 | 0.0024 0.040 | 0.0016
Thickness deviation on ground or polished belts*
*Thickness deviation in the cross welding seam area up to 0.1 mm (0.004 in). Special agreements are available upon request.
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Steel Belts | Belt Systems | Worldwide Service
Standard dimension in endless condition*
Depending on the requirements and the machine layout Berndorf steel belts can be installed in open condition as well as in endless condition.
MaterialWidth in m | in Length in m | ft Thickness in mm | in
Max. Min. Max. Min. Max.
NICRO 9.0 | 354.33 1.4 | 4.59 270 | 886 0.3 | 0.012 3.5 | 1.378
CARBO 3.0 | 118.11 7.0 | 22.97 270 | 886 0.6 | 0.024 1.4 | 0.055
TITANIUM 3.0 | 118.11 7.0 | 22.97 100 | 328 1.0 | 0.039
Surface qualitiesDepending on the application the appropriate surface for theproduct side and the inner side of the steel belt has to be defined. Berndorf Band Group offers steel belts with the following standardsurfaces:*
» mill finished » ground » polished » textured » perforated » chromium
plated » coated
*Specially surface treated steel belts can be produced upon agreement.
*Further dimension upon request.
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Mill finished
Surface finish is in accordance with norm 2R per DIN EN 10028, resp. 2B per ASTM, resp. MA per DIN EN 1039. Smooth and clean, metallically clean, minor surface defects are admissible.
Typical roughness for ground and polished surfaces*
DescriptionGroundfinished Polished
G-4,0 G-2,5 G-0,63 P-GEM 0,3 P-GEM 0,12 P-C
Rt in micrometerRt in mil
6.300.2480
4.000.1575
1.000.0394
0.400.0157
0.160.0063
0.0630.0025
Rz in micrometerRz in mil
4.000.1575
2.500.0984
0.630.0248
0.300.0118
0.120.0047
0.0500.0020
Ra in micrometerRa in mil
0.600.0236
0.400.0157
0.080.0031
0.040.0016
0.020.0008
0.0070.0003
Rt ... max. roughness depth Rz ≡ Rtm ... averaged roughness depth Ra ≡ AA ≡ CLA ... mean roughness index
*Roughness values for chromium plated surfaces upon request.
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Steel Belts | Belt Systems | Worldwide Service
FlatnessFollowing standards apply to steel belts from Berndorf Band Group. Maximum ratio h:L at belt tension 10 N/mm² (1,450 psi).
NICRO 12.1NICRO 22
NICRO 22VNICRO 31NICRO 52NICRO 70NICRO 85NICRO 94
NICRO 52.6NICRO 62.5
CARBO 13CARBO 24CARBO 32
TITANIUM
Wave height : Wavelength
Without longitudinal welding seam
1:350 1:200 1:350 1:350
With longitudinal welding seam
1:250 1:200 1:250 -
Perforated (also valid for cross welding seam)
1:200 1:200 1:200 -
Belts with vee-ropes 1:200 1:200 1:200 -
Cross welding seam area 1:250 1:200 1:200 1:250
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S
S
Belt edge straightnessThis term describes the longitudinal alignment of the belt. It shows the deviation of a steel belt edge with regards to the ideal straight line. Please refer to the sketches below. Due to the production in endless condition, steel belts from Berndorf Band Group are characterised by excellent belt edge straightness.
As a standard, the straightness deviation „S“ can be up to 2/10,000 of the steel belt length, but 20 mm (0.787 in) at the maximum.*
*Special agreements upon request.
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Steel Belts | Belt Systems | Worldwide Service
Retaining strips and vee-ropesSteel belts of Berndorf Band Group can be provided with retaining stripsand/or vee-ropes. A special production process gurantees perfect adhesion of the ropes and strips, independently from different mechanical load and working temperatures.
Retaining strips
Product retaining strips allow the pouring of viscous products onto the surface of the belt without the product running off the edges. An examplefor the use of retaining strips is the production of biscuit dough. Depending on the type of strips, they can be connected to the belt by means of bolts and a screw connection or by the use of a special glue.
Retaining strip-material Operating temperatures
Nitrile rubber -20 °C to +100 °C | -4 °F to +212 °F
Natural rubber -60 °C to +60 °C | -76 °F to +140 °F
Silicone rubber -80 °C to +300 °C | -112 °F to +572 °F
Retaining strips
Vee-ropes
17
22 mm (0.866 in)
1 mm(0.039 in)
20 m
m
(0.7
87 in
)
Band / Belt
6,5 mm (0.256 in)
18 mm (0.709 in)
A A
B B
C C
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SSPLGEWICHT:
A0
BLATT 1 VON 1MASSSTAB:2:1
ZEICHNUNGSNR.
BENENNUNG:
ÄNDERUNGZEICHNUNG NICHT SKALIEREN
WERKSTOFF:
DATUMSIGNATURNAME
ENTGRATENUND SCHARFEKANTENBRECHEN
OBERFLÄCHENGÜTE:WENN NICHT ANDERS DEFINIERT:BEMASSUNGEN SIND IN MILLIMETEROBERFLÄCHENBESCHAFFENHEIT:TOLERANZEN: LINEAR: WINKEL:
QUALITÄT
PRODUKTION
GENEHMIGT
GEPRÜFT
GEZEICHNET
22 mm (0.866 in)
1 mm(0.039 in)
20 m
m
(0.7
87 in
)
Band / Belt
6,5 mm (0.256 in)
18 mm (0.709 in)
A A
B B
C C
D D
E E
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G G
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P P
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T T
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SSPLGEWICHT:
A0
BLATT 1 VON 1MASSSTAB:2:1
ZEICHNUNGSNR.
BENENNUNG:
ÄNDERUNGZEICHNUNG NICHT SKALIEREN
WERKSTOFF:
DATUMSIGNATURNAME
ENTGRATENUND SCHARFEKANTENBRECHEN
OBERFLÄCHENGÜTE:WENN NICHT ANDERS DEFINIERT:BEMASSUNGEN SIND IN MILLIMETEROBERFLÄCHENBESCHAFFENHEIT:TOLERANZEN: LINEAR: WINKEL:
QUALITÄT
PRODUKTION
GENEHMIGT
GEPRÜFT
GEZEICHNET
5 m
m
(0.1
97 in
)
40°
17 m
m
(0.6
69 in
)
20 mm (0.787 in)
0.14
0 in
(3,6
mm
)
40°
0.880 in(22,6 mm)
0.76
0 in
(19,
4 m
m)
A A
B B
C C
D D
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H H
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SPL EU-USAGEWICHT:
A0
BLATT 1 VON 1MASSSTAB:5:1
ZEICHNUNGSNR.
BENENNUNG:
ÄNDERUNGZEICHNUNG NICHT SKALIEREN
WERKSTOFF:
DATUMSIGNATURNAME
ENTGRATENUND SCHARFEKANTENBRECHEN
OBERFLÄCHENGÜTE:WENN NICHT ANDERS DEFINIERT:BEMASSUNGEN SIND IN MILLIMETEROBERFLÄCHENBESCHAFFENHEIT:TOLERANZEN: LINEAR: WINKEL:
QUALITÄT
PRODUKTION
GENEHMIGT
GEPRÜFT
GEZEICHNET
EU Profil
5 m
m
(0.1
97 in
)
40°
17 m
m
(0.6
69 in
)
20 mm (0.787 in)
0.14
0 in
(3,6
mm
)40°
0.880 in(22,6 mm)
0.76
0 in
(19,
4 m
m)
A A
B B
C C
D D
E E
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H H
J J
K K
L L
M M
N N
P P
R R
T T
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SPL EU-USAGEWICHT:
A0
BLATT 1 VON 1MASSSTAB:5:1
ZEICHNUNGSNR.
BENENNUNG:
ÄNDERUNGZEICHNUNG NICHT SKALIEREN
WERKSTOFF:
DATUMSIGNATURNAME
ENTGRATENUND SCHARFEKANTENBRECHEN
OBERFLÄCHENGÜTE:WENN NICHT ANDERS DEFINIERT:BEMASSUNGEN SIND IN MILLIMETEROBERFLÄCHENBESCHAFFENHEIT:TOLERANZEN: LINEAR: WINKEL:
QUALITÄT
PRODUKTION
GENEHMIGT
GEPRÜFT
GEZEICHNET
USA Profil
22 mm (0.866 in)
1 mm(0.039 in)
20 m
m
(0.7
87 in
)
Band / Belt
6,5 mm (0.256 in)
18 mm (0.709 in)
A A
B B
C C
D D
E E
F F
G G
H H
J J
K K
L L
M M
N N
P P
R R
T T
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SSPLGEWICHT:
A0
BLATT 1 VON 1MASSSTAB:2:1
ZEICHNUNGSNR.
BENENNUNG:
ÄNDERUNGZEICHNUNG NICHT SKALIEREN
WERKSTOFF:
DATUMSIGNATURNAME
ENTGRATENUND SCHARFEKANTENBRECHEN
OBERFLÄCHENGÜTE:WENN NICHT ANDERS DEFINIERT:BEMASSUNGEN SIND IN MILLIMETEROBERFLÄCHENBESCHAFFENHEIT:TOLERANZEN: LINEAR: WINKEL:
QUALITÄT
PRODUKTION
GENEHMIGT
GEPRÜFT
GEZEICHNET
Vee-ropes
When using steel belts, a good belt run is essential. With vee-ropes the steel belt is positively guided. Different working temperatures do not damage the vee-ropes, because the temperature changes have no effects to the ropes (see table below). Depending on the material and type of the guiding and supporting sheaves the suitable vee-rope is selected from a big variety of different types of vee-ropes.
Vee-rope-material Operating temperatures
Nitrile rubber -20 °C to +100 °C | -4 °F to +212 °F
Natural rubber -60 °C to +60 °C | -76 °F to +140 °F
Spiral vee-rope made of stainless steel exceeding +100 °C | exceeding +212 °F
Standard profiles
Spiral vee-rope
18
Steel Belts | Belt Systems | Worldwide Service
bt a
a
a
a = Lochmittenabstandb = Lochdurchmessert = Banddicke
typische Perforationen:1) a = 5 mm / b = 2,5 mm / t = 1,2 mm2) a = 6,5 mm / b = 3,0 mm / t = 1,2 mm & 1,6 mm3) a = 5 mm / b = 3,1 mm / t = 1,2 mm
Diese Beispiel zeigt a=5mm, b=2,5mm
A A
B B
C C
D D
E E
F F
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L L
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N N
P P
R R
T T
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MaßeGEWICHT:
A0
BLATT 1 VON 1MASSSTAB:2:1
ZEICHNUNGSNR.
BENENNUNG:
ÄNDERUNGZEICHNUNG NICHT SKALIEREN
WERKSTOFF:
DATUMSIGNATURNAME
ENTGRATENUND SCHARFEKANTENBRECHEN
OBERFLÄCHENGÜTE:WENN NICHT ANDERS DEFINIERT:BEMASSUNGEN SIND IN MILLIMETEROBERFLÄCHENBESCHAFFENHEIT:TOLERANZEN: LINEAR: WINKEL:
QUALITÄT
PRODUKTION
GENEHMIGT
GEPRÜFT
GEZEICHNET
PerforationsPerforations are generally suitable for a belt thickness of 0.6 - 1.6 mm (0.024 - 0.063 in). In the baking and food industry perforated steel belts primarily find their application to support the dry and baking process. Thanks to the perforations a uniform result of the bakery product is ensured.
*Further perforations available on request.
Perforations* Hole diameter b Triangular pitch a Open area
Standard 1 2.5 mm | 0.098 in 5.0 mm | 0.197 in 22.68%
Standard 2 3.0 mm | 0.118 in 6.5 mm | 0.256 in 19.32%
Standard 3 3.1 mm | 0.122 in 5.0 mm | 0.197 in 34.87%
Both edge areas and the surrounding area of the cross welding seam are excluded from the perforation to ensure the strength of the steel belt.
min. 50 mm (2 in)
min. 50 mm (2 in)
Cross welding seam
A A
B B
C C
D D
E E
F F
G G
H H
J J
K K
L L
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P P
R R
T T
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Lochblech DimensionenGEWICHT:
A0
BLATT 1 VON 1MASSSTAB:1:2
ZEICHNUNGSNR.
BENENNUNG:
ÄNDERUNGZEICHNUNG NICHT SKALIEREN
WERKSTOFF:
DATUMSIGNATURNAME
ENTGRATENUND SCHARFEKANTENBRECHEN
OBERFLÄCHENGÜTE:WENN NICHT ANDERS DEFINIERT:BEMASSUNGEN SIND IN MILLIMETEROBERFLÄCHENBESCHAFFENHEIT:TOLERANZEN: LINEAR: WINKEL:
QUALITÄT
PRODUKTION
GENEHMIGT
GEPRÜFT
GEZEICHNET
min. 25 mm (1 in)
min. 25 mm (1 in)
19
Spirally welded beltAs rotary vulcanizing presses and double belt presses for continuous operation are mainly equipped with extra-wide belts, the Berndorf Band Group has developed the patended spirally welded belt. In our patented method the steel belt width of these extra-wide spirally welded belts is not gained by the so far standard method of welding several strips longitudinally. For Berndorf spirally welded belts the welding seam is arranged at a slight angle to the belt edges, and this results in a steel belt with a welding seam which follows a spiral shaped path across the entire length of the belt. Due to that fact the high tensile and bending forces are evenly absorbed over the entire cross-section of the belt. Advantages with regards to service life and tolerances are achieved by avoiding a crossing between longitudinal and cross welding seams, which is unavoidable by traditionally produced steel belts. Thanks to the precise grinding, which is achieved by our special machinery, the spirally welded seam on the belt surface becomes almost invisible. This homogeneous grinding pattern on the belt is an enormously important factor for a uniform surface appearance of the product manufactured on the steel belt.
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Steel Belts | Belt Systems | Worldwide Service
Application examples*
*Individual solutions possible on request.
Applications Key products Process Belt material Attributes
Construction & furniture panels
Particle boards,MDF,OSB,LVL
PressingCARBO 13CARBO 24NICRO 52.6NICRO 62.5
Flatness,axial straightness,strength,uniform thickness
Decorative & technical laminates
Laminates, flooringsMFC, CCL
Pressing NICRO 12.1 NICRO 52
Strength,individual textures,uniform thickness,flatness
Food Baked goods Baking CARBO 13
Uniform dark surface,optimal energy efficiency,flatness,straight tracking
Food
Meat products,fish products,dairy products,vegetables, fruits
Transporting,deep freezing,drying,cooling
NICRO 12.1 NICRO 22NICRO 31 NICRO 85NICRO 94
Hygienic,easy to clean,flatness,perfect adhesion of vee-ropes,corrosion resistant
Food Pet food Steaming NICRO 12.1 NICRO 22
Hygienic,easy to clean,corrosion resistant
Semi luxuries
Confectionery,coffee- & chocolate powder,caramel,tobacco sheets
Transporting,cooling,drying,freeze-drying
CARBO 13CARBO 32NICRO 12.1NICRO 31NICRO 52 NICRO 52.6
Hygienic,easy to clean,straight tracking,perfect adhesion of vee-ropes
Fibre- reinforced polymers
GMT,ski coating,container panels
Polymerizing, pressing
NICRO 12.1NICRO 52.6NICRO 62.5NICRO 85NICRO 94
Surface quality,uniform thickness,thermal conductivity
21
Applications Key products Process Belt material Attributes
Homogenous cast films, foils & plates
TAC,PA, PI, PC, PVA,PMMA,artificial marble, colorless polyimide film
Casting,polymerizing
NICRO 22VNICRO 31NICRO 52
High mirror polished surface,uniform thickness,flatness,corrosion resistant,perfect adhesion of vee-ropes
Rubber & plastics
Rubber andsynthetic sheets,floorings,raw rubber
Vulcanizing,laminating,cooling, transporting,shaping
NICRO 12.1NICRO 31NICRO 52.6NICRO 62.5
Surface quality,uniform thickness,flatness
Pulp & paper Paper,cardboard
Drying, shaping
NICRO 52.6NICRO 85NICRO 94
Uniform thickness,high fatigue strength,straight tracking, corrosion resistant
Fibres & woolSynthetic fibres,mineral rock wool
Pressing,washing,accumulating
NICRO 12.1NICRO 31NICRO 52.6 NICRO 62.5
Suitable perforation,high fatigue strength
Sorting lines Parcels,unit load Sorting CARBO 13
CARBO 24High operating safety,straight tracking,smooth surface
Bulky material & unit load
Limestone bricks,bricks,minerals,metal filings
Transporting CARBO 13CARBO 24
Long lifetime,hard surface
Automotive
Wind tunnel analyses,tire tests,vehicle design processes,climate testing
Testing,design,checking
NICRO 52.6
Specially developed belt coating,best operatingcharacteristics,long lifetime
Chemical raw materials
Resins,waxes,powder paint,hot melt adhesives,sulphur
Cooling,pastillating
NICRO 12.1 NICRO 22NICRO 31TITANNICRO 70NICRO 85NICRO 94
Smooth surface,perfect adhesion of vee-ropes,flatness,corrosion resistant
22
Steel Belts | Belt Systems | Worldwide Service
Material NICRO 12.1 NICRO 22
Type CrNi 17 7 CrNiMo 17 12 2
Similar material DINAISI
1.4310301
1.4401316
Tensile strength at 20 °Cat 68 °F
N/mm2
psi1,150
166,8001,100
159,500
0,2%-yield offset strength at 20 °Cat 68 °F
N/mm2
psi950
137,800970
140,700
Hardness Rockwell HRCVickers HV 10
37.0360
33.0330
Elongation 50 mm | 1.97 inch % 18 12
Welding factor 0.70 0.65
Fatigue strength under reversed bending stress*
at 20 °Cat 68 °F
N/mm2
psi480
69,600440
63,800
Modulus of elasticity
at 20 °Cat 200 °Cat 68 °Fat 392 °F
N/mm2
N/mm2
kpsikpsi
200,000180,00029,00026,100
200,000180,00029,00026,100
Density kg/dm3
lbm/in37.900.29
7.950.29
Mean coefficient of thermal expansion
20-100 °C20-200 °C20-300 °C20-400 °C68-212 °F68-392 °F68-572 °F68-752 °F
10-6m/m°C10-6m/m°C10-6m/m°C10-6m/m°C10-6in/in°F10-6in/in°F10-6in/in°F10-6in/in°F
16.017.0
--
8.99.4--
16.517.5
--
9.29.7--
Specific heat J/g°CBTU/lb°F
0.500.12
0.500.12
Thermal conductivity at 20 °Cat 68 °F
W/m°CBTU/hr ft°F
158.7
158.7
Specific electric resistance
at 20 °Cat 68 °F
Ω mm2/mΩ mil2/in°F
0.7328.74
0.7529.53
Min. permissible operating temperature
°C°F
-196-321
-196-321
Max. permissible operating temperature
°C°F
250480
250480
Tensile strength at max. permissible operating temperature
N/mm2
psi940
136,300870
126,200
0.2%-yield offset strength at max. permissible operating temperature
N/mm2
psi770
111,700770
111,700
Steel grades - pyhsical and mechanical properties. Typical values.
Special materials available upon request.
23
NICRO 22 V NICRO 31 NICRO 52 NICRO 52.6 NICRO 62.5
CrNiMo 17 12 2 CrNiTi 13 4 CrNiCuTi 15 7 CrNiCuTi 15 7 CrNiCu 15 5
1.4401316
1.4313-
--
--
--
1,130163,900
1,080156,600
1,150166,800
1,550224,800
1,450210,300
1,000145,000
1,050152,300
1,100159,500
1,500217,600
1,410204,500
33.0330
33.0330
37.0360
48.0480
46.0460
12 5 8 6 8
0.70 0.95 0.95 0.80 0.75
44063,800
48069,600
50072,500
700101,500
65094,300
200,000180,00029,00026,100
205,000-
29,700-
200,000188,00029,00027,300
200,000188,00029,00027,300
200,000-
29,000-
7.950.92
7.700.28
7.740.28
7.740.28
7.800.28
16.517.5
--
9.29.7--
10.811.211.7
-6.06.26.5-
10.911.511.7
-6.06.46.5-
10.911.511.7
-6.06.46.5-
10.810.811.3
-6.06.06.3-
0.500.12
0.460.11
0.500.12
0.500.12
0.420.10
158.7
2112.1
169.2
169.2
169.2
0.7529.53
0.6023.62
0.8031.50
0.8031.50
0.7730.31
-196-321
--
--
--
--
250480
350660
350660
350660
300570
900130,500
970140,700
900130,500
1,250181,300
1,160168,200
800116,000
930134,900
830120,400
1,180171,100
1,130163,900
*50% of the test specimens withstand 2,000,000 load cycles. If not otherwise specified, the values given apply at room temperature. Subject to change due to technological progress. Errors and omissons excepted.
24
Steel Belts | Belt Systems | Worldwide Service
Material NICRO 70 NICRO 85
Type NiCr 22 Mo 9 Nb CrNiMoN 25 7 4
Similar material DINAISI
2.4856 -
1.4410 -
Tensile strength at 20 °Cat 68 °F
N/mm2
psi870
126,2001,350
195,800
0,2%-yield offset strength at 20 °Cat 68 °F
N/mm2
psi570
82,7001,250
181,300
Hardness Rockwell HRCVickers HV 10
24.0260
39.0 380
Elongation 50 mm | 1.97 inch % 25 6
Welding factor 0.75 0.70
Fatigue strength under reversed bending stress*
at 20 °Cat 68 °F
N/mm2
psi475
68,900385
55,900
Modulus of elasticity
at 20 °Cat 200 °Cat 68 °Fat 392 °F
N/mm2
N/mm2
kpsikpsi
205,000200,00029,70029,000
200,000 186,00029,00027,000
Density kg/dm3
lbm/in38.440.30
7.800.28
Mean coefficient of thermal expansion
20-100 °C20-200 °C20-300 °C20-400 °C68-212 °F68-392 °F68-572 °F68-752 °F
10-6m/m°C10-6m/m°C10-6m/m°C10-6m/m°C10-6in/in°F10-6in/in°F10-6in/in°F10-6in/in°F
12.813.113.3
-7.17.37.4-
13.013.5 14.0
-7.27.57.8-
Specific heat J/g°CBTU/lb°F
0.410.10
0.500.12
Thermal conductivity at 20 °Cat 68 °F
W/m°CBTU/hr ft°F
9.85.7
158.7
Specific electric resistance
at 20 °Cat 68 °F
Ω mm2/mΩ mil2/in°F
1.2950.79
0.8031.50
Min. permissible operating temperature
°C°F
-196-321
-50-58
Max. permissible operating temperature
°C°F
300570
250 480
Tensile strength at max. permissible operating temperature
N/mm2
psi770
111,7001,070
155,200
0.2%-yield offset strength at max. permissible operating temperature
N/mm2
psi420
60,9001,020
147,900
Steel grades - pyhsical and mechanical properties. Typical values.
Special materials available upon request.
25
NICRO 94 CARBO 13 CARBO 24 CARBO 32 TITANIUM
CrNiMoN 22 5 3 Ck 67 - - Grade 2
1.4462-
1.1231-
--
--
3.7035-
1,400203,100
1,200174,000
1,420206,000
1,280185,600
39056,600
1,050152,300
970140,700
1,320191,500
1,220177,000
27539,900
36.0350
36.0350
44.5440
42410
-160
9.5 8 6 5 20
0.65 0.80 0.75 0.80 0.95
45065,300
45065,300
55079,800
55079,800
25036.300
200,000184,00029,00026,700
210,000-
30,500-
210,000-
30,500-
205,000-
29,700-
106,000-
15,400-
7.800.28
7.850.28
7.850.28
7.820.28
4.530.16
13.313.814.2
-7.47.77.9-
11.111.912.512.96.26.66.97.2
12.012.512.9
-6.76.97.2-
11.812.412.612.96.66.97.07.2
8.58.9--
4.74.9--
0.500.12
0.460.11
0.450.11
0.460.11
0.520.12
158.7
4626.6
4023.1
3822
2011.6
0.8031.50
0.135.12
0.207.87
0.207.87
0.7830.71
-50-58
--
--
--
--
250480
400750
250480
350660
250480
1,130163,900
850123,300
1,300188,500
1,100159,500
22532,600
990143,800
720104,400
1,100159,500
1,050152,300
13519,600
*50% of the test specimens withstand 2,000,000 load cycles. If not otherwise specified, the values given apply at room temperature. Subject to change due to technological progress. Errors and omissons excepted.
26
Steel Belts | Belt Systems | Worldwide Service
Notes:
27
07/2
020
Beijing Berndorf Technology Development China Co., Ltd.No 17, Xinggu West RD, Xinggu Economic & Development Zone, Pinggu 101200 Beijing, ChinaT: +86 108 072 390 1 E: [email protected]
Nippon Belting Co., Ltd.1-24-6, Kanda Suda-choChiyoda-ku 101-0041,Tokyo, JapanT: +81 03 3257 3050E: [email protected]
Berndorf Belt Technology USA Inc./ SBS Steel Belt Systems USA Inc.59 Prairie ParkwayGilberts, Illinois 60136, USA T: +1 847 841 330 0 E: [email protected]
Berndorf Band Latinoamerica S.A.S.Cra 46 # 62 sur 33Medellín, ColumbiaT: +57 420 405 17E: [email protected]
Berndorf Steel Belt Systems Ltd., Co.#15, Bodeum 2-roSeo-gu, 404-300 Incheon, KoreaT : +82 328 160 432 E: [email protected]
BerndorfSondermaschinenbau GmbHLeobersdorfer Strasse 262560 Berndorf, AustriaT: +43 2672 835 700E: [email protected]
ESICO B.V.Echelpoelweg 137595 KA Weerselo,The NetherlandsT : +31 541 216 630 E: [email protected]
Berndorf Band Engineering GmbH Leobersdorfer Strasse 262560 Berndorf, AustriaT: +43 2672 800 0 E: [email protected]
Berndorf Band GmbH Leobersdorfer Strasse 262560 Berndorf, AustriaT: +43 2672 800 0 E: [email protected]
www.berndorfband-group.com
Steel Belts | Belt Systems | Worldwide ServiceThe application areas for steel belts and belt systems of Berndorf Band Group are as broad and individual as your requirements. Give us the
opportunity to discuss your goals in a personal meeting. Together we will find the right solution for your requirements.
Informative topics and reports about steel belts and belt systems available on www.berndorfband-group.com
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