RUD chains for tyres in harsh environments
RUD reports success for its Fels Crown X22 chains in the harsh working environment at Xstrata’s Mangoola mine in the Hunter Valley.
RUD chains on the L-1850
The mine’s LeTourneau L-1850 loader has worked over 9,000 hours without reporting any unscheduled workshop visits for tyre repairs or replacements, RUD reports.
Tyre punctures are obviously unwelcome. The L-1850 is the only wheeled loader on site and is integral to production. Giant earthmover tyres are in short supply and are expensive to replace.
Mangoola’s three 9-10m coal seams are inter-bedded with 3-4m thick, late-Permian, tuffaceous bands concealed by 15-90m of sandstone conglomerate.
Tuff is an unforgiving mixture of volcanic rock and mineral fragments in a volcanic ash matrix formed when a combination of ash, rock and pyroclastic or tephra mineral fragments were blasted into the air by volcanic action then fell to the ground as a mixed deposit.
RUD said the L-1850 loader’s Michelin X-Mine D2 60/80-57 tyres are subject to heavy abrasion from the sandstone and tuff. The tyres also come under threat of sidewall damage from unpredictable content such as razor-sharp, unweathered shards of rock.
The Fels Crown chains are robust, tight-meshed, 22m, ribbed links that encase the tyre, absorbing abrasion and preventing the tread from powdering, RUD said. The chains also deflect sharp rock fragments, preventing sudden-death, side-wall penetration.
The Fels Crown chains were supplied, installed and supported by RUD Australia and manufactured by RUD Kettenfrabrik of Germany.