The DSP® K12 Road Blocker offers the ultimate security against unauthorised wheeled vehicles of all sizes and weights. The full depth installation road blocker is suitable for applications where excavation is not restricted by utilities and services. The DSP® K12 barrier is crash tested to internationally accepted standards and remains operational after impact.

Main Features

  • Operational after impact
  • Crash Tested and certified according to PAS 68: 2013 & DOS
  • Blocking height: 1000mm
  • Heavy duty fully enclosed design
  • Emergency Fast Operation up to 2 seconds*

*optional feature


  • Road blocker with electro-hydraulic drive in separate drive cabinet.
    Blocking element with 2 nos. red warning lights.


  • PAS 68 V/7500[N3]/80/90/0.0/18.0
  • DOS SD-STD-02.01 Rev. A 03/2003 K12/L3

Blocking Width

  • 2000 - 4000mm in 500mm increments

Blocking Height

  • 1000mm

Base Frame (LxWxH)

  • (blocking width + 290mm) x 1500 x 1100mm

Drive Cabinet (HxWxD)

  • 1400 x 1200 x 400mm incl. 200mm high base (standard / EFO)
  • 1800 x 1200 x 500mm incl. 200mm high base (RO3 for EU & EFTA countries)


  • Approx. 1930 – 3670kg (road blocker)
  • Approx. 280 – 400kg (drive cabinet)

Operating Time

  • Raising: approx. 5 sec, lowering: approx. 4 sec (standard)
  • Emergency fast operation (EFO): approx. 2 sec raising (with optional accumulator)

Wheel Load

  • 100 kN according to SLW60 – DIN 1072


  • 4.0 kW, 400 V (three-phase), 50 Hz

Hydraulic Fluid

  • Mineral oil HLP 22 or biodegradable oil Plantohyd 22 S,
    non-hazardous to water

Control Unit

  • PLC in control box installed in drive cabinet (standard),
    control voltage 24 V

Control Box (HxWxD)

Control unit configuration
  • STANDARD: 600 x 400 x 200mm, IP66
  • RO3 OPTION: 800 x 400 x 300mm, IP66

Supply Voltage

  • 400 V (3Ph + N + PE), 50 Hz

Emergency Operation

  • Via hand pump (standard)

Temperature Range 

  • -20°C to + 60°C


  • Blocking element front cover and top plate - RAL 7030 stone grey
  • Underground housing - RAL 7030 stone grey
  • Drive cabinet - RAL 7035 light grey

Control Unit

  • PLC in separate control box for wall mounting inside a building,
    control voltage 24 V

Emergency Operation

  • Accumulator incl. rechargeable batteries for 3 movements (RO3)


Blocking element front cover and top plate
  • V-striped RAL 1007 daffodil yellow / RAL 9005 jet black, V-striped RAL 3000 flame red / RAL 9010 pure white or Any RAL colour or DB colour

DSP K12 Road Blocker crash test DOS K12

Technical Specification

DSP® K12 Road Blocker Technical Specification Hostile Vehicle Mitigation Brochure To request a PDF/DWG drawing please contact us
DSP® K12 Road Blocker