The main problem of distribution systems with a centralized metering seed actions of pneumatic planters is deficient feed-rate consistency of seeds in supply coulters. Thus, the purpose of the study is to develop the optimal ways of decreasing the irregular distribution of the seeds and mineral fertilizers in the coulters. In order to achieve this goal, it is suggested to give the air-and-seed mixture a certain form of organized motion by installing inside the transport line in front of dividing attachment of helical spiral of an original construction. The authors observe that the pneumatic pipeline with distributor with equal turns gives the most qualitative distribution of the material. Moreover, offset value of turns, particle velocity in different sections of the transportation, which were used to calculate their design parameters were theoretically justified. The practical value is that the submissions can be used in current practice of increasing the production of horticulture.