Margarine machines

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Product group description margarine machines

Machines for the preparation of margarines such as table margarine, shortening and puff pastry. 

The process

Margarine is made by mixing a water phase and a fat phase to create an emulsion. This emulsion is cooled to below melting point using a scraped-surface heat exchanger, also referred to as a crystalliser. Cooling the product increased the pressure in the heat exchanger. Depending upon the product this increased from thirty to over one hundred bars for special products.

Range description margarine equipment

A line consists of a minimum of a high pressure pump, crystalliser and pin mixer with the following extensions as options:

• Pasteuriser; plate, tube of scraped-surface heat exchanger, placed before or after the high pressure pump
• Invertor; for special products and products with a low fat content
• Rest tube
• Reworker smelter; heat exchanger or as tank
• Mixing system with pumps and buffer tanks
• CIP unit (Cleaning in Place)

The capacity of the crystalliser depends upon the product and is stated in surface area in square metres. Maximum pressure varies by crystalliser.

The capacity of the process installation should always be 10% higher than the capacity of the filling machine. The excess is continuously returned to the mixing tank as rework product.

Main margarine machine manufacturers

• Gerstenberg Agger (Denmark) now SPX
• Schröder (Germany) now SPX
• Cherry Burrell Votator (USA) now SPX
• Merksator and Unitator (NL) now Het Stempel
• Chemteck (UK) now TMCI Padovan

Options in addition to normal refurbishment

Honing, rechroming, grinding or complete replacement of cylinder barrels. The scrapers can also be removed. Modernisation of the high pressure seal. Vacuuming of unit and nitrogen-filled delivery. Assembly of the various components into a complete line with an overall control system.

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