FIELD: pneumatic jigging machines with air chamber. SUBSTANCE: machine includes air chamber for creating pulsations which is connected with compressed air supply main through intake valve and with outlet main through outlet valve. Both valves are made in form of plate-type valves. Each valve is connected via its stem with pneumatically loaded drive which is connected in its turn with compressed air source when control valve is in intermediate position. Used as compressed air source is pressure chamber of intake valve. Each drive of intake and outlet valves is brought in communication with pressure chamber of intake valve through pipe line fitted with electromagnetic control valve. EFFECT: enhanced reliability. 12 cl, 5 dwg
