Page 276 - Electrician - TT (Volume 2)

ELECTRICIAN - CITS

Food Mixer

Objectives: At the end of this lesson you shall be able to:
• explain the food mixer and its features
• state the maintenance and service procedures of mixer
• list their common problems, causes and suggest remedial measures.

Food mixer
It is an electric domestic appliance which is used to mix, juice, grind and blend the fruits and food grains.
A medium sized universal motor is used in it. Fig 1 shows an exploded view of a mixer.

Fig 1

Features of the food mixer
The motor housing differs widely depending on the manufacturer. Special care to be taken for vibration-free
running. Safety features such as overload trip, jar mounting lock (fixing) and proper lid closing are included in the
appliances.
An AC universal motor is housed in the base. The jar contains the cutting knives which is the heart of the blending
action. Fig 2 shows a schematic diagram of a typical mixer.
Fig 2

A food mixer power rating ranges from 100 to 750 watts. The revolution of the food mixer is 3000 to 14000
revolutions per min. The desired speed is selected on the control switch.

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CITS : Power - Electrician & Wireman - Lesson 101-103