Rammers Powered by Four-Cyle Engine The Stomper line now includes three models of rammers designed for every jobsite compaction need from narrow trenches to areas requiring optimum impact. Each rammer is powered by a four-cycle Honda engine. Engine design allows the Stompers to be laid down in any direction for easy transport and worry-free starting when standing. The line includes models XH670, XH730 and XH840 with impact forces of 2,650 lb, 3,100 lb and 3,500 lb, respectively. Stone Construction Equipment Inc.; 585/229-5141; www.stone-equip.com