| The global leader in high-performance conveyor components has introduced a new standard in wear liner technology. The Manufactured Canoe Liner from Martin Engineering is made from durable urethane molded 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, premature equipment replacement and extra labor to monitor and maintain.
Each section has a series of 2 inch (51 mm) long bracket holes for vertical adjustment. The bottom “belt side” of the liner is cut to an optional 20º, 35º, or 45º angle to maximize belt sealing and protect the softer material of the skirt seal from premature wear. Depending on the weight and abrasiveness of the conveyed material, customers can choose a urethane thickness of 1.3-2 inches (33-51 mm). Delivered in storable sections 48 inches (1219 mm) in length, the units can be cut on site to match the needs of the chute. The sections can also be installed vertically on top of one another to accommodate taller chute walls or raised enclosures. Like the lower liner pieces, the upper units can be adjusted as well.
“Martin is constantly seeking to innovate every aspect of the bulk handling process with the goal of making it safer, more effective and easier to maintain,” said Mueller. “The introduction of the Manufactured Canoe Liner achieves our objectives by improving efficiency and lowering the cost of operation.”
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Martin Engineering was founded in 1944 by Edwin F. Peterson, a foundry pattern maker in a small Illinois town. The initial idea for the company’s inception came as he watched co-workers struggle to overcome sand blockages on the foundry’s mold-making machines by pounding on the hoppers with hammers. He was troubled by the safety risks, equipment damage and loss of productivity that resulted. Those concerns prompted him to design the Vibrolator® Industrial Vibrator, which uses the rotation of a single steel ball in a hardened steel raceway, propelled by compressed air. Patented in 1949, it was the first of the innovative products introduced by Martin Engineering to solve problems in bulk materials handling, and remains today as one of the world’s most accepted vibrators to facilitate the movement of bulk solids. From its beginning, the firm has been a family-owned, privately-held company.
