Counter balance stacker

A stacker, also commonly known as a pallet stacker or electric stacker, is a piece of material handling equipment designed to lift, transport, and stack heavy loads – particularly pallets – within a warehouse, distribution centre, or retail space.A counterbalance, or load-holding, valve is a mechanism typically located near the actuator that uses hydraulic pressure to keep a load from moving. Generally, these valves have three related functions: support, control and safety.