V-PAC S TA C K T E M P E R AT U R E C O N T R O L S Y S T E M V-Pac U.S. Patent No. 8,863,404 B1 To meet market demand, we change mix design often. The frequent changes push our plants to the limit. ASTEC suggested we add the V-Pac stack temperature control system. We started using the V-Pac system and, without a doubt, it has improved efficiency and increased our production capability. Clarke DeHart, Production Manager, CR Jackson Inc. Operating the V-Pac Stack Temperature Control System since 2011http://www.astecinc.com http://www.astecinc.com