Kast is characterised by a single piece shell with a choice of mechanism which is concealed within the seat and simply adjusted by semi concealed triggers. Kast’s strength lies in its innovative high resistance inner structure, adding to the environmental story of the chair.

Available with or without elegant die-cast aluminium armrests in a selection of colours which move with the body of the chair. With the technology hidden inside the shell and covered by a wide range of fabrics the underside is tidy and compact.

Product range


5 Star Castor Base Synchronized Mechanism


Medium Back 5 Star Castor Base Synchronized Mechanism



  • Locking backrest tilt angles, 18° with 1° seat angle
  • Visitor Mechanism provides a fixed height seat with free-float movement
  • 5 star aluminium castor base
  • Black or polished chrome base and arms


Seat and back consists of an injection moulded Nylon frame with structural elements such as the mechanism and seat rails which are manufactured in sandblasted aluminium, back bars are manufactured in steel. These are produced for various sections for strength and finished with an Epoxy Powder Coated covering.

The seat and back are covered with CMHR (Combustion Modified High Resilience) Flexible Polyurethane ‘Reflex’ foam for comfort, longevity and compliance to Flammability requirements.

Die-cast aluminium armrests with discreet fitting into the seat back and under-pan through upholstery.

These are upholstered in fabric which is available in a wide selection of colours, patterns and weaves. This assembly is covered over the whole shell and over the top of the whole mechanism.



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