VSK Archive | LEHMANN INDUSTRIE

Agitated Nutsche Filter Dryer Filter plate lowering

March 9, 2024
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Filter plate hydraulic lowering of the Agitated Nutsche Filter Dryer DN1100 at the handover of the new machine to the customer.

This Filter Dryer has a diameter of the filtering plate 1100 mm and a total volume of 900 liters (cake volume 300 liters). Material of construction stainless steel AISI 316 L, ATEX execution.

Lab Ribbon Mixer Dryer for the Ghent University

December 20, 2023
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We have just delivered a laboratory conical ribbon mixer vacuum dryer with a fixed lid and the condenser on a stand to the University of Ghent in Belgium.

Specification of Equipment:

Surface in contact with the product made of stainless steel DIN WNr.4571/1.4404
Finished Ra <0.8 µm, incl. roughness measurement protocol
Heating jacket material stainless steel DIN WNr.4301, surface Ra <1.6 µm
Working temperature of the vessel 0 to + 300 °C
Working pressure of the vessel -1 to +1 barg
Total vessel volume approx. 4.3 L, working volume approx. 3 ltr
Spiral stirrer, stirrer shaft ø10 mm, for lab drive
O-ring flange seal of the container lid, Kalrez O-ring material
Lid mounted to the frame
Dismountable vessel without the bottom drain, could be adapted for discharging by overturning
Lid sockets:
- 1x KF 25 (DIN 28 403)
- 3x KF50 (DIN 28 403)
Magnetic drive 180 W, manually changeable rpm 20-60/min
Heating/cooling system connected to Dryer by insulated hoses Huber made
Condenser with tubes, 0.15m2, material 1.4404, condensate flow to the tank 1 ltr
Passport incl. material certificates

Mobile nutsche filter for the University of Bayreuth

December 19, 2023
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Our company has become a recognized partner for the supply of equipment to European R&D centers and university laboratories. One such example is the custom-made design, manufacture and delivery of a mobile nutsche filter DN300-25 L for the University of Bayreuth.

TECHNICAL SPECIFICATION

Working temperature 100 °C.
Operating pressure -1 / + 3 bar
Cylindrical vessel with domed base and domed hinged lid
Diameter of the cylindrical part of the filter body 300 mm, height of the cylindrical part 400 mm
Removable sieve with handles, perforated base with filter plate attachment
Total filter volume approx. 30 L
Filter surface area 0.04m²
Material of construction: stainless steel AISI 316
Inner surface roughness (in contact with product) Ra < 0.8 μm, including roughness measurement protocol
Outer surfaces brushed
Filter on 3 legs, with 3 swivel wheels with brakes

Height of the filter gap flange above the floor 600 mm
Design and manufacture according to PED 2014/68/EU

Other Lab Ribbon Mixer Dryer Visualization

December 12, 2023
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Visualisierung eines weiteren konischen 4-Liter-Labor-Bandmischtrockners für die Glovebox für einen Kunden in Belgien. Das System besteht aus dem Trockner, der Vakuumpumpe, dem Wärmetauscher und einem Kondensator auf einem gemeinsamen Rahmen.

Lab Ribbon Mixer Dryer Visualization

December 11, 2023
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Visualization of a 4 L Lab Conical Ribbon Mixer Dryer intended to the glovebox for the Ghent University in Belgium. The system consists of the dryer, the vacuum pump, the heat exchanger, and a condenser, on a common frame.

New Filter Dryer DN1100

November 21, 2023
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This Tuesday we handed over a new filter dryer to the customer. This one has a diameter of the filtering plate 1100 mm and a total volume of 900 liters (cake volume 300 liters). Material of construction stainless steel AISI 316 L, ATEX execution.

Nutsche filters for USA

July 28, 2023
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Two nutsche filters DN250-5L with ASME certification are ready to be shipped to Philadelphia / USA. Thanks to the company Polymer Reactor Technology GmbH for the excellent cooperation.

TECHNICAL DATA:

Static Nutsche Filters (NF) with manually removable lid
Operating temperature 32 – 302 °F (0 – 150 °C)
Operating pressure 0 – 100PSI (0 – 7 bar)
Design pressure 0 – 150PSI (0 – 10.5 bar)
Cylindrical vessel with domed bottom and domed lid
Diameter of the cylindrical part of the filter body 250 mm, height of the cylindrical part 200 mm
Diameter of the cylindrical part of the insert basket 220 mm, height of the cylindrical part 180 mm
Removable 5 L filter basket
Material in contact with the product AISI 316Ti stainless steel, other parts AISI 304
Internal surface roughness (in contact with product) Ra < 0.8 µm, including roughness measurement report
Outer surface unified by brushing
Filter on 3 legs, possible on mobile structure with 3 swivel wheels with brake
Design and manufacture according to ASME

Vacuum Dryer Test Trial at VSK Pardubice

February 2, 2022
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On Monday 31.1. we have provided at our Czech partner and manufacturer VSK Pardubice a test trial with material samples for (and with participation of) one international chemistry corporation, by use of a Vacuum Vertical Ribbon Mixer Dryer.

The fact that we can represent this company on the German market makes us very proud. There is no challenge that the company VSK would not be able to cope with.

Many thanks to Mr. Bilek and his team.