Hydraulic automatic bollard mainly consists of oil pump unit and steel frame construction. It uses oil pressure as dynamic to realize the rise/fall of bollard. As a moving device, it is usually installed at vehicle entrance/exit. It rises to block the vehicle and falls the ground level to authorize free passing
.Features:
A: quality hydraulic pump could be built-in or in separate control cabinet
B: steady hydraulic pressure make the operation more steady
C: could be integrated with parking barrier and all kind of access control system
D: high impact resistance make it suitable for anti-terroist use or high secutity application
Parameter:diameter: 220mm/275mm
height: 600/750/900mm
material :steel/stainless steel
operate time :10cm/sec-rise 20cm/sec-down
Impact resistance: 20,000 Joules (without damager)
hydraulic pump : build in or in separate control cabinet
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China [CN] 
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