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Dosing unit for an extrusion process

Cases

A customer with suurDOS® multi-channel dosing systems in use on various production lines in Europe, Asia and America, wished to modernize their R & D dosing unit, and modify it to comply with the latest safety standards. Based on experience in the production environment, Suurmond designed a custom single-channel dosing unit complete with control system and data logging.

Dispensing a product that is subject to degradation (aging) due to air exposure.


The challenge

Within an extrusion process, this dosing unit dispenses a product that is subject to degradation (aging) due to air exposure. The dosing unit must therefore incorporate the necessary facilities to inhibit or prevent this degradation. The dosing unit is used to dispense products with a range of viscosities in a R & D department.

Our solution

The suurDOS® unit is equipped with two storage vessels that are fully heated.

Each vessel incorporates a nitrogen blanket above the contents to inhibit premature aging of the product.

Safety cover with viewing hole

The vessels can easily be filled with unmelted product through a special safety cover. This cover has an inspection port with sight glass, which can only be opened when the nitrogen line is disconnected.

The vessel is electrically heated to melt the solid product. An agitator starts automatically when the product reaches a certain temperature, ensuring a homogeneous temperature distribution throughout the contents of the vessel.

Safety cover with inspection port
Mahr gear pump ensures pulsation-free dosing

Wide range of viscosities

The dosing unit is equipped with an over-dimensioned Coriolis flow meter to enable dosing of products over a wide range of viscosities. However, this does mean that the dosage can deviate by up to 1% from the preset value, especially at low flow rates. This is a concession that the customer has willingly accepted.

The result

The dosing unit enables the customer’s R & D department to continue their research into the influence of additives on the extrusion process, with greater precision than was possible previously. The comprehensive data logging function of the control system simplifies the task of collection and analysis of results.

Features:

  • Nitrogen blanket
  • Selectable storage vessels
  • Electrical heating
  • Agitator for homogenous heating
Vessels and pipework of the suurDOS® unit are fully insulated

Suurmond supplies solutions to optimize your process and improve the quality of your end-product. Our specialists will be happy to advise you.

Let’s talk!

Let's talk!

Suurmond BV
The Netherlands
T +31 (341) 25 49 00 

Voltweg 2
8071 CZ Nunspeet
info.nl@suurmond.com

CoC 08142400
VAT NL815360800B01

Suurmond BV
Belgium and Luxembourg
T +32 (3) 54 44 070

Noorderlaan 109
2030 Antwerp
info.be@suurmond.com

Company no. 0440573109
VAT BE-0440.573.109

Suurmond UK Ltd
Great Britain & Ireland
T +44 (1386) 423 756

7e Enterprise Way
Evesham, Worcester
info.uk@suurmond.com

Registration no. 5113524
VAT GB 845 7137 10

Suurmond (France)
France
T +33 (474) 02 66 75

Parc Millésime, bâtiment 4
119 rue Michel Aulas
69400 Limas
info.fr@suurmond.com

VAT: FR59815325303
Registration no.: 59 815 325 303

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