FEEDERS

OPTIMISED FEEDING. PRECISE DOSING.

SIDE FEEDER

VOLUMETRIC FEEDER

VERTICAL FEEDER

At STEER, we craft both volumetric feeders and side feeders. STEER Feeders assure optimised feeding of the materials ranging from highly cohesive to interlocking fibers. The feeders are known for their noiseless and pollution-free operations. Besides, STEER has also designed conveying elements for high consistency and precise dosing into the extruder.

 DESIGN AND FEATURES

 Understanding bulk material is crucial to making an efficient feeder for twin-screw extruders. The screw has to be designed based on the type of bulk material i.e., granular, cohesive powders, fibres or flaky materials. STEER has developed screws that are appropriate for every application. The Hopper, designed on bulk material properties, overcomes defects like rathole and arching.

STEER Side Feeders are designed to feed a variety of materials like glass-fibres, powder additives, mineral fillers etc. Side feeders can also be used for devolatizing applications through side venting. The Side feeder height is adjustable within a range and is portable (by the use of castor wheels). Barrels and screws are of special tool-steel material and suitably surface treated for required applications. The screws are of a co-rotating, self-wiping type and the drive is a 4 pole TEFV, Cage type, AC Motor, controlled by a variable speed microprocessor controlled drive control.

FEED ENHANCEMENT ELEMENTS

STEER VACUUM STUFFERS

In a twin screw extruder, vacuum vent is generally located before the metering zone for removal of gases effectively in a continuous manner at lower than atmospheric pressure. This degassing helps to conserve the quality of the melt that is affected by the presence of monomers, solvents, moisture and other volatiles.

Vacuum vent stuffers are used to apply vacuum to  the process section to remove gas entrainment in the melt while simultaneously preventing the melt from blocking the vent opening.

Advantages associated with the use of vent stuffers are:

  i. Improved volatile removal

 ii. Decreased downtime due to vent blockage

iii. Higher quality and / or production rate.

The screws are decoupled from the gearbox output shafts via a connecting zone in the same manner as the extruder. This approach provides the ultimate degree of process flexibility, allowing for specialized configuration of the screw elements. The STEER side vacuum vent stuffer are fitted with high performance gearboxes with thrust bearing assemblies which provides the highest level of reliability and service life expectancy.

Side Stuffers

Top Stuffers