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Village-Type Fruit Juice Extractor

Mr. Maitrie Thongswang
Agricultural Engineering Research Institute
Department of Agriculture
Chatuchak, Bangkok 10900, Thailand
E-Mail: maitrie@doa.go.th Tel: 662-940-5791, 2003-05-01

A village-TYPE fruit juice extractor can be used to produce various kinds of juices. The juice can be used for local consumption, for sale in the village, or for small-scale distribution outside the village. If the juice can be sold, the extractor can create work and income for local groups of farmers.

Advantages of the Technology

  • The parts of the extractor which come into contact with the juice are made of stainless steel. They are easily removed for cleaning.
  • The machine can separate seeds and fibrous residues from the juice. It can be used for all types of fruit, including guavas, pineapples, carambola (wax apple), oranges, grapes, melons, and even tamarind.
  • The single-phase electrical motor is versatile, and can be used for other household needs.
  • The machine parts can be made locally. The machine costs little to make, and is much cheaper than similar machines imported from abroad (Fig. 1).

Components of the Machine

The fruit juice extractor consists of three parts.

  • Cutting blades to reduce the fruit into small pieces. These can be either a spiral scraper or small blades.
  • The part of the extractor used for squeezing the fruit and separating the residues consists of a sieve, a blade, a screw, and a compartment to hold the residues.
  • To meet power requirements, the extractor uses an electrical motor (1 horsepower, single phase, 220 volts).

Application

  • The first step is to sort the fruit, and select only good-quality fruit. The selected fruit are cleaned, peeled and cut into pieces.
  • The prepared fruit is then placed in the extractor (Fig. 2). This squeezes out the juice and separates it from the solid residues. The extractor can process 200 - 250 kg of fruit in one hour.
  • Small particles of pulp are filtered out by a centrifuge filter with a capacity of 50 liters/hour (Fig. 3).

Precautions

The operator must be careful when he or she is feeding pieces of fruit into the machine. The action of the blades pulls the fruit into the drum, and hands can easily be drawn into the machine as well.

Index of Images

  • Figure 1 Diagram of Fruit Juice Extractor

    Figure 1 Diagram of Fruit Juice Extractor

  • Figure 2 Operating the Fruit Juice Extractor.

    Figure 2 Operating the Fruit Juice Extractor.

  • Figure 3 Operating the Centrifuge Filter to Remove the Particles of Pulp from the Juice.

    Figure 3 Operating the Centrifuge Filter to Remove the Particles of Pulp from the Juice.

  • Table 1 Quantities of Fruit Juice after Processing

    Table 1 Quantities of Fruit Juice after Processing

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