A separator for separating granular material, such as seed, fertilizer or pesticide, from a material-laden airflow (FI) includes a separator zone (Z) having an inlet (11) for a material-laden airflow, a material outlet (13) and an air outlet (12, 12′), and at least two separator parts (15, 15′), which extend only substantially along a material flow (FM) in the separator zone (Z) and between which is formed a separator gap (12, 12′), which is sufficiently narrow to allow air, but not the granular material, to pass through it. At the material outlet (13), the separator gap (12, 12′) is at least partially open, viewed in a direction which is substantially parallel with the material flow (FM), so that material which gets stuck in the separator gap (12, 12′) is allowed to leave this by means of displacement principally along the material flow (FM).
