Langmatz QualityBox 3D–ribFrame – access chambers designed to resist


  • Low dead weight allows fast and cost-effective installation of Langmatz access chambers.
  • Modular base kits enable you to accommodate numerous manhole heights and connection positions.
  • The use of industrial-grade polycarbonate ensures endurance and loadability up to D400.
  • Predetermined break points in the frame elements allow pipes to be inserted quickly and flexibly.
  • Cast, concrete or paved manhole covers are the ideal solution in a variety of urban settings.
  • Open side sections make connection to existing pipe routes (overbuild) child’s play.
  • Continuous height adjustment and modular manhole heights enable the adjustment to any surrounding level.
  • A hot-dip galvanized frame protects the upper manhole edge permanently against weather influences.


Low dead weight

  • Great advantage during transport and handling
  • Quick and inexpensive installation of polycarbonate manholes
  • No heavy transport and lifting equipment required

Modular construction

  • One- or two- piece manhole cover
  • Hot-dip galvanized steel frame with elastomer pad
  • Polycarbonate top frame with internal insulated walls
  • Polycarbonate frame elements available in a variety of heights and variants
  • Base plate

005_Modularer Aufbau


Industrial grade material

For all load-bearing elements made from polycarbonate:

  • Modified polycarbonate (PC)
  • High temperature resistance
  • Suitable for hot asphalt / tarmac
  • Maximum stability
  • Fire safety
  • High chemical durability
  • High UV and weather resistance
  • Can be recycled several times
  • Hot dip galvanized steel frame


Variable manhole covers

  • Test class DIN EN124 | A15, B125 or D400
  • Cast iron
  • Concrete-lined
  • Suitable for paving
  • Chequer plate or plastic

variable manhole covers


Your contact

Karl-Heinz Hebermehl

Karl-Heinz Hebermehl
phone.: +49 8821 920-126
fax: +49 8821 920-2126
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