The disclosure relates to a membrane pump head (1) for a homogenizer or a high-pressure pump. The membrane pump head (1) comprises at least one pump head (1) enclosed in a pump housing (2). The membrane pump head (1) also includes a product chamber (3) with inlet (20) and outlet (7) for the product, as well as a hydraulic chamber (4) in which a piston (9) is disposed to operate. The product chamber (3) and the hydraulic chamber (4) are separated by a double membrane (5). The membrane (5) is oriented at 15-75 in relation to the longitudinal direction of the piston (9).