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Discharge System

How it Works

Transfer non-flowable products out of the mix vessel quickly and efficiently.

Any process is only as fast as its slowest operation. ROSS Discharge Systems used with change-can design mixers significantly improve production speed, efficiency, cleanliness and plant safety.

Benefits of Choosing a ROSS Discharge System  

What does a ROSS Discharge System do?

A Discharge System eliminates wasted hours of scraping heavy or sticky materials from a mix vessel. With push-button simplicity, the system can automatically discharge several hundred gallons of product in minutes — into bulk containers, filling or packaging equipment, or any downstream process. Yield from every batch is maximized because typically, only a thin layer of product remains on the vessel bottom.

How does a ROSS Discharge System work?

A Discharge System consists of a platen that is lowered hydraulically into a mix vessel. The platen is fitted with an O-ring which rides against the vessel wall. As the platen pushes down on the batch, sidewall surfaces are virtually wiped clean by the O-ring. Product is forced out through a valve on the side or center bottom of the vessel, or through the top of the platen. The platen may be jacketed to maintain batch temperature during discharge.

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Features at a Glance

Why choose a ROSS Discharge System?

  • product feature

    Semi-continuous Processing - Same-size vessels from multiple mixers can be rolled to a Discharge System for emptying, and then rolled away for cleaning as the next vessel is positioned underneath the platen. This flexibility can boost production on several process lines, all working with a single Discharge System. The discharge platen may be wrapped with a disposable plastic liner to keep it clean and always ready for the next vessel.

  • product feature

    Safety - A Discharge System improves plant safety because it lowers the risk of injury while scraping heavy materials from the mix vessel. It also reduces operator exposure to a hazardous batch, minimizes the release of harmful vapors into the plant atmosphere and decreases the amount of cleaning solvents required after every mixing cycle. For additional pinch point protection, an optional Lexan/stainless steel hinged door can be supplied around platen with a dual-contact safety switch to disable platen movement until the doors are closed.

  • product feature

    Customizability - Discharge Systems are built in either standard floor mount or elevated designs, from 1 pint through 500 gallons capacity. For mix vessels equipped with a cove plug valve, different size adaptors are available for direct filling into syringes and cartridge tubes. For more accurate filling of containers by weight, auto-tare scales, PLC-based metering controls and other special customizations may be supplied. Sanitary models are built with stainless steel enclosures for use in critical and hygienic operating environments.


Discharge systems are available in a variety of designs to meet your requirements.  Standard features include:

  • Rugged steel support frame
  • Hydraulically operated platen for accurate discharge control
  • Hydraulic power-pak which can be mounted and plumbed, or supplied for remote installation
  • Stainless steel type 304 platen
  • Mix can positioning devices

Discharge Systems Spec Sheet

Photo Gallery

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  • Discharge   Hfd 40 S Without Can
  • Discharge   Customizability[1]
    • Additional Resources

      • Fast and efficient discharge of viscous, sticky mixtures

        Platen-style discharge systems used with change-can design mixers can significantly improve production speed, efficiency, cleanliness and plant safety.

      • Perfect batch-to-batch reproducibility in your mixer.

        In order to produce consistently high quality mixtures, a repeatable batching and cleaning procedure must be established. But the best time to ensure batch-to-batch reproducibility is before the mixing equipment is even purchased. This bulletin outlines some useful considerations for mixer selection.

      • Turnkey mixing systems

        Turnkey systems range from simple laboratory mixers equipped with one or two auxiliary equipment to more complex packages capable of high speed, multi-recipe production. It helps to work with an experienced supplier capable of providing a full range of testing, engineering, design and manufacturing services.

      • Improve safety in your mixing room.

        This bulletin discusses some practical and technical solutions for improving safety in the mixing area.

      • 5 ways to reduce labor costs in your mixing operation

        Labor costs account for a significant portion of mixing costs. This bulletin presents five basic tips for optimizing labor costs and improving productivity in the mixing operation.

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