The 2 stage pneumatic bollard, PA219/275-535SS, is a unique 2 stage automatic bollard designed for installations where automatic bollards are required but the embedment depth does not allow for conventional automatic bollards.
With an installation depth of only 17 inches (431mm) the PA219/275-535SS automatic bollard is the shallowest automatic embedded bollard available.
Bollard Diameter: 1st stage 275mm (11″), 2nd stage 220mm (8.6″)
Wall Thickness: 6mm (1/4″)
Height extended: 535mm (21″)
Depth Below Grade: 431mm (17″)
Driving Mode: Pneumatic
Rising Speed: <20cm/s, 8in/s
Lowering Speed: <20cm/s, 8in/s
Power Source: AC 220V air pump (AC 110V optional)
Bollard Material: 316 Stainless Steel
Surface Treatment: Polished
Working Frequency: > 2,000 cycles per day
Operating Temperature: -5 – 70℃，23 – 160F heating system is optional