In modern production environments – particularly in the pharmaceutical, chemical and food industries – mixing processes often generate dust, aerosols or other potentially hazardous substances. Without effective containment measures, these substances can endanger the health of staff or compromise product quality.

Designed for use up to OEB Level 5

Gebrüder Lödige Maschinenbau GmbH is responding to this and has introduced the FKM Containment, the first mixer in its range specifically designed for use up to OEB Level 5. This new machine design is based on the Ploughshare® Mixer developed and established by Lödige, which enables highest mixing accuracy in shortest possible mixing time.
The machine has been specially adapted for containment applications by optimally complementing the mixing system with suitable feeding and discharge systems, a two-stage filter system, a flexible isolator for machine access and modifications of the seals.

The features in detail

The use of split butterfly valves from renowned manufacturers enables dust-free product feeding and discharge up to OEB Level 5. Alternatively endless foil liner or bag transfer systems can be used.
Enclosing the inspection flaps within flexible isolators fitted with glove ports allows for interventions, visual inspection or minor manual adjustments inside the machine without breaching containment.
The modification of dynamically loaded seals (e.g. for mixing elements, choppers or discharge door) provides the system with permanent protection against potential leaks, even in highly stressed areas. Machine exhaust air is treated via a two-stage filter system, comprising a pneumatic cleaning mechanism for the first filter stage and a HEPA filter as the second filter stage.

A containment-compatible sampler enables taking representative samples during the mixing process without opening the system. The samples are discharged using single-use systems. Product quality can thus be monitored without exposing operating personnel to any risk. The use of a partially or fully automated WIP or CIP system for machine cleaning ensures automated and reproducible machine cleaning, eliminating the need to open the machine.