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BCH (Rochdale) Ltd.

Spring Place, Millfold, OL12 8DN Whitworth, Lancashire
United Kingdom of Great Britain and Northern Ireland
Telephone +44 1706 852122
Fax +44 1706 853629

Hall map

interpack 2020 hall map (Hall 1): stand A27

Fairground map

interpack 2020 fairground map: Hall 1

Our range of products

Product categories

  • 03  Machines and equipment for the production of confectionery (Chocolate confectionery, sugar confectionery, gum)
  • 03.01  Complete lines for the production of confectionery (Chocolate confectionery, sugar confectionery, gum)
  • 03.01.17  Production of liquorice confectionery

Production of liquorice confectionery

Our products

Product category: Production of liquorice confectionery

Co-Extrusion – Liquorice/Sugar Paste

BCH also offer a solution for the production of sugar paste which comprises of a sugar mucilage cooker and a Z-arm duplex trough mixer. The resultant sugar paste supplies the side flow extruder in order to produce the combination extrusion of sugar and liquorice paste.
The mucilage cooker is a steam-jacketed vessel with an anchor type stirrer which can be complemented by a high shear mixer. The combination of these two mixers together with the steam heating, results in a fully homogenous syrup mix.
The vessel is load cell mounted with microprocessor and recipe controls. The syrup is transferred to the Z-arm duplex trough mixer by a positive displacement pump and jacketed pipework. Icing sugar is fed into the mixer, and together with the sugar syrup the resultant mix produces a sugar paste. The Z-arm duplex trough mixer is robustly designed to give a thorough mixing action, prior to tipping into empty mobile bins.
The mobile bins are transferred to the extruder and mechanically tipped into the feed hopper of the sugar paste extruder.
The addition of a specially designed die head is used for the production of liquorice and sugar paste in a number of combinations.

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Product category: Production of liquorice confectionery


In a confectionery context, the BCH Extrusion system is the method of forcing a mixed (and often cooked) mass through a die that’s engineered to a desired shape. This profiled shape is then usually cut to a desired length using a BCH guillotine.
Primarily designed to handle liquorice, starch gels, fruit twist and sugar pastes, these extruders can also handle viscous food pastes and gels.
• High Boil Syrups
• Caramels
• Liquorice
• Fudges
• Nougat/Praline
• Gels
• Fat Based Products
Side Flow Extruders
The extruders are manufactured with 75, 130, or 200mm diameter screws to achieve throughputs of between 50-1,500 kg/hr via a side flow die configuration. The side flow dies will extrude over widths from 300-1200mm at right angles to the screw axis. Side flow dies can be designed to extrude sheets, ropes and twisted ropes in solid, hollow or co-extruded form.
The side flow design provides a cost-effective, high output design with good uniformity of product weight across the die width. The uniformity of the product weight is achieved by careful design of the screw across the die mouth; regulating/throttling plates/screws on the dies and for some products, a positive displacement pump on each rope.
The extruders are usually mounted on rails to position the dies over a retracting nose piece on the BCH high-performance cooling tunnels. For die changing and cleaning, the extruders can be wheeled offline.
The main barrel of the extruder is water jacketed to minimise start up times, maximise extrusion efficiency and in the case of the twin screw mixer extruder, provide heat transfer.

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About us

Company details

BCH Limited was established in 1835, and has developed a world-wide reputation in process engineering for the food and confectionery industries. BCH specialise in Turnkey systems for the manufacture of jams, marmalades and preserves, liquorice, 100% Fruit, marshmallow, caramel, cook/cool technology for chilled and frozen meals, sauces, fillings and fruit toppings.

In-house BCH have their own dedicated Electrical Engineering Division offering bespoke services in the application, design, manufacture and installation of complete control systems for all their processes.

To provide an extra resource to their customers BCH has invested in a state-of-the-art Innovation Centre, run by food scientists, process engineers and supported by a wealth of in-house process knowledge. This is designed to help customers improve productivity, profitability and bring a new and better product to market more quickly.

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Company data

Target groups
  • Food
  • Confectionery products
  • Beverages