SoliDos™-Screw Dosing Device

The SoliDos™ screw dosing device is particularly suited for the dosing of small quantities of small structures such as powders and crystals. Also materials which have poor flow characteristics which tend to clump, such as magnesium sulphate, can be safely dosed.

A sticking together of the feed mechanism due to rising steam is more easily prevented, as the outlet nozzle is comparatively small. The dosing is not carried out intermittently but rather continuously.

The screw dosing device can be directly attached to an NS29 connecting piece and ideally matches the reactor construction due to its slim design. The rotational speed may be set from 0.01 to 200 rpm. This results in an appropriately large range for the dosing rate.

The SoliDos™ screw dosing device is operated via a control unit which is suited for stand-alone and remote operation. Remote control is possible via serial or analogue interfaces.

Nitrogen rinsing connections may be provided as an option.

The SoliDos™ is constructed of resistant materials. The parts which are in contact with media in the standard version are all made of stainless steel.

LabDos®-vm and -gm control units are both available for volumetric and gravimetric dosing. Alternatively, gravimetric dosing can be carried out using a LabDos®-vm in conjunction with an automation system or a UniDos™ dosing controller.

The Advantages

  • The dosing of crystals and powders
  • Feeding under pressure an in a vacuum
  • Precise feed of small amounts
  • Continuous feed
  • Large dosing rate range
  • Very low space requirement, extremely easy assembly
  • May be fully dismantled for cleaning
  • Optional gravimetric dosing
Specifications/Type 200 1500
Dimensions (W x H x D) approx. 187 x 407 x 101 mm approx. 173 x 534 x 89 mm
Connection NS29/32
Weight approx. (kg) 5 6
Minimum Dosing rate approx. * (cm³/min) 1
Maximum dosing rate approx. * (cm³/min) 10
Maximum dosing quantity (cm³) 200 1.500
Grain size (mm) 0,5
Housing material V4A Edelstahl 1.4571
Dosing apparatus material gehärteter Stahl oder Keramik
Preassure range -0,5…+0,5 bar
Interfaces RS-232, optional analoge Schnittstelle, 0…5 V, 0/4…20 mA
Scope of delivery Dosierer mit Anschlusskabel für ein Steuergerät
LabDos®-vm Control Device for Volumetric Dosing

The LabDos®-vm control device provides the functions required for volumetric stand-alone operation of the SoliDos™ sold matter dosing device.


Further Information on this Device

Product code Description
IF-P-SOLIDOS-SCREW-ST-200 SoliDos™ screw dosing device – basic device, V4A stainless steel dosing unit, volume 200 cm³
IF-P-SOLIDOS-SCREW-ST-1500 SoliDos™ screw dosing device – basic device, V4A stainless steel dosing unit, volume 1,500 cm³
IF-P-SOLIDOS-SCREW-CER-200 SoliDos™ screw dosing device – basic device, ceramic dosing unit, volume 200 cm³
IF-P-SOLIDOS-SCREW-CER-1500 SoliDos™ screw dosing device – basic device, ceramic dosing unit, volume 1,500 cm³
IF-P-SOLIDOS-SCREW-HTT Electric heating element for the heating of the connecting piece for the prevention of condensation
IF-P-SOLIDOS-SCREW-KF Cold trap against condensation in the connecting piece
IF-P-SOLIDOS-SCREW-IN Inerting connection for SoliDos™-screw sold matter dosing device
IL-P-LABDOS-VM LabDos®-vm control unit for volumetric stand-alone dosing operation
IL-P-LABDOS-GM LabDos®-gm control unit for gravimetric stand-alone dosing operation
IP-P-LABDOS-AE Option of analogue interface, 0…5 V, 0/4…20 mA