The mechanical and automatic FB Mecasystem tire killers (harrows), TyreKillers are an economical, low cost and highly efficient solution for managing vehicle access control to a controlled area. Available in various configurations with adaptable size spike, tips, teeth, metal, this product can be surface mounted or in a shallow pit. Offering the possibility of bidirectional control or double directional control with teeth of varying lengths. The variety of options allows this traffic barrier to be broadened and applicable to a multitude of applications. For the hydraulic model, the unit is directly integrated into the harrow, which makes this obstacle suitable for installations in severe climatic conditions, as well as projects requiring large distances (up to 100 m) between the PLC and the blocking segment. For the mechanical tyrekiller, possibility of free exit access and controlled entry. FB Mecasystem Mechanical Tire Killers are an ideal solution for controlling vehicle access when an electrical supply is not available. We offer two types of devices: spring or lever. In the first case, the points always remain raised and one direction free to pass. Lever-type tire killers offer three modes of operation: spikes up and stuck in both directions, spikes down and stuck, spikes up and free in one direction. Available in a variety of blocking widths and tip lengths (standard 80mm or 170mm), as well as optional installation configurations: surface / above ground or submerged to ground level.