This production line is designed for shot blasting (till the 2nd purification efficiency acc. to GOST 9.402-80 (SA 2 SIS 055900). The work in the chamber has a following process: the underframe is placed on the carriages by means of handling machinery. Then, the carriage is pulled into the chamber by a winch. The doors are closed, two operators clean the wagon underframe by shot blasting. The operator is equipped with a complete protective clothing and a breather. Depending on the year seasons the breather has 2 modes of air supply: with heating and cooling. To do the cleaning of metalworks convenient in the height there are galleries which can be placed to the necessary positions inside the chamber. The chamber is equipped with lighting and venting systems.