Data and facts concerning steel belts · 2020-07-08 · 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

Continuous reliabilityData and facts concerning steel belts

2

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.

3

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

4


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

24

24

23

23

22

22

21

21

20

20

19

19

18

18

17

17

16

16

15

15

14

14

13

13

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

5

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)

6


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

24

24

23

23

22

22

21

21

20

20

19

19

18

18

17

17

16

16

15

15

14

14

13

13

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

polygonzugGEWICHT:

A0


ZEICHNUNGSNR.

BENENNUNG:


WERKSTOFF:

DATUMSIGNATURNAME



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

7

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

8


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

9

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

10


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.

11

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.

12


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.

13

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.

14


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

15

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.

16


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

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

24

24

23

23

22

22

21

21

20

20

19

19

18

18

17

17

16

16

15

15

14

14

13

13

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

SSPLGEWICHT:

A0


ZEICHNUNGSNR.

BENENNUNG:


WERKSTOFF:

DATUMSIGNATURNAME



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

F F

G G

H H

J J

K K

L L

M M

N N

P P

R R

T T

24

24

23

23

22

22

21

21

20

20

19

19

18

18

17

17

16

16

15

15

14

14

13

13

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

SSPLGEWICHT:

A0


ZEICHNUNGSNR.

BENENNUNG:


WERKSTOFF:

DATUMSIGNATURNAME



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

E E

F F

G G

H H

J J

K K

L L

M M

N N

P P

R R

T T

24

24

23

23

22

22

21

21

20

20

19

19

18

18

17

17

16

16

15

15

14

14

13

13

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

SPL EU-USAGEWICHT:

A0


ZEICHNUNGSNR.

BENENNUNG:


WERKSTOFF:

DATUMSIGNATURNAME



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

F F

G G

H H

J J

K K

L L

M M

N N

P P

R R

T T

24

24

23

23

22

22

21

21

20

20

19

19

18

18

17

17

16

16

15

15

14

14

13

13

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

SPL EU-USAGEWICHT:

A0


ZEICHNUNGSNR.

BENENNUNG:


WERKSTOFF:

DATUMSIGNATURNAME



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

24

24

23

23

22

22

21

21

20

20

19

19

18

18

17

17

16

16

15

15

14

14

13

13

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

SSPLGEWICHT:

A0


ZEICHNUNGSNR.

BENENNUNG:


WERKSTOFF:

DATUMSIGNATURNAME



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


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

G G

H H

J J

K K

L L

M M

N N

P P

R R

T T

24

24

23

23

22

22

21

21

20

20

19

19

18

18

17

17

16

16

15

15

14

14

13

13

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

MaßeGEWICHT:

A0


ZEICHNUNGSNR.

BENENNUNG:


WERKSTOFF:

DATUMSIGNATURNAME



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%



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

M M

N N

P P

R R

T T

24

24

23

23

22

22

21

21

20

20

19

19

18

18

17

17

16

16

15

15

14

14

13

13

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

Lochblech DimensionenGEWICHT:

A0


ZEICHNUNGSNR.

BENENNUNG:


WERKSTOFF:

DATUMSIGNATURNAME



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.

20


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


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


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


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

EN

Documents

Data and facts concerning steel belts · 2020-07-08 · 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