In the total volume of vegetable production, sugar beet takes a leading position. However, the current structure of sugar beet seed production in Russia is not able to meet the needs of agricultural producers with domestic seeds, which leads to a high share of the use of foreign breeding hybrids. Therefore, studies aimed at reducing the cost of manual labor when planting sugar beet mother plants through the development and use of orienting devices for planting machines are relevant. The article presents a three-dimensional model of a rotary paddle orienting device with given design parameters for planting sugar beet mother plants. The power expended on the drive of the rotary paddle orienting device providing the piece-by-piece supply of sugar beet plantings at a planting unit speed of 3.6 km/h has been determined. The kinematic parameters of the operation with the rotary paddle orienting device in conjunction with the landing apparatus of the planting machine have been substantiated. The energy calculation of the drive of the rotary vane orienting device was carried out and the loads acting on it were carried out, as well as the rolling bearings were selected. A chain transmission has been designed and modeled using the KOMPAS 3D computer-aided design system and its main parameters have been determined, which ensure reliable operation of the rotary paddle orienting device.