A modern cable-belt conveyor separates the carrying belt from two ropes that support and drive it. The animation shows a straight carrying and return section with edge shoes, ropes and grooved line pulleys. The calculator compares entered rope tension with minimum breaking load and displays an enlarged tracking-offset example.
Cable Conveyer Interactive Calculator
Compare per-rope tension with minimum breaking load and inspect a lateral-offset example. The fixed 12%, 18% and 25 mm references provide arithmetic comparisons only; they are not manufacturer-approved limits.
Equation Used
- Tension and minimum breaking load refer to one rope, using the same force units.
- The 12% and 18% values are fixed comparison percentages only, not recommended operating bands.
- 25 mm is an example reference for showing offset arithmetic; a negative result is not by itself a diagnosed tracking failure.
- The view is a cropped straight section. Return loops, end drives and tensioners are outside it. Speed is illustrative and no load rating is inferred.
The tension ratio compares the load on one rope with its minimum breaking load. The 12%, 18% and 25 mm values are illustrative references, not operating limits or pass/fail thresholds.
The interactive animation above shows the cable-belt conveyor’s carrying and return runs, with an enlarged tracking-offset view.
How the modern cable-belt arrangement works
In the manufacturer’s construction, a pre-troughed belt has grooved edge shoes that ride on two steel ropes. Grooved line pulleys support and guide those ropes on fixed stands. The ropes transmit drive while the belt carries material.
The illustration separates those components and shows the carrying and return runs. It is a short section, so the end drives and turnaround paths are outside the view. The direction markers illustrate motion only, not measured speed or flow capacity.
This page shows a modern rope-supported carrying belt. A disc-on-cable trough conveyor uses a different arrangement, in which discs attached to a cable move material through a trough.
Understanding a rope-supported carrying belt
The diagram helps identify the belt, its edge support, the moving ropes and the stationary pulley stands. The linked manufacturer reference documents the construction used in cable-belt conveying.
This calculator can compare an entered tension with the stated breaking load of one rope. It does not determine whether the conveying system or a replacement rope is suitable for a specific installation.
What the numerical comparisons mean
Tension ratio is 100 times the entered rope tension divided by the entered minimum breaking load. The two other force results are simply 12% and 18% of that breaking load. Those percentages are example references and are not endorsed design or operating limits.
The tracking comparison subtracts entered lateral offset from a fixed 25 mm reference. The inset enlarges the offset so it is visible. A value above or below that reference does not establish acceptable tracking without the actual shoe, rope and support geometry.
The model has no catenary, drive-traction, fatigue or dynamic-load analysis.
Try the reference comparison
At 400 kN tension and 2,400 kN minimum breaking load, the ratio is 16.67%. The fixed 12% and 18% references are 288 kN and 432 kN.
An offset of 25 mm makes the 25 mm comparison zero. At 50 mm offset it is −25 mm. These are arithmetic results, not operating verdicts. Change tension or breaking load to see the ratio update, and change offset to move the inset.
Scope of the conveyor illustration
Separating belt and ropes makes the support and drive arrangement easier to see. This drawing uses illustrative proportions and omits terminal equipment, protective covers and details specific to a particular conveyor.
Tension limits, rope selection, tracking allowances and maintenance requirements depend on the actual system. The fixed references in this tool cannot replace that information.
Questions about the cable-belt calculator
Is 12% to 18% MBL a recommended operating band?
No. Those values are example percentages, not universal operating limits.
Does a zero tracking comparison mean the belt is aligned?
No. Zero means the entered offset equals the example reference of 25 mm. Geometric alignment would correspond to zero offset.
Why is tracking shown in a separate inset?
The inset enlarges the lateral shift without distorting the main conveyor construction.
Where are the drive and return loops?
They are outside this cropped straight section. The illustration is not a complete installation drawing.
Construction reference
Metso cable-belt conveyors: manufacturer description and exploded illustration of grooved belt shoes, steel ropes and supporting line pulleys. The calculator’s fixed comparison percentages and offset reference are not manufacturer limits.
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