An apparatus for compression forming of products realised using material comprising thermoplastic material, comprising: one or more die groups which are free, mobile and movable independently of one another, each of which comprises: a female part having a matrix cavity and a male part destined to penetrate into the matrix cavity such as to define a forming chamber of the product, the matrix cavity of the female part being destined to contain a batch of material; at least a heating station having at least a heating means destined to heat the die group up to bringing the plastic material contained therein to the fluid state, at least a cooling station destined to cool the die group located downstream of the heating station, the die groups being mobile and free to be cyclically inserted in the heating station and subsequently transferred therefrom to the cooling station, wherein the apparatus further comprises thrust groups, each of which is associated to a respective die group and is destined to provide a thrust for penetrating the male part into the matrix cavity during the stage of forming the product, the thrust group being mobile solidly with the respective die group during displacements thereof in operations performed in the heating and cooling stations and during transfer from a station to another, characterized in that each thrust group comprises thrust devices (21,210), suitable to be used for die parts (12,13) with relatively small thicknesses, compressing the molten material immediately after heating until it is cooled in the solid state. one or more die groups which are free, mobile and movable independently of one another, each of which comprises: a female part having a matrix cavity and a male part destined to penetrate into the matrix cavity such as to define a forming chamber of the product, the matrix cavity of the female part being destined to contain a batch of material; at least a heating station having at least a heating means destined to heat the die group up to bringing the plastic material contained therein to the fluid state, at least a cooling station destined to cool the die group located downstream of the heating station, the die groups being mobile and free to be cyclically inserted in the heating station and subsequently transferred therefrom to the cooling station, wherein the apparatus further comprises thrust groups, each of which is associated to a respective die group and is destined to provide a thrust for penetrating the male part into the matrix cavity during the stage of forming the product, the thrust group being mobile solidly with the respective die group during displacements thereof in operations performed in the heating and cooling stations and during transfer from a station to another, characterized in that each thrust group comprises thrust devices (21,210), suitable to be used for die parts (12,13) with relatively small thicknesses, compressing the molten material immediately after heating until it is cooled in the solid state. a female part having a matrix cavity and a male part destined to penetrate into the matrix cavity such as to define a forming chamber of the product, the matrix cavity of the female part being destined to contain a batch of material; at least a heating station having at least a heating means destined to heat the die group up to bringing the plastic material contained therein to the fluid state, at least a cooling station destined to cool the die group located downstream of the heating station, the die groups being mobile and free to be cyclically inserted in the heating station and subsequently transferred therefrom to the cooling station, wherein the apparatus further comprises thrust groups, each of which is associated to a respective die group and is destined to provide a thrust for penetrating the male part into the matrix cavity during the stage of forming the product, the thrust group being mobile solidly with the respective die group during displacements thereof in operations performed in the heating and cooling stations and during transfer from a station to another, characterized in that each thrust group comprises thrust devices (21,210), suitable to be used for die parts (12,13) with relatively small thicknesses, compressing the molten material immediately after heating until it is cooled in the solid state.