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Belt Filter Presses

Specifically designed for Municipal and Industrial use. The Tefsa range of belt filter presses encompasses over 30 years of development and sales in a vast field of dewatering and sludge treatment applications – over 2000 units have now been sold world-wide.

The low energy bills and frugal polymer consumption of belt dewatering systems appeals to the cost conscious, without compromising on performance or reliability. This, combined with very low operator input requirements make belt filter presses ideal for today’s streamlined processes.

Tefsa’s wide experience has allowed them to tailor the range so that clients can precisely target their budget and performance requirements, from the smallest installation where space is at a premium – to the largest where performance and throughput count.

4 Model ranges are available covering all key applications, from municipal sludge, through paper and chemicals to specialist applications.

Within these ranges you can mix and match using a variety of frame materials, belt widths up to a massive 3.0m and the possibility of integrating gravity dewatering where particularly thin sludge is encountered – and of course these machines are available in enclosed format to satisfy the most rigorous odour containment requirements.

The range of belt thickeners is available as stand-alone machines with not only a range of belt widths, but also of table lengths – giving a throughput range from a tiny 2m3/hr to a useful 150m3/hr.

TEFSA Food Grade Belt Presses – specifically designed for food processing

TEFSA belt presses are used for the continuous separation of liquid from different solid-liquid mixtures and are specifically designed and constructed from materials – entirely of food grade stainless steel, thereby providing high hygienic standards and long term durability.

All models are ergonomically designed for easy access during operation and cleaning. A pneumatic belt-control system ensures for reliable operation with minimal operator input.

With capacities ranging from 1 to 40 tons/hr of raw feed material they are ideally suited to the following:

  • Extraction of juice from fruits and vegetables
  • Dewatering of brewer grains
  • Extract from algae
  • Coffee grounds
  • Extract from herbs

Functional Description

The product is transferred from a feed tank and spread uniformly and continuously onto the lower belt.  In the wedge zone, the upper belt exerts a constantly increasing surface pressure on the product, thus building up a stable filter cake as the separated liquid escapes.

In the pressing zone, the dewatering process begins in the first stage via the L- profiled roller which provides a fast discharge of the separated liquid to both sides. In a second stage, the product is pressed via multiple press rollers with decreasing roller diameters. By applying increasing pressure and shear stress, the product is dewatered quickly and efficiently.  As an option, rollers are installed for linear and peripheral pressure to enable further optimisation of the machine’s efficiency.

In order to maintain the high pressing capacity, the belts are continuously cleaned using high pressure spray nozzles.