A machine tool is provided with an enclosure with a charging door (10) arranged therein. In a first end position, the charging door closes the enclosure against the outside while in a second end position it occupies a position in which it is pivoted substantially about a horizontal axis in its upper portion. In this latter position, the lower rim of the charging door (10) is displaced into the interior of the enclosure. The charging door (10) is guided during its movement in such a manner that its lower edge is located at a higher level between the two end positions than in the said end positions.In order to facilitate opening and closing of the door for an operator, a power-operated drive (95, 100, 101) is arranged in a lateral bay (90) in the enclosure for opening and closing the charging door (10).