Loss in Weight Systems

Loss in Weight

Through repeated static weighing of the product bin to determine and regulate the mass flow.

High dynamic accuracy even during the critically refill period.

The bin is slowly emptied, and the loss-in-weight per time unit gives the amount signal which controls the dosing speed to the required value.  When the bin is nearly empty it switches to the trend table and through historical data determines the amount during refilling of the weigh bin. When the bin once again is almost full, it we switch back to normal operation.

The weight control unit continuously ensures that the proportion between the required dosing and the actual does amount is update, which makes the system well-suited for proportional regulation.



  • Hopper Design: Round, Square, Conical, …
  • Coated Steel st. 37.2/ Stainless Steel AISI304/ Other
  • Special controller incl. LIW software
  • For feeding of extruder or pellet mill
  • Capacity range for standard sol. 200 kg – 26.000 kg/h


A Loss in Weight solution can be good for weighing of poor and difficult flowing meal types.


With unknown products or limited experience in the product characteristics, Jesma offer to perform product tests in our test centre to achieve the optimum technical solution.

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