EPS extruder pump
single screw

Key Features

Simple high pressure pumping of viscous fluids and pastes

Works with inhomogeneous mixtures of solids and liquids

Customised screw and barrel combinations available to suit each application

Pulsation-free pumping

Temperature-controlled rotor and stator

Easy cleaning with hygienic design options and CIP

EPS extruder pump
single screw

Key Features

Simple high pressure pumping of viscous fluids and pastes

Works with inhomogeneous mixtures of solids and liquids

Customised screw and barrel combinations available to suit each application

Pulsation-free pumping

Temperature-controlled rotor and stator

Easy cleaning with hygienic design options and CIP

Overview

The EPS is based on decades of Maelstrom's extruder design expertise and uses state-of-the-art single screw extruder design to deliver an efficient, reliable, pulsation-free pump for viscous materials.  EPS pumps can be fitted with optimised barrels for increased pressures, where required, and the screw and barrel can be liquid-heated or cooled.  Electric heating can also be provided for higher temperatures.

As a simple and flexible pump for viscous fluids, the single screw extruder is often overlooked.  With decades of development in the design of optimised screw and barrel combinations, Maelstrom has refined the single screw extruder into an effective and efficient pump for many high viscosity applications, especially for higher pressures (a traditional weakness of single screw extruders).  Custom screw geometries can be fitted to suit individual applications or different processing conditions and extruders can also be made to meet EHEDG and 3A hygiene requirements. 

Want to know more?

Contact us today to discuss your application or to book a free demo or trial!

Built-in pressure relief

Using a specially-designed sprung output flange, the EPS can provide integrated pressure relief to eliminate the risk of system over-pressure.  For many high viscosity pumps, pressure relief is a major concern because conventional pressure relief valves can easily clog and jam.  Maelstrom's design integrates sprung pressure relief directly into the flange so that it cannot clog and can also be easily cleaned and inspected after activation.  Contact Maelstrom for more details.

Details

Description

The EPS is a single screw extruder that is optimised for high viscosity fluid pumping.  Variable screw geometry for feed, compression and metering zones provides excellent material control and liquid-cooling or heating of the screw and barrel are possible, for thermal regulation.  Using a carefully-designed barrel, the EPS is able deliver viscous pastes, polymers and doughs at pressures up to 500 bar with pulseless flow.

Designed for easy disassembly and cleaning the EPS can be used in food and pharmaceutical applications and flameproof options are available for use in hazardous environments.

Applications
Benefits
Specifications
Technology

Size range

EPS25

Max. flowrate
50 kg/hr

Max speed: 250 rpm


Motor power: 0.25kW

EPS40

Max. flowrate
250 kg/hr

Max speed: 250 rpm


Motor power: 0.75kW

EPS65

Max. flowrate
1000 kg/hr

Max speed: 250 rpm


Motor power: 3kW

EPS110

Max. flowrate
5000 kg/hr

Max speed: 250 rpm


Motor power: 15kW

Note that the machines listed here represent standard sizes offered.
Customised versions and non-standard sizes are available to suit each application.

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