Rock Products

SEP 2018

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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46 • ROCK products • September 2018 EQUIPMENT & TECHNOLOGY MAINTENANCE & WEAR PARTS "Urethane with embedded ceramics can be optimized to resist not only sliding abrasion, but also impact, or various combinations of the two," said Roberge. "This approach can last up to 10 times longer than steel or rubber alone, and up to four times longer than urethane alone." To resist liner degradation in hot, humid climates and further extend liner life, he also advises the use of an ether urethane formulation, instead of a typical ester formulation. Noise Levels Roberge points to another benefit of the urethane. Compared to steel liners, the urethane significantly reduces the noise level. "When all this rock and aggregate falls onto metal, it can be quite loud, particularly if it is in an enclosed building," he said. "Because the urethane has natural resilience, it deadens the sound quite a bit and makes conversation easier." Cutting and self-installation of the wear liners can be done. Standard sheet sizes are 4- x 8-ft., 4- x 10-ft., 5- x 8-ft., and 5- x 10-ft., in thicknesses from 3/16- to 1-in. Rolls are also available in 4- x 25-ft. up to 5- x 100-ft. The material can be installed/fastened using a weld-in or bolt in technique. Modular panels, in urethane and urethane with embedded tiles, are also available in 12- x 12-ft. and 12- x 18-ft. sizes in a variety of thicknesses. These can be quickly welded or bolted in to manage certain common "hot spot" repairs, such as in screen feeders and discharge lips. Custom liners, however, are commonly used by the customers of bulk material handling plant equipment, and anywhere that standard sheets do not fit, where size and weight are a concern, or where a long-term wear solution is needed. Eliminates Waste "When custom liners are cut to an exact size or pre-molded to fit right into the equipment, it eliminates wasted material and the need to cut and trim onsite," said Roberge. "Because such pieces are manufactured to fit precisely together, they install quickly with minimal production downtime. They are also easy to replace a piece at a time as needed." The process for customizing liners is quite simple for plant managers and the OEMs that manufacture such equipment. According to Roberge, the customer typically provides a sketch, drawing or photo of the bulk handling equipment to be lined, along with dimensions and notes. The wear liner producer then finishes the drawings and provides a quote. If the customer approves, the liner is completed, shipped and is ready for installation when received. Whether used as standard or custom liners, urethane's extreme wear resistance can offer plant operators, design engineers and equipment manufacturers extended equip- ment life and trouble-free handling of bulk aggregate and sand materials. This improves safety, production and the bottom line. Argonics Inc.,

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