Autofroth is a unique system designed to be cost effective and user friendly. Up to one third the price of conventional equipment, the system only requires a 240v electrical system, compressed air and bottled nitrogen. Because there are no pumps or mechanical mixers, moving parts are reduced to an absolute minimum. This not only cuts maintenance and down time costs, but makes for a simple operating system.

Two cylinders are pre-filled with the components A and B. These are connected to the mixing gun via heated lines which carry both thermostats and temperature gauges. The materials are driven to the mixing chamber by nitrogen pressure negating the need for pumps and controlling the environment for the two chemical components. Flow controllers regulate the material quantities being delivered to the mixing tube, various sizes of flow controller are available to suit customer needs. Material quantity is regulated by digital timer, the time set is the time period the equipment dispenses material. The timer also has a cumulative function, which records the total period of time material has been dispensed therefore giving an indication of material used, and material left within the containers.

Because the system is sealed, and the materials are pre-blended, it is possible to use gaseous blowing agents. These give two distinct advantages over conventional systems, firstly because the system is frothed it rises 25% at point of dispense. This means less sturdy jigging is required to restrain the rising foam, secondly lower densities are achievable ensuring cost effective filling and low thermal conductivity.

Cylinder sets are most commonly 500kg (nominal) or 2000kg (nominal). The 500kg sets are ideal for the small user, the sets can be mounted on a trolley or pallet which makes the unit versatile in its mobility, needing only a 240v supply and a compressed air connection. The 2000kg sets can run several guns, solid or flexible lines can be installed from which separate gun units can be mounted. This allows different output stations in areas remote from the main chemical storage area. Because the cylinders are filled at the factory, once empty they are exchanged for full units. Any material residual in the containers can then be credited eliminating wastage, drum disposal is also avoided.