The blocker is constructed from heavy welded steel section to provide sufficient strength to exceed british axle loads.
The heavy duty durbar top plate is coated with safety markings, with removable access covers to enable efficient installation and servicing.
The blocker is operated by a hydraulic ram with the power unit (HPU) positioned locally within an externally rated cabinet. The blocker mechanism is encased in a sheet steel enclosure and has access points for onward connection to ducting for hydraulic hoses and control cables.
On installation the entire enclosure is encased by concrete with construction being subject to site ground conditions.
The power requirement is dependent upon the duty cycling requirement, number and size of blockers to be driven by the power pack.