Constructions of oilfield equipment details (thread, cover, flange, etc.) can be made of various plastic materials. The influence of technological modes of casting on the quality of plastic parts of oilfield equipment is considered. In the manufacture of plastic parts from various compositions of press materials, the main technological factor affecting the quality of the parts is the casting regime. Based on the results obtained, modes are recommended for a specific brand of plastics used in oilfield equipment.