Pit & Quarry, October 2013

Conveying Material Handling New compound makes pulley tougher more durable Baldor Electric Co s Dodge D LAG conveyor pulleys utilize a natural rubber compound that is 73 percent more resistant to wear than standard styrene butadiene rubber the company says The lagging is 100 percent vulcanized for pulley bonding and strength making it resistant to cuts and gouges Two pulley styles are available D LAG heavy duty drum pulleys from 10 in to 24 in in diameter and D LAG MDX mine duty drum pulleys from 12 in to 24 in in diameter Baldors Dodge heavy duty pulleys are designed with flexible end discs to eliminate weld fatigue under cyclical loads while Dodge MDX pulleys feature an integral hub design that eliminates the welded hub www baldor com Cradle reduces roller frame damage Martin Engineerings high speed impact cradle is designed to reduce roller and frame damage from heavy conveyor loading conditions The companys EVO high speed impact cradle is specifically engineered to withstand brutal operating conditions reducing roller failures and service requirements Martin Engineering says The cradles use the companys Trac mount technology to easily slide in and out for maintenance The modular components are light enough to be removed by hand without using a crane or other equipment to handle them The load zone design uses an elastomer bar suspension system that absorbs and distributes the material load being transferred reducing the stress components and support structure www martin eng com Clamps provide a positive even pressure SureGrip conveyor belt clamps offer belt clamping for all types of conveyor belt maintenance and for a variety of working conditions According to ASGCO the belt clamps provide a positive even pressure across the entire width of the conveyor belt and do not require the belt to be tensioned in order to apply pressure to the clamps The company says the belt clamps are constructed from high grade steel components that are lightweight making them easy to transport and assemble www asgco com Groundline conveyor setup takedown possible in about two hours Superior Industries Trailblazer conveyor can be set up or taken down in as few as two hours It includes 500 ft of fully belted and assembled groundline style conveyor that folds up in a unique accordion style to allow for simpler transportation It is transported on an attached 84 ft trailer Providing this kind of length in a one load towable package makes installation as easy as determining a starting point and marking the destination the company says Once marked the truck driver moves forward and a crew of two to four unloads the conveyor The crew inserts the supports as the conveyor takes shape sets take ups and attaches the conveyors hopper For added productivity the hopper can be placed at any location along the conveyor Standard belt sizes are 36 or 42 in wide by 500 ft long Capacity limits range from 1000 short tph to 1200 short tph of 100 lbs per cu ft density material with a belt speed of up to 400 ft per minute www superior ind com 40 PIT QUARRY October 2013