GEGE Rim Cylinder

Specially shaped mushroom housing pins in all Grundmann cylinders provide a barrier against probing and picking attempts. Housing pin lengths vary depending on the length of the corresponding barrel pins which hinders the pressing down by special picking tools, of the housing and barrel pins below the shear line. The sharp Paracentrie zig-zag shape of AP2000 cylinder keyway provides protection against the insertion of picking tools. Two pressed in hardened steel pins within the cylinder housing and two rotatable hardened steel pins within the cylinder barrel give protection. Two further hardened steel pins one each in the barrel and the housing, may be specified for even further protection.