Dosing and weighing conveyors

Continuous shaftless weight

Continual shaftless screw weighing device with weighing deviation less than 1 %.

The RATAJ® continuous shaftless balance combines the function of material transport and continuous weighing into one unit and saves costs for the investment of the conveyor and the balance.

The electronic weighing system with four strain gauges enables accurate monitoring of the amount of currently transported material with high accuracy. The amount of weighed material can range from a few kilograms per hour to several tens of tons per hour.

The same conditions apply to the design of a weighing shaftless spiral conveyor as to the installation of a conventional shaftless spiral conveyor.

Conveyor made from


  • Type RL - steel (according to EN - S235, S355)
  • Type RLN - stainless steel (according to ASTM - AISI 304, AISI 310, AISI 316)
  • Type RLP - composite (plastic + steel)


  • steel (according to EN - S235, S355)
  • stainless steel (according to ASTM - AISI 304, AISI 316, AISI 321)

The diameter of the conveyor piping depends on the type of material, for almost any type it is possible to choose from several variants.

More than 5 900 units of conveyors for nearly 600 kinds of materials in 34 years of market experience guarantee professionalism even for your demand.

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