Haul Truck Bumpers

KEC is the custodian for the haul truck bumper that was designed by the then Anglo-American Technical Solutions. These bumpers are used at Thungela on various haul trucks to mitigate the risk around collisions between haul trucks and LDVs. KEC was also involved in the review and some development surrounding the dove tail bumpers used at Kumba Iron Ore.

  • HTP1
  • HTP2
  • HTP3
  • HTP4
  • HTCF1
  • HTCF2
  • HTCF4
  • HTCF3

Haul Truck Chassis Failure

KEC was involved in the investigation into the failure of a haul truck chassis with an OEM. The process involved onsite testing to determine operational stress and calculate the equivalent fatigue life based on operational data. The chassis design was updated to reduce risk of chassis failure. This was a combined effort with OEM support.

Tyre Pyrolysis

Experience relating to the occurrence of tyre pyrolysis and the explosion of tyres. These are the results of a test that was done at Anglo Technical Solutions and work presented internationally to mitigate the risk surrounding the occurrence of tire pyrolysis explosions.

  • TP1
  • TP2
  • HTC1
  • HTC2
  • HTC3

Horizontal Tyre Cages

KEC was contracted to design a horizontal tyre cage for use during the inflation of haul truck tires. Analysis was performed to understand the structural integrity of the cage to contain the possibility of lockring failure and ejection of rim components. The results of the analysis were used as input to size the cage. The cage was manufactured and is currently used in a tyre bay.

Vertical Tyre Cages

KEC was contracted to design a vertical tyre cage for use during the inflation of haul truck tires. Analysis was performed to understand the structural integrity of the cage to contain the possibility of lockring failure and ejection of rim components. The results of the analysis were used as input to size the cage. The cage was manufactured and is currently used in a tyre bay.

  • VTC1
  • VTC2
  • VTC3
  • CMC1
  • CMC3
  • CMC2
  • CMC4

Continuous Miner – Cutter Motor Cover

New Cutter Motor Cover on Komatsu CM was designed based on input from Zibulo. The cover replaced the old cast iron cover that had a mass of 35 kg. The new complete cover mass is 13 kg with the removable cover weighing 6.9 kg. The seal configuration is improved, which has greatly improved maintainability of the cutter motor and improvement the cutter motor life. Zibulo test in 2017 indicates a factor of 3 to 4 times increase in life of the motor - directly related to the use of the new covers.