Piston compressor comprising: - a piston guided in a compressor cylinder wherein the piston and the compressor cylinder form a compressor chamber for compressing a fluid; - a shaft provided rotary around its axis ; and - a lifting element arranged eccentrically to the axis of the shaft and provided fixed to the shaft , wherein the lifting element and the piston are configured in such way that the piston performs a movement between a maximum and a minimum lifting position when the shaft performs a full rotation around its axis , wherein the compressor further comprises at least one further piston guided in a further compressor cylinder, wherein the at least one further piston is connected directly or via intermediate elements to a further lifting element arranged on the shaft in such way that the at least one further piston is configured to perform a movement between a maximum and a minimum lifting position when the shaft performs a full rotation around its axis , characterized in that a space is provided between the lifting element and the further lifting element for cooling, wherein the lifting element comprises a circular disc, which is eccentrically provided to the shaft regarding its axis . - a piston guided in a compressor cylinder wherein the piston and the compressor cylinder form a compressor chamber for compressing a fluid; - a shaft provided rotary around its axis ; and - a lifting element arranged eccentrically to the axis of the shaft and provided fixed to the shaft , wherein the lifting element and the piston are configured in such way that the piston performs a movement between a maximum and a minimum lifting position when the shaft performs a full rotation around its axis , wherein the compressor further comprises at least one further piston guided in a further compressor cylinder, wherein the at least one further piston is connected directly or via intermediate elements to a further lifting element arranged on the shaft in such way that the at least one further piston is configured to perform a movement between a maximum and a minimum lifting position when the shaft performs a full rotation around its axis , characterized in that a space is provided between the lifting element and the further lifting element for cooling, wherein the lifting element comprises a circular disc, which is eccentrically provided to the shaft regarding its axis . the lifting element and the piston are configured in such way that the piston performs a movement between a maximum and a minimum lifting position when the shaft performs a full rotation around its axis , wherein the compressor further comprises at least one further piston guided in a further compressor cylinder, wherein the at least one further piston is connected directly or via intermediate elements to a further lifting element arranged on the shaft in such way that the at least one further piston is configured to perform a movement between a maximum and a minimum lifting position when the shaft performs a full rotation around its axis , characterized in that a space is provided between the lifting element and the further lifting element for cooling, wherein the lifting element comprises a circular disc, which is eccentrically provided to the shaft regarding its axis . <EOS>