SZA251CDA SMART ZONE® is a heavy duty roll-to-roll chain driven zero pressure accumulator, designed to safely accumulate heavy products such as castings, drums, containers and heavy pallet loads in 5′ zones. The Roach design incorporates photo electric sensors, instead of sensor rollers, which eliminates many of the problems associated with conveying wooden pallets. Products do not touch during accumulation and are singulated individually off of the conveyor. SMART ZONE® is easy to install and simple to maintain.