2-Leaf Vertical Riser


  • Simple modular construction enhances the ease of operation and reduces maintenance requirements
  • Lend themselves to the incorporation of access doors and are easily motorised.
  • Full weatherproofing can be incorporated into the door construction.
  • Can be clad in timber for greater aesthetic appeal, for example for wine cellars.
  • Possess exceptional structural strength.
  • Mounting the door on the building exterior can increase interior space.
  • With over 40 years of manufacturing experience, Coroma backs this quality product with nationwide after sales service.
  • Because of their size, the doors may be divided into single/double or three and four leaf doors. Each leaf has its own single counterweight that is guided by its own set of vertical tracks. As the bottom leaf rises, it connects with the next leaf and draws it up at the same time.
  • For safety purposes, each leaf has two independent lifting cables attached to the compensating bar, which is connected to the counterweight.
  • The doors are operated by hand crank, manual push-up, hand chain or compact electric motor.
  • The doors are fitted with Coroma manufactured tracks, hinges and fittings in hot dipped galvanised steel for corrosion resistance and long, trouble free service.
  • They are locked using shoot bolts.
  • The doors can be sheeted to match the building’s fascia or cladding.
  • Touch up paint is available in all standard colours.
  • The doors are operated by hand crank, manual push-up, hand chain or compact electric motor.

Single leaf doors are manufactured to a maximum size of 10m wide by 10m high. Consult the Coroma design office for doors outside these parameters.

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