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AF450 Accelerated Weight Drop Source: <br />The accelerated weight drop (AWD) system is a vehicle- mounted, gas- charged accelerated weight <br />drop (impact hammer) energy source. A large hardened -steel hammer of 458 pounds is used to <br />impact a ground - coupled base plate. The AWD uses nitrogen as the accelerating force for the <br />hammer mass. <br />UNITED SERVICE ALLIANCE IS PLEASED TO ANNOUNCE THE RE- <br />LEASE OF A NEW FAMILY OF AUTOFIRE HAMMERS! ALL UNITS <br />FEATURE IMPROVED COCKING GEOMETRY, UPGRADED NITROGEN <br />SPRINGS, ENCLOSED LATCHING MECHANISMS, AND ENCLOSED <br />HAMMERS FOR OPTIMUM SAFETY, RELIABILITY, AND PERFORM- <br />ANCE! <br />htta: / /www. bing.com/ images/ search ?g = Accelerated +Weight+ Drop+ United +Service +Alliance %2c +Inc.& view = detail &id= B407990978C5CO482EC4F4 <br />34BDF7FBCB09FFED01 &first =1 <br />United Service Alliance, Inc., 5245 Emmett F. Lowry Expressway, Texas City, TX 77591 <br />Specifications' <br />Features / Notes <br />Model <br />AF450 <br />Autofire, P wave <br />Assembly weight <br />1825 Ibs (828 kg) <br />Overall height <br />92 in (234 cm) <br />Hammer weight <br />458 Ibs (208 kg) <br />Flight distance <br />16.50 in (42 cm) <br />Fully enclosed <br />Nitrogen spring <br />Single <br />Serviceable <br />Nitrogen pressure <br />range <br />500 -2000 psi <br />(34.5 -138 bar) <br />Regulated, adjustable <br />htta: / /www. bing.com/ images/ search ?g = Accelerated +Weight+ Drop+ United +Service +Alliance %2c +Inc.& view = detail &id= B407990978C5CO482EC4F4 <br />34BDF7FBCB09FFED01 &first =1 <br />United Service Alliance, Inc., 5245 Emmett F. Lowry Expressway, Texas City, TX 77591 <br />