Features and Principles of Vacuum Generators

Vacuum generators

Machine that generates a vacuum from compressed air.

Features

• Provides a simple means of generating a vacuum using factory compressed air.
• Uses a vacuum pad to permit various workpieces to be conveyed by suction.

Used for conveying workpieces by suction.

Mounting of front window glass

Useful info

Principles of the vacuum generator
The principle of a vacuum generator is that a vacuum is generated by feeding in compressed air, and the compressed air is squeezed by a nozzle, discharged at high speed and flows into a diffuser. During high speed jet flow, pressure decreases and a vacuum is generated. A nozzle and diffuser structure is created to obtain a high level of vacuum pressure through high-speed jet flow, with differences in shape and dimensions determining the vacuum pressure, displacement (intake volume) and air consumption.

Main points

• Check the required level of vacuum pressure.
• Check the suction flow rate.
• Check the consumption flow rate.
• Check the discharge method.
  • Open air release: discharged to atmosphere via discharge holes
  • Concentrated discharge: releases discharge from a fitting connected to a discharge port (in cleanrooms etc.)
• Check the supplied pressure.
• Check the tube diameter and screw size.

PDF list