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High Performance Sprayers

Sands Agricultural Machinery

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SAM Unifog

Redesigned and updated for the application of sprout suppressants and biocides to ware potatoes and many other fumigation applications.

Pest and disease control in both closed and open air sites and plantations.

The new Thermal Fogger incorporating a direct drive blower unit, Briggs and Stratton 16hp 'V' twin engine, combustion chamber and fog head temperature sensors, fuel and chemical safety cut offs.

Available either as a free standing caster mounted unit, palletised cage, road trailer mounted unit.

SAM Minifog

SAM Unifog has developed a smaller version of their highly successful Unifog machine.

The envisioned use for this Minifog would be for the fumigation of storage areas, poultry houses, auditoriums and ships holds, not only with pesticide but also disinfectant for the control of bacteria.

The Minifog is a highly portable machine mounted on castors for easy manoeuvrability and weighs less than 50kg. Heat is generated by a propriety burner unit running on diesel fuel: additional air is provided by a large duct fan. Both items are electrically operated.

Compressed air dispenses chemical via a Venturi nozzle directly in front of the hot air outlet. This means there is no pump or metering system in contact with the chemical other than the nozzle. Cleaning is therefore extremely easy.





Engine Capacity

Fuel Tank Capacity

Fuel Consumption

Fog Heat Temp Range

Blower Capacity  

Chemical Solution Pump


Chemical Output


Safety Features

1150mm including caster wheels as shown

850mm (1000mm over handles)


340kg Dry

12kw ‘V’ Twin (16hp), air cooled, electric start

42.5 litres (9.5 gallons imperial)

8 litres/hour @ 350ºC Fog head temperature

250ºC - 750ºC c/w Flame trap

Up to 500 cubic metres/h

Self priming, Run dry, 6 litres/min. Output adjustable,provides chemical agitation

Typically 1 lpm (3 lpm max) with droplet sizes instantly variable down to 0.5 microns  

Burner Safety Lockout system - Temperature sensitive
Engine/Combustion chamber fuel cool off delay
Low level fuel tank with visible sight gauge
Manual fuel shut-off tap on tank for transportation
Solid pipework on fuel/chemical lines
Machine tested to PMB specification by Silsoe Research Institute  

Unifog Full Specification

Maximum Size



Electric Power



Air Consumption


1500L x 500W x 900H



110v 5A

0-0.75 lpm depending on viscosity


0.1 cubic metres/min at 4 Bar for chemical pump Generally stainless steel

Machine tested to PMB specification by Silsoe Research Institute

Minifog Full Specification