by Carly Lovejoy Editor,Â Mining Magazine
Excerpted From Taking the Strain
Over the past 20-30 years, the main technologicalÂ development in brakes for mine hoists has been theÂ replacement of less efficient drum brakes withÂ hydraulic disc brakes.
These offer many advantages and, along with theÂ introduction of AC motors for soft starting/stoppingÂ plus advances in control systems, brake componentsÂ have become smaller (due to reduced stresses) withÂ longer life cycles. As a result, there are significantÂ cost savings associated with brake design, installationÂ and maintenance. Read Article