Radio Frequency Processing in the Food Industry

Radio Frequency Drying is a simple precise process and is in common use in the food industry with proven processes available for a wide range of applications such as:

Post bake drying and moisture control.

Preheating of dough and cake mixes.

Rapid heating of tube fed products for both pre-cook and pasteurisation/sterilisation requirements.



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Process Advantages

Reduces Checking - uneven stresses in the product are eliminated as a result of evening the product moisture profile

Product Colour Control - in the RF process, allows colour and moisture control to be separated

Energy Savings - unlike conventional equipment the efficiency of the high frequency oven is only marginally reduced at low moisture levels

Avoids Pollution - there are no bi-products of combustion

Increased Production - throughput of a typical oven line can be increased by as much as 50% on certain products without an increase in overall plant length.

Floor Space Savings - efficient heat transfer results in faster product transfer and reduced oven length

Rapid and Even Heating - of doughs

Improves Efficiency - of conventional baking lines

Automatically Compensates - for variations in product moisture

Automatically profiles for uniform moisture content

Eliminates Centre Bone - increases shelf life


Design Features

Sanitized ovens produced from stainless steel

Stainless steel fabrication of both generator and conveyor assembly available as an option.

Fully screened generator/oven available to comply with current emission regulations (including EN55011 and FCC title 47 part18)

Complies with health and safety requirements (including OSHA29CFR 1910.97, ANSI/IEEE C95.1-1992 AND UK NRPB guidelines)

Applicator systems available to accommodate the processing of monolayer, and beds of products

Integrated generator cooling system

Various conveyor bands to suit a range of processes, which meet hygiene standards including F.D.A. (USA)

PLC control with fault diagnostics

Integrated systems for centralized overall plant control

High speed arc detection unit


Further Optional Features

Belt washer system to avoid flavour contamination

Automatic product levelling device for the bed height control Conveyor systems to AC