Surface-mounted rack-and-pinion door closer with closing delay - EN 1154 A - for single-leaf doors up to 1400 mm wide - suitable for smoke and fire protection doors (use mounting plate). It features an adjustable closing force in the range of 1 - 6, a visual size indicator, and adjustable opening damping. The thermostabilized closing speed allows all functions to be set from the front, with end position adjustment via a connection. It includes a safety valve in both opening and closing directions and is compatible with right- and left-hinged doors without conversion. Additional technical features: supplement without connection.