Injectors ANR-68 and ANR-440 have been designed to inject brine into fish (fillet or whole) through a needle. Special design is used to prevent the delicate fish pieces from cuts and breaks. Built-in pumps allow smooth adjustment of pressure from 0.1 to 2.5 bar which prevents from tearing of the muscles. The device has smaller clearance between the conveyor belt and needle head (140 mm) that gives more stable injection level in comparison with other models of injectors. Injector ANR-68 is equipped with one needle head and one centrifugal, stainless steel pump; ANR-440 is equipped with two injection heads and two centrifugal, stainless steel pumps. The built-in microprocessor allows to set the following parameters of the machine, such as working conveyor belt, number of beats and pump productivity. In this case, set parameters will be stored in the processor memory which ensures repeatability of the injection process. The machines are equipped with a set of sieves to provide brine pre-cleaning, however, also, they can be designed to work with a slotted rotating filter that provides high accuracy of the filtering.