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INSTALLATION  

STEEL CORD CONVEYOR BELT SPLICE CONFIGURATIONS

You may notice that the diagrams show rectangular splices.
Today, high class splices do not need a bias cut anymore.
However, if your mobile vulcanizing press has an oblique design, you can still apply the bias shape.

 

   No steel cord is connected to another.
1-Step-Splice

One-step splice

(up to St 2000)

2-Step-Splice

Two-step splice

(St 2500 to St 3150)

3-Step-Splice

Three-step splice

(St 3500 to St 4500)

4-Step-Splice

Four-step splice

(St 5000 to St 7500)

5-Step-Splice

Five-step splice

(St 7800)


Splice dimensions as per DIN 22131
 
St 1000
St 1250
St 1600
St 2000
St 2500
St 3150
St 3500
St 4000
St 4500
St 5000
Minimum step length (mm)
300
350
450
400
500
650
650
750
800
900
Splice length (mm)
600
650
750
1150
1350
1650
2350
2650
2800
4050

The ISO standard 15236/4 additionally describes simple splice patterns called

Organ Pipe Splice
Organ Pipe Splice
Fir Tree SpliceFir Tree Splice
Finger SpliceFinger Splice

Such designs should be used for lower utilized conveyor belts with high safety factors only.
For dimensioning of the conveyor belt strength, the reduced splice strength must be considered! 

The design of the optimum splice is a complex task. The cord diameter, the pitch, the butt end clearances, the bend zones, the belt edges and the shear stress properties of the core rubber and other parameters have to be considered.

All sketches are not to scale!

 
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