Fixed and openable steel grids RC3

The KST fixed grids are made of steel bars ø20 with a maximum bar spacing of 120 mm and steel flat bars 6x45 with a maximum spacing of 400 mm, in a frame made of L- profile, C-profile or closed profile. The openable grid type KSR and KSRK is suspended on two or three steel, welded hinges with ball bearings. The frame is made of a steel sheet 2 mm thick. The grid can also be made on a shared frame with a door leaf. The KSR grid can be equipped with multipoint lock or single-point lock. The KSRK grid is equipped with certified fixation for padlock. The openable grids can be equipped with an electric strike, position contact, door closer and other equipment.

The grids can be additionally secured with a steel mesh made of 2 mm wire with fine mesh 10 x 10 mm or 20 x 20 mm in order to prevent documents or objects from being passed through the closed grid by unauthorized persons. The KST, KSR and KSRK grids are made for windows and doors openings in single and double-leaf versions, and as partitions and structures in various dimensions. The grids are powder coated in RAL colors, and they are additionally zinc plated in the exterior.

The construction of the grid was tested in the IMP laboratory and obtained the RC3 burglary resistance class according to EN 1627: 2012. All critical components, such as vertical bars, hinges, and fixations for padlocks, have been protected against cutting.