The need to balance maneuverability and power is what inspired the design of the E20 and E21 Series of die handler trucks, the direct predecessors of the E30 and E31 lines. Although not as small as their descendents, thes......The need to balance maneuverability and power is what inspired the design of the E20 and E21 Series of die handler trucks, the direct predecessors of the E30 and E31 lines. Although not as small as their descendents, these trucks introduced many of the most popular features that would characterize later Elwell-Parker die handling equipment, such as a rear battery or generator located behind the operator and multiple control stations located on the sides of the vehicle.
