RESERVED AREA

SUCTION LANCES

Chosing the right lance is one of the key factors to ensure the proper functioning of the suctioning and conveying system.

To always guarantee a correct and flawless suctioning process, regardless of the “weight” of the material, Doteco provides two different models: SINGLE and COAXIAL LANCES.

SINGLE LANCE

It is the go to choice for suctioning of materials with a bulk density up to 0,5-0,6 kg/l.

The design is very simple, focused on performance efficiency.

Thanks to air inlets placed on the top, additional air can be conveyed within the suction hose, increasing the material flow fluidification.

PROS AND FEATURES:

  • It’s the simplest and less expensive solution.
  • Lightweight and easy to handle.
  • Additional air can be conveyed in the suctioning hose, thanks to eyelets placed on the upper part of the lance.
  • The additional air flow can be adjusted by covering or uncovering the eyelets with the suction hose.

 

 

AIR FLOW ADJUSTMENT:

Depending on how the hose is positioned over the eyelet, it is possible to adjust the additional air flow.

COAXIAL LANCE

Coaxial lances are indicated for materials with a bulk density from 0,8-1,0 kg/l or above, such as masterbatches or additives.

Thanks to the design, realized by utilizing two coaxial pipes, compared to the standard version it is capable of suctioning a larger and always constant air quantity; additional air is collected from the upper part of the pipe and then conveyed towards the tip (bottom part), where it mixes with the material.

Unlike the single lance, additional air flow is channelled directly where the material is aspirated, drastically reducing the risk of clogging.

PROS AND FEATURES:

  • Ideal for masterbatch and “heavy” additives (>0,8-1,0 kg/l).
  • Thanks to its design, a considerable amount of additional air can be channelled to support the material suctioning.
  • The air flow can be easly adjusted.
  • Under some circumstances, increases the efficiency of the loading system (compared to the single lance).

 

 

AIR FLOW ADJUSTMENT:

By untightening the ergonomic knob, the external coaxial pipe can slide, increasing or reducing the flow of additional air.

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