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Powder Dosing Solid Feeding

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The LAMBDA DOSER powder feeder is a unique programmable pump for free-flowing solid substances. It allows the automatic or continuous addition of powders, powdery and crystalline substances without a spoon.

This laboratory instrument, consisting of a dosing unit coupled to a digitally controlled stepping motor, allows the constant and reproducible dosing of solids. As the DOSER powder feeder offers different control options, it can also be used in automatically controlled processes.

The LAMBDA DOSER solid feeder will modernize your laboratory.

Properties of the LAMBDA DOSER powder dosing instrument Dosing rate

The digital dosing speed range from 0–999 allows a precise and reproducible solid flow rate (e.g. 50 mg/min to 50 g/min for NaCl).


30 pairs of dosing speeds and dosing times can be easily programmed.


Approx. 200 ml glass vessel (corresponding to 250 g NaCl, 200 g NaHCO3 or 150 g sucrose). This capacity is optimal for most laboratory applications. A larger vessel of approx. 1 l volume is also available.


With the DOSER the additions of powdery chemicals become reproducible, safe and conform to modern safety and quality rules (GLP), as it is required for the laboratory manipulation of chemicals. The hermetic construction of the DOSER allows safe handling of dangerous and toxic solid substances.

Assembly and cleaning:

The dosing apparatus has been constructed for easy assembly and cleaning. The Doser can be coupled to all common glass recipients having standard ground fittings NS 29/32 or SVL threaded connectors. All parts in contact with the powdery substances are made of chemically resistant materials.

Small dimensions and robust construction:

Special attention has been paid to minimizing the dimensions of all parts of the powder DOSER. The DOSER can be adapted easily to complex laboratory installations. The robust construction and the use of high quality materials assure a long lifetime of the DOSER.


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