HVM Blocker

The latest model of Terra Blocker is the MkII which has been successfully impact tested to the BSi PAS68 specification, stopping a 7.5t vehicle travelling at 30mph (48kph) which equates to 667kJ. The PAS 68 Terra Blocker tests resulted in the vehicle being stopped within the aperture.

Hydraulically driven. Designed for ease of installation and maintenance.

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

PAS68 Terra Blocker 7.5@30mph

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

Maximum width:5000mm (securing apertures of 7.4m)
  • PAS 68 Terra Blocker 7.5t @ 30mph

    V Road Blocker 7500[N2]/48/90:0.0/0.0

    Tested dimensions : width 3000mm, lift height 810mm

  • • PAS 68 Terra Blocker 7.5t @ 30mph

    V Road Blocker

    7500[N2]/48/90:0.0/0.0

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.

  • Terra Retractable Blocker
  • impact tested in accordance
  • with BSi PAS 68 specifications
  • Hydraulically Driven.

Types of HVM Barriers


Terra Shallow Blocker MkII 7.2t @ 80kph (50mph)

Impact tested to the new International IWA14 specification with 7.2t @ 80kph (50mph)

Lift Height 1000mm. Widths up to 4m. Bespoke available.

PSSA Verified


Terra Surface Mount Blocker 7.5t @ 50mph

Impact tested to the PAS 68 specification with 7.5t @ 50mph

Lift Height 1100mm. Widths up to 4m. Bespoke available.

PSSA Verified


Terra Blocker
7.5t @ 30mph

Impact tested to the PAS 68 specification with 7.5t @ 30mph

Various Lift Heights available dependent on specification. Widths up to 5m. Bespoke available.

PSSA Verified


PAS 68 Terra Blocker
7.5t @ 50mph

Impact tested to the PAS 68 specification with 7.5t @ 50mph

Various Lift Heights available dependent on specification. Widths up to 5m. Bespoke available.

PSSA Verified


K12 Terra Blocker
6.8t @ 80kph

Department of State K12 standard now superseded by ASTM M50 standard.

Zero penetration. Fully functional after impact.

Maximum width 5m

PSSA Verified