Conveyor Model

Cable Hauled Conveyor Model

Components Brochure

Noise & Vibration Isolators

Main Sources of Noise

  • Sound radiated from the reverberant acoustic volume contained within the corrugated shell cover.
  • Sound radiated directly from the various mechanical impact processes that can occur. For example the meshing of the pulleys and cable that supports the belt (repetitive impacts) and the various joints / linkages between rocker arms, cross shafts, line stands etc.
  • Sound radiated from the vibrating corrugated iron shell cover which has a very large surface area.

For structural vibrations to radiate sound, the frequencies of the vibration correspond with the frequencies of the sound being radiated. For the overland Cable Hauled Conveyor, the dominant frequencies of sound radiation are from 100 Hz to 3000 Hz.

Model of a typical Cable Hauled Conveyor

Cable Hauled Conveyor

Patented Anti-Noise and Vibration Componentry

Rocker Arm assembly details

Rocker Arm assembly


  • Reduces noise levels and eliminates costly replacement of mechanical equipment.
  • The impact of the cables on the pulleys is dampened, resulting in extended life to pulley tyres, reducing the frequency of replacement.
  • Not only is noise reduced to well below environmental acceptance levels but the life of the system is greatly extended, in particular that of the pulleys.

Rocker Arm details

Rocker Arm

Noise & Vibration componentry in operation

  • Measurements conducted on a conveyor reveal that the installation of Polyurethane anti-noise and vibration componentry reduce vibration levels by about 50% in the 125 Hz octave level and about 20-30% overall.

Complete Rocker Assembly fitted with noise and vibration componentry

Rocker Arm assembly

List of sites currently using JLV’s Anti-Noise & Vibration Isolators

  • Worsley Alumina Pty Ltd, WA
  • Coal & Allied - Hunter Valley, NSW
  • Mt. Isa Mines, Mt. Isa, QLD