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Since the extraction arms bring a great flexibility, convenience and also ergonomics for operators, they are used in metal working industries, especially in welding-shops, more and more frequently.

As a rough guide, there are mainly two different types of extraction arms that covers 80 to 90 per cent of all extraction systems in metal working industries;

1- Extraction arm WITH internal joints:

In this type of arm, the mechanism that keeps the extraction arm in equilibrium in all positions, is integrated inside the air-path. Therefore, this type of arm has the following disadvantages;

  • High pressure loss due to the mechanism standing against the process air flow inside the flexible hose.
  • The maintenance work (i.e. cleaning, tightening needs…etc.) is much more difficult and cost more time for the operator.
  • The interval of the maintenance work is also much more frequent. Since the mechanism stays inside the process-air flow, it can get dirty much easier and in a short while. This is a bad disadvantage, especially for the welding of oily parts.
Extraction arm WITH internal joints
Extraction arm WITH internal joints

2- Extraction arm WITHOUT internal joints:

In this type of arm, the mechanism that keeps the extraction arm in equilibrium in all positions, is totally placed out of the air-path, onto the tube-pieces. So the process-air that flows inside the tube does not interfere this mechanism. Therefore, this type of arm offers just perfect advantages as follows;

  • Very low pressure loss thanks to its special design providing a smooth and uninterrupted air flow inside the tube and hose parts. This means a very efficient extraction with the lowest possible pressure drop.
  • The maintenance work (i.e. cleaning, tightening needs…etc.) is very simple: No time loss for the operator.
  • The interval of the maintenance work is also much lower, because the mechanism is taken out of the process-air flow. As a result, this enables to keep the mechanism always clean.
Extraction arm WITHOUT internal joints
Extraction arm WITHOUT internal joints

VANTERM offers its new EK-2 model extraction arms in different sizes, to provide its customers always state-of-the-art extraction solutions.

Application: EK-2 Model extraction arms installed in a welding-shop.
Application: EK-2 Model extraction arms installed in a welding-shop.

 

VANTERM: Passion for excellence in Clean Air Solutions.