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WEIGHFEEDERS OF SJN ITS ADVANTAGES
1. SJN Weighfeeders are available in different models to cater
to a wide range ofcapacities from fractional tonnes per hour to
thousand tonnes per hour.
2. SJN weighfeeders are available in various lengths to take
care of the feed todischarge distance. It can also cater to both
horizontal and inclined installations as
per actual site reuirement.
!. "he weighfeeder is fitted with a speciall# designed$ rugged
feed hopper to handleall t#pes of bulk solids % free&flowing$
sluggish$ highl# abrasive and of an# grain
size.
'. "he feed hopper design ensures that the material load on belt
is such that thestarting and running torue reuirement is minimum.
"he motor power
reuirement is thereb# ver# low and helps in power saving in the
long run.
(. "he weighfeeder frame with ) channel gives it a light weight
construction and
also ensures eas# fittment of pulle#s and idlers$ thus
minimising maintenance
downtime. *elt changing is also a uick and eas# process taking
at best 1 to 2
hours.
+. "he weighbridge with double loadcell arrangement ensures
direct sensing of
material load on belt thus minimising the chances of error due
to manufacturingtolerances. In this regard we like to mention that
before we used to provide
weighfeeders with single loadcell and lever mechanisms. ,owever$
in due course
of time we found that these are sometimes prone to errors due to
manufacturingtolerances. ,ence$ our partner Schenck process of
-erman# came out with a new
design$ wherein$ the weighing idler is supported on loadcells at
either end.
. "he auto&tension cum screw&take&up unit acts in
such a wa# that proper belttension is maintained during running. In
addition belt swa# limit switches are
provided to trip the feeder in case of belt drift.
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/. "he weighfeeder has both volumetric and gravimetric feed
control facilities. In
gravimetric feed control it can cater to a ma0imum bulk densit#
variation of
!!.!! of the nominal bulk densit# of the material.
. "he high speed microprocessor controller has a device accurac#
better than
3.3(. Its luminescent clear te0t displa# in 2 lines helps in
eas# diagnosis offaults b# diagnostic and self testing
functions.
13. "he controller has auto&calibration facilit# 4 can be
factor# set for uick and eas#
adaptation to )lient5s process.
11. It has a fail&safe data storage facilit# 4 no additional
batter# back&up is reuired.
12. It has versatile connectivit# to data processing s#stems and
printers.
