Telsmith, an Astec company, will introduce its new track-mounted Quarry-Trax TJ3258 primary jaw crusher with larger gape and a 58-inch-wide crushing chamber at Conexpo-Con/Agg 2008. The manufacturer claims its larger size will boost crushing capacity by up to 15 percent. In the automatic mode, the crusher feed is maximized by monitoring engine load, crusher load and feed bin level in order to maintain a consistent choke feed.