A vibratory system for a screening and/or feeder machine, the vibratory system including shaft lines, each shaft line having an unbalance module, the vibratory system also having a drive device configured to drive the shaft lines in rotation in synchronous manner and in the same direction. The vibratory system also includes an angle modifier device configured to modify the angular position of the unbalance module of one shaft line relative to the angular position of the unbalance module of the other shaft line or of one of the other shaft lines.

A gyrator feeder that gyrates a dispensing member to uniformly and circumnavigating dispense material by generating a true circular orbital vibratory motion in the dispensing member by either rotating an offset weight along a vertical central axis of the dispensing member or by positioning vibratory motors diametrical opposite from each other on a gyrator housing and synchronizing the vibratory motors with each other to thereby dispense material.

A gyrator feeder that gyrates a dispensing member to uniformly and circumnavigating dispense material by generating a true circular orbital vibratory motion in the dispensing member by either rotating an offset weight along a vertical central axis of the dispensing member or by positioning vibratory motors diametrical opposite from each other on a gyrator housing and synchronizing the vibratory motors with each other to thereby dispense material.

A vibration device for an arrangement for producing a nonwoven fabric web, wherein the vibration device is configured to be arranged in a transverse direction of the arrangement under a conveyor belt for fibers from which the nonwoven fabric web is produced, wherein the vibration device is configured to cause the conveyor belt and the fibers transported thereon to vibrate, and wherein the vibration device includes a beam whose top side is configured to contact a bottom side of the conveyor belt at least temporarily, wherein the beam is supported or only excited or excitable by the vibration device so that the beam essentially performs or permits no vibrations in a conveying direction of the arrangement.

A vibration device for an arrangement for producing a nonwoven fabric web, wherein the vibration device is configured to be arranged in a transverse direction of the arrangement under a conveyor belt for fibers from which the nonwoven fabric web is produced, wherein the vibration device is configured to cause the conveyor belt and the fibers transported thereon to vibrate, and wherein the vibration device includes a beam whose top side is configured to contact a bottom side of the conveyor belt at least temporarily, wherein the beam is supported or only excited or excitable by the vibration device so that the beam essentially performs or permits no vibrations in a conveying direction of the arrangement.

A conveyor device for a material processing plant includes a material conveyor section. A support device is coupled to the conveyor section, wherein the support device bears a vibration exciter having two exciter units, wherein the exciter units, each have an exciter motor which drives at least one imbalance mass using a motor rotor, wherein a fastening section is used to fasten the exciter units to the support device for vibration transmission. To make for a structurally simple design and improved force transfer from the vibration exciter into the support device the motor stators of the two exciter motors may be interconnected by means of at least one connecting element, wherein the connecting element forms a bridging area, which bridges the distance between the motor stators.

A conveyor device for a material processing plant includes a material conveyor section. A support device is coupled to the conveyor section, wherein the support device bears a vibration exciter having two exciter units, wherein the exciter units, each have an exciter motor which drives at least one imbalance mass using a motor rotor, wherein a fastening section is used to fasten the exciter units to the support device for vibration transmission. To make for a structurally simple design and improved force transfer from the vibration exciter into the support device the motor stators of the two exciter motors may be interconnected by means of at least one connecting element, wherein the connecting element forms a bridging area, which bridges the distance between the motor stators.

A vibratory apparatus includes a deck, an exciter, and a controller. The exciter is coupled to the deck. The exciter includes a shaft with at least one mass attached thereto, and a low-slip motor, such as a permanent magnet motor. The shaft is coupled to the deck via one or more resilient members.

A vibratory apparatus includes a deck, an exciter, and a controller. The exciter is coupled to the deck. The exciter includes a shaft with at least one mass attached thereto, and a low-slip motor, such as a permanent magnet motor. The shaft is coupled to the deck via one or more resilient members.