Dragline Rigging Repairs -1

Posted by Chris Padman on 2 October 2020
Dragline Rigging Repairs -1
Socket Repairs  Visible indicators
Wear in bore and surrounding area Mushrooming in bushes
Deformation and loss of material in rope groove Risk Accelerated wear in mating components Accelerated rope wear Catastrophic failure   ...
Posted in:Mining FAQ  

Case Study - Rope Shovel Trip Mechanism

Posted by Chris Padman on 14 September 2020
Case Study - Rope Shovel Trip Mechanism
P&H 4100XPC Queensland Coal  A Queensland Coal Mine operates electric rope shovels, these machines suffered frequent production losses to dipper trip mechanism failure.  This had the effect of shutting down the shovels themselves and standing down of the haul truck fleets.  Revised and optimised system components, along with improved alignment overcame the problem.  Challenge
A Queensland Coal mine operated Komatsu P&H 4100XPB/C rope shovels in overburden cle...
Posted in:Mining FAQ  

Case Study: Wearite Greaseless Excavator Bushes

Posted on 31 August 2020
Case Study: Wearite Greaseless Excavator Bushes
A NSW Coal Mine operating heavy excavators was suffering down-time due to failure of lubrication lines.  Wearite bushes were fitted to these machines, achieving 10,000hr life and reducing machine down-time.  Industry: Coal Mining                   Product: Wearite Blue Excavator Bushes Challenge A NSW Coal mine operated Hitachi EX3600 and EX5600 excavators as their principal digging equipment.  These machines had for yea...
Posted in:WEARITEMining  

FAQ - Time lost due to lubrication failure in excavators

Posted by Chris Padman on 23 July 2020
FAQ - Time lost due to lubrication failure in excavators
  A. Polymer bushes such as Wearite can replace lubricated steel bushes in many parts of the excavator mechanism.  These materials are rated to the duty of heavy mining applications and can operate without lubrication.  Wearite users have been able to reduce the number of vulnerable lubrication lines and thus reduce downtime associated with failures in these lines.  Experience in excavators in the 300 tonne + class has shown a trouble-free life over.  Savings are ...
Posted in:WEARITEZEMEK NewsMiningMining FAQ  

FAQ - How can I improve the life of shovel dipper door trip mechanism components and ropes?

Posted by Chris Padman on 2 June 2020
A -  Zemek have observed these steps can provide improvements to the life of components and ropes -  Correct alignment of system mechanism. Use of engineering polymer guide components limits wear to mating components. Low friction components reduce load and wear on ropes particularly. Revised trip sheave design shown to extend rope life. More information Contact us for more information and get more mileage from your mining equi...
Posted in:ZEMEK NewsMiningMining FAQ  

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ZEMEK's upgrade has been a major success story with improved door latching, greatly reduced latch shimming downtime and significant reduction in maintenance.

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