Getting better at taking the edge off

摘要

With track time almost always at a premium, railroads' expectations for nearly any type of maintenance-of-way equipment remains the same: fast machines that get the job done as efficiently as possible. During the past several years, grinding equipment suppliers have fine-tuned their equipment to meet railroads' need for speed. Average speeds of production grinders between 2005 and 2011 have increased from about 6 mph to 7 mph to 9.5 mph or 10.5 mph, says Dereck Bartz, product manager-rail grinding for Harsco Rail.