Adaptor plate and injection molding machine having such an adaptor plate

An injection molding machine comprising:

• a cover plate;
• a hot runner plate having a plurality of openings for receiving nozzle housings;
• and
• a plurality of module systems, each module system consisting of:
• an adaptor plate,
• a plurality of piston housings, wherein, in each piston housing, a piston is connected to a closure needle,
• a hot runner distributor plate having a hot runner arranged therein, and
• a plurality of nozzle housings,
• wherein the plurality of nozzle housings are arranged so that by a movement of one of the pistons the closure needle connected to said piston selectively opens or closes an opening in the nozzle housing,
• wherein the adaptor plate connects the cover plate to the plurality of piston housings,
• wherein the adaptor plate has a first fluid channel for supplying a first control fluid into the piston housings and a second fluid channel for supplying a second control fluid into the piston housings,
• wherein the first fluid channel has at least one first fluid channel inlet for receiving the first control fluid and having a plurality of first fluid channel outlets for delivering the first control fluid to the piston housings, and the second fluid channel having at least one second fluid channel inlet for receiving the second control fluid and a plurality of second fluid channel outlets for delivering the second control fluid to the piston housings.