Principle and Operation
In response to specific customer requirements across the spectrum
of industry Rospen Industries have developed their successful
range of Metering Screw Feeders to encompass special designs
that are both industry sector and material specific. Whatever
the feeder type the result is the continuous metering of all
materials from flushing powders to fibrous particulate products
at a constant volume to high accuracies. Based around the benefits
of the Rospen, Metering Screw
Feeder principle, the feeder variations listed below
together with a selection of photographs typifies the experience
that Rospen Industries have brought to a diverse user base worldwide.
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Food Industry
Unusual configuration of metering screw feeders mounted
in opposite directions on a single base plate fed via a
common bifurcated hopper.
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Snack Foods Industry
To facilitate the necessary cleaning between regular product
changes associated with flavour applications in the snack
food sector, Rospen have developed an even faster system
for dismantling the screw feeder. Clip on fronts with over
toggle clamps are offered as an alternative to the standard
hand knob arrangement.
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Water Industry
The use of a Rospen air driven vibratory cone hopper mounted
above the inlet of the Metering Screw Feeder ensures a smooth
and regular flow of material to the variable feed screw.
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Chemical Industry
The feeder shown is a typical model that can be fitted with
a Rospen standard pneumatically operated shut off valve,
which isolates powders from process vessel fumes and is
supplied to ATEX rating as required.
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Pharmaceutical Industry
Gas tight feeder with gas purged seals and ATEX rated motors
as required. Design standard for the pharmaceutical industry
includes open topped downspout to aid cleaning and Makralon
windows for visual monitoring of product and flow conditions.
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Plastics Industry
Typically, heavy-duty configuration with 130 mm diameter
twin screws suitable for metering into an extruder. Of robust
construction the unit is capable of high capacity throughput.
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