TRAFFIC BOLLARDS

OVERVIEW:
This is our recommendation for an
alternative rising bollard, which is not
protecting areas of vital importance but is
primarily used as a traffic control measure,
although the bollard itself is of
substantial construction and intimidating.
This bollard has not been tested, but
because of its construction will withstand
minor vehicle impact - 60KJ.

USE:
Traffic bollards, as the name implies, are used for the control of vehicles, a typical use being street closure for pedestrian precincts, as well as other commercial and industrial uses. An example would be airside/landside control at airports , loading bays in distribution centres.

SIZE:
The bollard height is 700mm above ground and the core diameter 276mm. Overall diameter in stainless steel finish 300mm and in polyurethane finish 328mm. The base unit is 1.1m deep below finished ground level. The bollard should be set at a maximum of 1.5m centres, although for this type of product this dimension is discretionary.

CONSTRUCTION:
The circular bollard is raised and lowered hydraulically with the ram being inside the bollard. The bollards retract into a below ground casing and link to the hydraulic drive unit which is remotely located above ground in a lockable steel cabinet. Bollards capable of resisting 100KN axle loading when lowered.

FINISH:
Steel core with stainless steel shroud. Alternatively black polyurethane sleeve. All other exposed steel surfaces hot dipped galvanised.

DRIVE:
Each individual bollard has its own drive unit housed in freestanding cabinet to ensure each bollard operates at the same speed. Drive is electro-hydraulic with high pressure pump, electric motor, and all necessary valves. Each drive unit has release valve for emergency lowering and hand operated lever for raising in event of power failure. Drive unit can also include if required oil accumulators for operation without power, the size depending on the number of operations required. Speed of operation average 6.5 seconds up and down. Operating temperature range -15 to +40. For cold environments additional heating is required and available.

POWER SUPPLY:
Three phase 240/415v 1.5kw minimum. Steel wire armoured cables, the number of course depending on control function. Wiring to IP55 standard.

OPTIONALL SAFETY EQUIPMENT
- Stop/No Entry signs.
- Traffic lights, red/green 200mm diameter in freestanding post.
- Below ground vehicle detection loops.
- Electronic eye beam

CONTROLS:
- Key switch in gatehouse, on post or remote.
- Card reader - swipe
- proximity in freestanding post
- Intercom linked to handset in freestanding post
- Below ground vehicle detection loops for automatic raising on entry/exit with timer.
- Automatic link to fire alarm system.

INSTALLATION
Bollards fixed to reinforced concrete base by expansion bolts. Drainage and power supply ducts connected and concrete filled to finished ground level.