Fully retractable, heavy duty, automatic bollard consisting of an oil-hydraulic motor-pump unit incorporated inside the main structure and an oil-hydraulic actuator inside the moving cylinder. Suitable to meet residential, commercial and industrial requirements and urban applications. IP 67. Height from ground level can be 500, 600, 700 or 800 mm. Scratch-proof S235JRH steel moving cylinder, thickness 4 mm and ø 275 mm, cataphoresis treated and polyester powder coated, AISI 304 or AISI 316 brushed stainless steel options available. Cylinder head made of aluminium fitted with rubber edge and 12 amber-colour integrated LED lights. Cathaphoresis treated aluminium cover plate. Head and cover plate are slip-proof and tread resistant. Moving cylinder fitted with an approved retro-reflecting, high intensity micro-prismatic adhesive film (h 80 mm). Hot-dip galvanized steel pit. Access to the hydraulic release device for emergency manual lowering of the bollard by a special spanner with a triangular socket. Impact resistance 52.000 J [HRC: 70.000 J], breakout resistance 320.000 J [HRC: 420.000 J], static load max 1.500 kg (bollard in raised position), max 20.000 kg (in lowered position). Working temperature -40 ÷ +80 °C. Supply voltage 230 Vac ± 10%, 50 Hz. Absorbed power 1.100 W. Rising time ~ 2,14 s [h 500 mm from ground level], ~ 2,57 s [h 600 mm from ground level], ~ 3,0 s [h 700 mm from ground level], ~ 3,42 s [h 800 mm from ground level]. Intensive use 2.000 cycles/a day.