ROSTA components for eccentric feeders and vibration screens are completely maintenance-free and offer quiet and smooth operation. In addition, they are very durable and guarantee a very long period of failure-free operation.

Rosta type AU

Oscillating arms’ heads with internal thread:

• adjustable arm length by roman screw
• integrated flange for easy installation

Versions with right and left thread.

Rosta type AR

Oscillating arm heads for pipe mounting:

• adjustable arm length
• easy installation on the pipe with a clamp
• possibility of folding single or double arms

Rosta type AS

Oscillating arms with two fixings:

• P version with flanges for easy installation
• C version with central mounting holes

PV version available with flanges on opposite sides.

Rosta type AD

Double oscillating arms for two-mass feeders:

• P version with flanges for easy installation
• C version with central mounting holes

PV version available with flanges on opposite sides.

Rosta type ST

Oscillating drive heads with internal thread:

• versions with right and left thread
• easy assembly

Rosta type AK

Universal oscillating joints for vibration screens:

• ensure harmonious circular movement
• maximum angle of oscillation of 10 degrees
• can be used in suspended installations

Rosta type AV

Oscillating handle with internal thread:

• easy assembly
• can be mounted in a cross or parallel configuration (circular or elliptical oscillation)

SEE HOW FEEDER SUSPENSIONS WORK ON YOUTUBE