14 | MATERIALS HANDLING www . newbusinessmedia . co
Successful replacement of rotary drum liners
In 2007 , a leading North American foundry had an existing rotary drum that was in need of replacement . The drum was being utilised to clean and break up sprue prior to returning to the melt department . The cast liner system in the drum had worn out , which jammed the area between the liner body and liner with sprue and tramp metal . This caused jam-ups in the process and accelerated wear on the drum body . liners were starting to wear , so the maintenance team proactively decided to replace them before they wore through . www . generalkinematics . com
View of the customer ’ s previous rotary drum .
Solution Looking for an easier-to-maintain solution , the foundry ’ s maintenance and engineering team met with General Kinematics to discuss the Ducta-Series rotary drum liner . The customer wanted easy to maintain liner sections and to avoid having to patch and replace the drum body in the future . General Kinematics engineered and installed a Ducta-Sprue rotary sprue mill , which utilised GK ’ s heavy-duty bolt in drum liner system , as well as a vibratory sand return conveyor . The combination of these two technologies addressed the maintenance concerns the customer experienced with its previous rotary machine . In 2015 , the maintenance team at the foundry contacted General Kinematics to order its first set of liners . The original
Loose and worn panels .
Worn liner sections .
Jammed sprue under the liner .
T he General Kinematics Ducta-Sprue rotary sprue mill .
Cast Metal & Diecasting Times July / August 2016