The Test was conducted on the Thwaites Proving Ground in November 2019.
The test was initiated with the objective of understanding the structural integrity of the cabs fitted to Thwaites dumpers, if impacted during the loading procedure by an ecavator.
The machine used was a standard 14 Tonne machine with a fully extended boom, slewing a loaded bucket at full speed. The ground conditions were wet, with the environment being created being congruous with those found on site.
The cab fitted was compliant to ROPS & FOPS ISO & ISO 3449.
Conducted by Thwaites Enginnering Manager Bob McElvogue the test was divided into two sections.
Test 1 : Testing the structural integrity by striking the cab at the A pillar.
Test 2 : Testing the fully finished cab by striking the cab at the front via a screen guard.
Findings of Test 1:
No failures were observed on inspection, the energy of impact was absorbed through the cab structure.
Findings of Test 2 :
No failures were observed or reported on inspection. The screen guard performed well in absorbing the initial impact with the force being distributed through the cab frame.
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