Abstract: Equipment for moulding products of thermoplastics material where a pre-heated parison (1) is encompassed by reciprocating mould sections (4) for shaping and cooling the parison. The equipment comprises a first plate (8) that is affixed to a reciprocating carrier part (5) at its one side, and that supports a mould plate (10) at its other side. The mould plate (10) is provided with one or more mould elements (3, 12), that may be removable. The first plate (8) is provided with a cooling circuit (6, 17), and a network of bores or channels (7, 9a) that communicates with corresponding bores/channels (9b) in the mould plate, for conducting gas (air) to or from orifice means (13) in the mould plate. The contact surfaces between the mould elements and the mould plate and between the mould plate and the plate (8) may be provided with grooves or recesses (11a, 11b, 11c, 11d), thereby providing a system of channels in the respective contact surfaces.