MATERIALS HANDLING
CONVEYOR WEAR LINER THAT’S EXPERTLY ENGINEERED T
he new Manufactured Canoe Liner from Martin Engineering is
made from durable urethane moulded around a rugged steel plate to absorb impact and abrasion from the punishing bulk handling environment. With the protective plate integrated directly into the urethane liner, the design delivers superior shielding of the skirt sealing system and chute wall from heavy, fast- moving cargo. The result is extended equipment life, longer periods of dust and spillage control, improved safety and less maintenance, reducing the overall cost of operation. Previously, most wear liners were sheets of steel welded onto the internal chute wall of the conveyor loading zone. These protected the wall from the punishing effects of splashing, shifting and abrasive material. But since they are wear parts, periodic replacement of these early
designs involved enclosed chute entry and hot work using a blow torch, which required certification and supervision, while running the risk of igniting explosive dust. The steel plates generally did not effectively protect the rubber skirt seal, leading to more frequent skirt replacements. Moreover, the wear liner’s position often left a gap between the liner and the skirting, which captured small lumps of material that could damage the belt. These design issues resulted in excessive downtime and premature equipment replacement.
DURABLE DRIVES FOR BELT CONVEYOR SYSTEMS W
ith high thermal limit powers, Maxxdrive XT industrial gear units have been optimised for
bulk logistics applications such as belt conveyor systems. With regard to the requirements
for conveyor technology drives in the bulk goods and mineral industries,
Nord Drivesystems specially developed the Maxxdrive XT industrial gear unit. It provides output torques of 15 to 75kNm with speed ratios from 6.3 to 22.4 and is offered in seven sizes for powers from 22 to 2,100 kW. The power and speed ranges of
the two-stage right-angle gear unit have been specially designed for industries in which low speed ranges are required in combination with high powers – such as the bulk goods and mineral industries. Its robust design makes the Maxxdrive XT resistant to dirt and reliable in rough operating conditions. A special sealing concept reduces maintenance. Large
roller bearings and centre distances increase the load capacity and service life of the components. As standard, the industrial gear unit is equipped with a heavily ribbed Uunicase housing and an integrated axial fan. Due to the increased surface and the airflow covers, the cooling airflow is optimised and a very high thermal limiting power is achieved. In many cases, additional cooling is not required. “As with other application areas,
our drive solutions for the industry are individually configured for customers according to the modular principle,” comments Jörg Niermann at Nord Drivesystems.
For more information visit
www.nord.com
www.engineerlive.com 49
The Manufactured Canoe Liner is an engineered urethane strip moulded directly around a protective steel plate. This avoids the bonding issues common to previous designs, preventing urethane separation from the plate that could damage the belt and enclosure. Each section has a series of 2in long bracket holes for vertical adjustment. The bottom “belt side” of the liner is cut to an optional 20º, 35º, or 45º angle to maximise belt sealing and protect the softer material of the skirt seal from premature wear. As material gradually erodes the
Manufactured Canoe Liner, the bottom trough angle continues to protect the skirting. If there are significant gaps between the belt and liner, each cartridge can be adjusted by a single technician using a socket wrench.
For more information visit
www.martin-eng.com
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