Hygienic twin screw pumps

Packo ZS twin screw pump

Packo hygienic twin screw pumps

The Packo twin screw pump ZS series is a versatile positive displacement screw pump that combines the benefits of rotary lobe and centrifugal pumps in one hygienic, efficient design. Engineered for applications requiring the transfer of both high-viscosity liquids and thin cleaning fluids, this two-in-one pump offers pulsation-free operation—ensuring gentle, consistent product handling.

Whether you’re processing delicate foods, pharmaceuticals, or cosmetics, the Packo ZS twin screw pump helps you achieve maximum efficiency, hygiene, and flexibility in your production line.

WORKING PRINCIPLE

The ZS twin screw pump operates using two intermeshing screws that rotate synchronously without contact. As the screws turn, they create sealed cavities that move the product smoothly from suction to discharge.
This design ensures:

  • Linear, pulsation-free flow
  • Low shear handling, preserving product quality
  • Constant pressure build-up even with varying viscosities

The identical geometry of the pumping chamber prevents product squeezing, maintaining integrity even for liquids containing solids.

APPLICATIONS

Packo ZS twin screw pumps are ideal for hygienic and gentle transfer of liquids in industries such as:

  • Dairy: Milk, yoghurt with fruit, cream, and desserts
  • Beverage: Breweries, juices, and syrups
  • Pharmaceutical and cosmetics: Creams, gels, ointments
  • Food processing and bakeries: Pastes, doughs, fillings, and chocolate

Thanks to its wide speed range, the ZS pump can serve as both a process pump and a CIP pump, eliminating the need for an additional centrifugal unit.

FAQs

Can the same pump be used for both product transfer and CIP?

Yes, the Packo ZS Twin Screw Pump can handle both, eliminating the need for a separate CIP pump.

What makes this pump hygienic?

It features stainless steel 316L construction, smooth surfaces (Ra < 0.8 μm), and is certified to 3A and EC1935/2004 standards.

Is it suitable for products with solids?

Absolutely. The gentle, pulsation-free operation ensures solids like fruit pieces or nuts remain intact.

Can it handle high-viscosity fluids?

Yes, the Packo ZS positive displacement screw pump handles thin liquids through highly viscous pastes with consistent, gentle flow.

Where do you deliver and what are your estimated shipping times?

Global Pumps understand how crucial quick delivery is. That’s why we strive to ensure speedy delivery no matter where your site is in Australia.

Guideline for shipping times

Below is a guideline of how long it takes to ship our products to some of Australia's major cities. Of course, we can also deliver elsewhere around the nation, so if your location isn't mentioned don't worry, just talk to the team at Global Pumps!

Locations Shipping Time Range
Melbourne 1-2 Days
Sydney 2-3 Days
Brisbane 2-4 Days
Perth 2-4 Days
Adelaide 1 Day
Kalgoorlie 3-5 Days
Mt Isa 3-5 Days

PRODUCT INFORMATION

The Packo ZS series screw pumps is designed to handle a wide range of viscosities—from light liquids to thick pastes—without compromising product integrity. Its hygienic construction, certified to 3A and EC1935/2004 standards, ensures easy cleaning and full compliance with sanitary requirements.

The twin screw pump’s bi-directional operation and broad speed range make it ideal for both product transfer and CIP (clean-in-place) applications, reducing the need for separate pump systems.

Key benefits

  • Built for hygiene: Certified to 3A and EC1935/2004, with smooth stainless steel surfaces for fast, thorough cleaning. These hygienic screw pumps are perfect for sensitive applications.
  • Two-in-one design: Handles both product transfer and CIP, reducing system complexity.
  • Adaptable performance: Wide speed range and optional screw designs for fluids of varying viscosities.
  • Gentle on product: Pulsation-free, low-shear operation maintains texture and consistency.

Technical specifications

Parameter Specification
Max flow 270 L/min or 100m3/h
Max temperature 150 ºC
Max viscosity 1,000,000 cP
Max discharge pressure 12 bar
Speed Up to 3000 RPM
Material (wetted parts) Stainless steel 316L
Surface finish Ra < 0.8 μm
Optional features Heating/Cooling jacket, various screw options
Enquire here for more information or to request a quote: