L&L's Jupiter Series consists of manual (J) and automatic (JD) kilns. The manual kilns come with an Orton Cone Sitter/Timer, “Easy-Lift, Easy-Load” spring hinges on sizes 23-3/8” diameter and above. The automatic kilns are standard equipped with DynaTrol programing with zone control. They also come with “Easy-Life, Easy-Load” spring hinges. The Jupiter Series is designed to pull apart for loading sculpture or large objects that need to be fired.