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At EJOT in Bad Laasphe, five SAFETEC pump sets precisely dose aggressive acids and alkalis from VARIBOX IBCs into electroplating baths – hermetically sealed and fully automated

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Engineering Excellence Since 1950

For more than 75 years, FLUX has been setting standards in pump technology through innovation, quality, and engineering expertise. Discover our heritage, our values, and our vision for the future.

VISCOPOWER F 570 with anti-rotation device

For applications with increased vibration loads, the VISCOPOWER F 570 is now available with an integrated anti-rotation device. A design feature—a built-in tab—prevents the motor from rotating.

VISCOFLUX

Drum Emptying Systems

Drum emptying systems are used wherever high-viscosity media need to be emptied continuously and gently from lidded drums. VISCOFLUX systems achieve a residual quantity of less than 1% in the drum.

VISCOFLUX lite is suitable for higher-viscosity media that are just barely flowable, while VISCOFLUX mobile S also handles highly viscous, non-self-flowing media—on a mobile, wheeled process unit.

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Applications and Uses

VISCOFLUX mobile S

Mobile solution for highly viscous, non-self-flowing media.

VISCOFLUX lite

For pumping higher-viscosity fluids that are barely flowable

VISCOFLUX lite Ex

Pumping of high-viscosity fluids in Zone 0/1 hazardous areas.

Overview

VISCOFLUX drum emptying systems are based on FLUX eccentric screw pumps with a follow-up plate and process seal. The follow-up plate descends onto the medium due to negative pressure—the flexible process seal prevents medium from remaining on the drum wall.

All systems achieve a residual volume of less than 1% in ISO-lidded drums and handle viscosities up to 500,000 mPas.

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Less than 1% remaining

Nearly complete emptying of the barrel – maximum utilization of raw materials

Up to 500,000 mPas

High-viscosity to non-self-flowing media (up to grease class 3)

Gentle handling

VISCOPOWER eccentric screw pumps deliver low-shear, low-turbulence flow that preserves the structure of the material

Mobile to the Barrel

VISCOFLUX Mobile S can be transported to the job site without a crane or forklift and can replace several stationary units.

Easy to Clean

Stainless steel process unit (IP 66) that can be cleaned with a water jet. The motor, pump, backing plate, and process seal can be quickly removed.

Explosion-proof versions available

VISCOFLUX lite Ex for Zones 0/1 – ATEX-certified

Applications

Typical applications and areas of use for FLUX eccentric screw pumps.

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High-viscosity fluids

Convey paste-like substances up to 100,000 mPas—gently and without pulsation—with the VISCOPOWER F 580.

Pharmaceuticals & Cosmetics

Creams, ointments, petroleum jelly, mascara—gentle removal without altering the structure.

Paints & Varnishes

Raw materials, coating compounds, solvent-based pastes—including explosion-proof versions (Zone 0/1).

Adhesives & Sealants

Construction adhesives, fixing compounds, casting compounds—viscosity up to 500,000 mPas.

Lubricants

Soft greases up to NLGI Class 3 – can be drained almost completely from lidded drums.

Chemical Industry

High-viscosity base materials and ingredients – with VISCOFLUX lite or mobile S.

Drum Emptying in Practice

Applications in the industrial, cosmetics, pharmaceutical, and food production sectors demonstrate how FLUX drum emptying systems efficiently support processes.

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Tomato paste concentrate is hygienic and has a residual moisture content of less than 1%

VISCOFLUX mobile S pumps FDA-compliant, triple-concentrated tomato paste from conical drums with in-line liners—with residual levels of less than 1%.

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Automatic and virtually complete filling of industrial greases

VISCOFLUX lite, equipped with an F 550 S eccentric screw pump, enables the automatic filling of high-viscosity industrial greases from ISO drum containers.

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Hygienic Dispensing of High-Viscosity Ointments

Hygienically transfer ointments and creams from 200-liter drums—with VISCOPOWER and VISCOFLUX mobile S.

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Efficiently Filling Vaseline from Barrels

High-viscosity petroleum jelly is metered using VISCOFLUX mobile S through a heated line and reliably filled into mixing tanks.

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VISCOFLUX pumps fluids with viscosities up to 500,000 mPas

VISCOPOWER eccentric screw pumps and VISCOFLUX mobile S units can reliably pump even non-flowable media.

Glue

Paints and Varnishes

Oils

Lip gloss

Ointments

Toothpaste

Molasses

Tomato paste

Juice concentrates

More media examples

VISCOFLUX lite

Media that are just barely fluid
Soft greases up to NLGI Class 2 (e.g., machine greases)
Filler
Raw materials for paints and coatings
Solvent-based mixing pastes
Coating compounds (primers)
Adhesives / Construction adhesives / Fixing compounds
Corrosion protection gels

Viscoflux Lite Ex

Media that are just barely fluid
Soft greases up to NLGI Class 2 (e.g., machine greases)
Filler
Raw materials for paints and coatings
Solvent-based mixing pastes
Coating compounds (primers)
Adhesives / Construction adhesives / Fixing compounds
Corrosion protection gels

VISCOFLUX Mobile S

Media without inherent flow behavior
Media that outgas or react with oxygen
Oils up to oil class 3
Media in which neither air pockets nor foreign particles are permitted
High-viscosity base materials and ingredients
Tomato paste concentrate
Paste-like spice preparations
Nut creams and pastes
Chocolate & caramel
Fruit concentrates
Creams and ointments, e.g., zinc oxide ointments
Vaseline
Mascara & lipstick
Hair and body care products

Knowledge and Technology

Selecting the right VISCOFLUX system depends on the viscosity of the medium, the drum type, and the requirements for mobility and cleanability. The following sections explain the sequential plate principle and the differences between VISCOFLUX lite and mobile S.

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VISCOFLUX Drum Emptying Systems

VISCOFLUX drum emptying systems operate using a follow-up plate that is placed on top of the material in the lidded drum. As the FLUX eccentric screw pump conveys the material, it creates a vacuum beneath the follow-up plate—causing the plate to lower and follow the falling liquid level. The flexible process seal at the edge conforms to the drum wall, ensuring that virtually no material is left behind.

The pump, follow-up plate, and drive can be combined

The material is conveyed in a hermetically sealed manner—with minimal shear and turbulence, and without contact with ambient air. VISCOFLUX lite uses a pump centering crossbar for ISO lidded drums and can be installed in minutes.

VISCOFLUX mobile S is a self-contained system on a mobile process unit with battery-powered lifting—for varying drum types and the highest viscosities. The pump, motor, follow-up plate, and process seal are individually designed to suit the medium and process conditions.

A Comparison of Drum Emptying Systems

An overview of the most important specifications and features—for selection and comparison.

Feature	VISCOFLUX lite	VISCOFLUX lite Ex	VISCOFLUX mobile S
Max. flow rate	Depends on the medium, 50 l/min max	depending on the medium, 30 l/min	depending on the medium, 50 l/min
Max. discharge pressure	8 bar	8 bar	15 bar
Max. viscosity	500,000 mPas	500,000 mPas	500,000 mPas
Residual amount	< 1%	< 1%	< 1% (< 2% for inliners)
Drum size	ISO-compliant drum	ISO-top drum	ISO-lidded drum / Standard+ conical
Mobile (on wheels)	–	–	✓
Explosion-proof	–	✓	–
FOOD / FDA / 3-A	–	–	✓ (EC 1935/2004, FDA)
Ideal for	High-viscosity media	Flammable, hazardous area	High-viscosity, non-flowable
	View product	Go to product	Go to product

_{The maximum flow rate is a test bench value,}_{measured with water at 20 °C at the pump’s discharge port, without accessories (hose, dispensing nozzle, flow meter). The flow rate that can be achieved in practice is lower and depends on the specific application, the properties of the fluid, and the pump configuration. Specifications are for an axial rotor, unless otherwise noted.}

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We determine the medium, flow rate, viscosity and operating environment.

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Service & Support

Documents for planning, operation and servicing
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