Twin screw pump design enables it to run at the widest range of speeds compared to any other positive displacement pump on the market.
Whether your pumping needs call for timing a product through a high pressure drop pasteurizer with a high viscosity liquid or simply transferring a shear sensitive slurry or emulsion, sanitary twin screw pump technology can meet your demands.
Rodem’s twin screw pump partner, Axiflow Technologies, Inc. revolutionized this established pumping technology with a sanitary version of the twin screw pump. This pump has set a new standard for a wide range of pumping applications. The Axiflow twin screw pump offers a viable solution to numerous difficult process problems often experienced with traditional positive displacement pumps.
The Axiflow Twin Screw design enables the pump to run at the widest range of speeds than any other positive displacement pump on the market. This capability enables one pump to be sized to handle a wide range of viscosities. Imagine one pump handling the duty of many!
With an all stainless steel wet end and bearing housing that is machined completely out of 316L billet stainless steel, the Axiflow twin screw pump can handle the widest range of temperature swings. With the Axiflow pump, there is no such thing as “hot clearance” and “cold clearance” rotors. The entire pump expands and contracts together.
The Axiflow Technologies STS Standard Series of pumps consists of four pump sizes. Each pump size has up to five different screw pitches. This gives you the flexibility to customize each pump specifically for your application. The smallest STSC50 size is only available in a C-face connection. The STS70 and STS90 are available in both C-faced connection or bare shaft with coupling. The largest pump, the STS125, is only available in bare shaft with coupling design:
All standard series pumps are available in standard 3A and EHEDG design as well as aseptic design. Pressure ratings on the standard series pumps range from 175 PSI to 350 PSI differential depending upon screw pitch.
*Axiflow DF High Pressure Series Pumps also available.
With each pump size Axiflow offers a wide range of screw pitches. The screw pitch is the distance from flight to flight. With tighter screw pitches the pump can handle higher pressures. With larger screw pitches, you can achieve higher flowrates and delicately handle larger soft solids.
The most unique aspect of the Axiflow Sanitary Twin Screw pumps is that they can run at speeds up to 4,000 RPMs. Typical rotary lobe, circumferential piston and progressive cavity pumps are limited to 600 RPMs. This ability to run at such a wide range of speeds enables The Axiflow Pump to perform process, as well as CIP.
The Axiflow Pump is capable of pumping the widest range of product viscosities (1 to 1,000,000 cps), operating at the widest range of pump speeds (up to 4,000 RPMs), and operating at the widest range of product temperatures (up to 425°F) of any other PD pump (twin screw or otherwise) on the market!
High suction capability
Ability to run dry for hours
Low shear pumping capability
Delicate handling of soft solids up to 1-5/8”
Ability to deliver a smooth, non-pulsing, repeatable product flow
Greatly reduce the wear on the pump and cost/need of spare parts
Highly viscous products like cake frosting and cold peanut butter that do not flow are a challenge for any pump. Other products that consist of a water-like liquid base with large soft solids can bridge and cause de-watering while pumping and then end up damaging the delicate solids.
The Axiflow twin screw hopper pumps “open-throat” hopper design for light liquid based products, adds to Axiflow’s wide range of solutions for the sanitary industry.
The Axiflow Technologies DF High Pressure Series is capable of discharge pressures up to 725 PSI (differential). The DF Series pumps are ideal for large high-pressure drop pasteurizers. Until now, whenever a process called for a high-pressure positive displacement pump, the only option processors had was to use a piston style pump. This type of equipment has a large footprint, is expensive, and is very maintenance intensive. Additionally, these pumps can cause significant pulsation.
The Axiflow DF High Pressure pumps provide a smooth, non-pulsing flow and are a fraction of the upfront and maintenance costs.
Count on Rodem and Axiflow pump specialists to help tackle your next pump challenge. We can customize the pump to meet your specific needs.
Rodem specialized in custom sanitary process fabrications and solutions. Discuss your full project needs with a Rodem team member to see how we can help you build the exact system you need.
Learn about how twin screw pumps can be used in the dairy, food & beverage and personal care & pharmaceutical industries, and the benefits and applications in each industry.
Twin screw pumps offer precise tolerances and the ability to pump a wide range of viscosities and temperatures, partnered with an extremely low cost of ownership make twin screw pumps a top choice for sanitary processors in food, beverage, personal care and other high purity industries.
Get an inside look at how Axiflow twin-screw displacement pumps perform both process functions and CIP duties while saving space and money for your process. See how they can be used for your application!
E-mail: [email protected]
Copyright 2023 Rodem Inc. All rights reserved.
