K12 Terra Blocker

Please note: This product has been superseded by our IWA14 Terra Blocker

K12 Terra Blocker – 6.8t @ 80kph

The K12 Terra Blocker has been successfully impact tested to Department of State K12 L3 standard, now replaced by the ASTM M50 P1 standard. This means the K12 Terra Blocker successfully stopped an American 6.8t vehicle travelling at 80kph (50mph). The K12 Terra Blocker test resulted in the vehicle being stopped within the aperture with Zero Penetration. The blocker remained fully functional post impact.

Hydraulically driven. Designed for ease of installation and maintenance.

The K12 Terra Blocker can be interfaced to any access control systems. Traffic Light System included as standard

The Terra Blocker’s Top Plate can be finished with an anti skid resistant treatment which has been fully tested under laboratory conditions for at least 12 months.

  • Hydraulically driven
  • K12 L3 Terra Blocker, 6.8t American Truck at 80kph (50mph)
  • Maximum width: 5000mm
  • K12 Tested dimensions : width 2500mm, lift height 810mm
  • Foundation Type C

The Terra Blocker is a PSSA Verified product. The Perimeter Security Suppliers Association has introduced a verification scheme to provide confidence to clients of the perimeter security industry and ensure that the associations members conform to internationally recognised quality standards. For more information please click here.

K12 Terra Blocker 6.8t@50mph Specifications


The K12 Terra Blocker

    Basic Specs

  • P1 – Zero Penetration
  • Fully functional
  • K12 Tested dimensions : width 2500mm, lift height 810mm
  • Width: Variable up to 5000mm
  • More details

  • Construction: The blocking segment shall be constructed of heavy steel section with steel front plate and covers
  • Foundation Type C
  • Axle Loadings: 24 tons
  • Finish: Shotblasted, hot zinc sprayed (galvanised), primed and finished with a final coat of polyurethane paint. Client to advise RAL paint number. Alternative finishes available on request. Frontier Pitts Special Lifetime Paint; an anti-slip paint for road vehicles available on request.
  • Options: Accumulator – allows a number of operations in power failure mode, EFO(Extra Fast Operation), Manual Hand pump, High Security Cabinet, Anti-tamper alarms
  • Normal Operating Speed/Time: 4-6 seconds, Depending on configuration
  • EFO Speed: 2-3 seconds, Depending on configuration
  • Duty Cycle: 100% duty rating
  • Durability: Fully functional after IWA 14 impact test
  • Safety: Vehicle Detector Loops, Safety Photocells, LED Traffic light heads, Flashing beacon, Audible alarm
  • Controls: The programmable logic controller (PLC) with built in safety features will accept inputs from access control systems including access card, voice, etc. Push button as supplied as standard
  • Accreditations: Secured by Design, BRE Global

Civil Engineering

K12 Terra Blocker

For more information please contact the Technical Sales Department on

01293 422800 or email:

[email protected]

Electrical Engineering

Industry standard electricals

Electrical Requirements: Three Phase, Depending on configuration

Specifications subject to change and are dependant on product options. Please contact Frontier Pitts to request more information.

Product Video


Photo Gallery



Warning and information signs installed on the barrier boom such as ‘STOP’ ‘NO EXIT’ and ‘NO ENTRY’

Traffic Light System

Traffic Light systems are highly recommended to be installed with all road blocker and bollard systems to advise all users of its position. 100mm traffic light head can be pole or mounted on control cabinet

Lights in Blocker

Internal lights within the skirt of the road blocker for better visibility

Traffic Light Cage

Vandal resistant traffic light cages


In the event of a power failure or sabotage, the accumulator can raise and lower the blocker/bollard for a number of predetermined operations. An accumulator is a self contained charged unit with battery backed control system.

Extra Fast Operation

Increases the products speed of operation to a few seconds. Dependent on configuration. Please contact Technical Sales for more information on 01293 422800

Manual Handpump

In the event of a power failure, a hand pump/release can be provided to enable the manual raising and lowering of the blocker/bollard.

Hand drill to operate manual hand pump

Hand drill to operate manual hand pump on a Rising Terra Bollard or Terra Blocker.

Vehicle Detector Loops

Vehicle detector loops installed beneath the road surface to detect vehicles. This will prevent the automatic equipment from closing on a vehicle within the aperture. Safety induction loops cut into the road surface. This will prevent the gate from closing on a vehicle within the aperture.

Safety Photocells

Safety Photocells produce beams of light which cross the road way to monitor vehicle and pedestrian movement. If an object breaks this beam, the automatic equipment will stop & reverse. On gate installations, two pairs of photocells are usually fitted. Ultra Sonic Sensors are also available.

High Security Cabinet

Provides high security protection to the control cabinet of Frontier Pitts PAS 68 Anti Terra product range. Special Security cabinets can be fitted and tested to BRE 1175 with 6 point security locking mechanism and fire resistance to DIN 4102. High security mauer key lock, Class A, ECBS/ENV 1300 approved, with similar rating to BS EN 1143-1 1997.

Anti Skid Paint

The Terra Blocker’s Top Plate can be fully coated with an anti skid resistant treatment which has been fully tested under laboratory conditions for at least 12 months
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