230v AC hydraulic bollard for very intensive use. Its size and technical characteristics make it particularly suitable, thanks to the special SD(security) version that keeps the shaft raised in the event of a power failure, for installations to protect sensitive places (ministries, barracks, airports, access to buildings of particular importance, etc.). The standard version, on the other hand, is suitable for public installations where the shaft must lower spontaneously, freeing the passage in the event of a power failure. Designed and built with the aim of simplifying maintenance thanks to the hydraulic pump located under the flange. PERSEO CBD control unit with menu programming on the display, automatic routine servicing warning, simultaneous management of up to 4 bollards, integrated receiver and integrated heating element and incorporated receiver.