CHECK WEIGHERS















Weight  variation in wet or baked product could be due to Dividers malfunction or Cutter /Moulders setting or
configuration . The major steps is to rectify the problem in the equipment first but  for detection purpose
bakery plants to set up   in motion check weighers after packing section  in biscuit manufacturing and
checkweighers at dividers end to measure the weight of the dough piece .
Installation of check weighers  would   make the conventional
table top scales obsolete   at some places .
These check   helps bakery manufacturers in two ways

Under weight

You can be  sure of the weights  products which comes through check   weighers  and its legal requirement
for all manufacturers to adhere to the declared weight with some tolerance s.
Over weight

Any variation of weights whether Under weights or Over weights  does harm company interests . Corrections
can be done  at manufacturing areas to get the proper  weight of the product

Working Principle of Checkweigher

Work on Pneumatic  applications,  pneumatic cylinders are used for retraction or  folding of conveyors  for
rejection of packets. Product s are put on the conveyors which have load cells which gauge s weight and
send signals to the  pneumatic cylinders  which  are activated through  .valves  compressed air  then either
retracts or pushes the folding conveyor or some checkweighers have pneumatic nozzles on the conveyors
surfaces which pushes the under weights and overweights through blast of compressed air   .Which drops
the under weight or over weight packets . One has to check  the packing machine output to synchronize  
with check  weigher .

Specification of Check weighers

Products/per minutes- packets/min
Set Weights = +/- gms
Tolerances =+/- gms
Air Pressure = kg/cm2
Major manufacturers of  checkweighers
Mettler Toledo
Ishida
Lock Inspection
Sartorius
Wright Machinery
Check weighers now days  have data storage where all details of  weights of the product can be stored and
can be  retrieved analysis.
Any variation of weights whether Under weights or Over weights  does harm company interests . Corrections
can be done  at manufacturing areas to get the proper  weight of the product.










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