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Weldy heat guns – Applications & use

Weldy heat guns – Applications & use

Posted on 9 September 2021

WKK offers three types of Weldy heat guns. Weldy, a Leister brand, is a renowned producer of, among other things, shrink equipment and is active in 80 countries worldwide. These heat guns can be used for a broad range of applications: from wrapping cars and burning off paint, up to shrinking heat shrink tubing. In this blog, we’ll take a closer look at using Weldy heat guns for shrinking heat shrink tubing. But how do you use these heat guns? And what are the differences between the different types of heat guns? Read it in this blog!

Shrinking heat shrink tubing using a heat source

The shrink temperature of heat shrink tubing differs per type, and varies from 65 °C up to 260 °C. Most types of heat shrink tubing have a shrink temperature between 110 °C and 135 °C. There are multiple ways to shrink heat shrink tubing, in order to shrink it: using a lighter, a soldering iron, or using a hairdryer. If you want to control the temperature of the used heat source more precisely, then your best option is using a heat gun. Using a heat gun, you can accurately set the temperature, helping you to reach an optimal result when shrinking heat shrink tubing.

How do you use a heat gun to shrink heat shrink tubing?

Keep in mind that, when shrinking heat shrink tubing, the piece of heat shrink tubing will also shrink in length, next to the normal shrinking in diameter. Normally, heat shrink tubing will at maximum shrink 10% in length.

After you have cut the heat shrink tubing in the desired length (keep the possible longitudinal shrinkage in mind!), place the piece of heat shrink tubing on the object on which you want to shrink it. Set the heat gun to the correct temperature and turn it on. Make sure that you move the heat gun, and therefore the airflow, along the piece of heat shrink tubing evenly. This makes sure that the heat shrink tubing shrinks evenly. Avoid direct contact between the heat source (the heat gun) and piece of heat shrink tubing – this can damage the heat shrink tubing.

Read more about how to use heat shrink tubing here.

Different types of Weldy heat guns

WKK offers three types of Weldy heat guns: the Weldy HG 330-B, the Weldy HG 330-S and the Weldy HG 330-A. Each type of heat gun has its own specific properties, which will be highlighted below.

Weldy HG 330-B

This heat gun type has two heat settings, enabling you to easily switch between two temperatures: 350 °C and 550 °C. In addition, the heat gun has two air stages. This heat gun has an ergonomic grip and comes with several accessories, such as a glass protection nozzle, a spoon reflector and an air inlet cover.

View the Weldy HG 330-B heat gun here.

Weldy HG 330-S

The HG 330-S is a powerful heat gun. In contrast to the HG 330-B, this heat gun has a fast, stepless temperature selection between 80 °C and 600 °C. This makes this type of heat gun exceptionally well suited for shrinking heat shrink tubing. In addition, the heat gun has two air stages. This heat gun has an ergonomic grip and comes with multiple accessories, such as a glass protection nozzle, a spoon reflector and a tubular nozzle. This heat gun is delivered in a handy suitcase.

View the Weldy HG 330-S heat gun here.

Weldy HG 330-A

The HG 330-A is het most powerful Weldy heat gun. The temperature can easily be set with intervals of 5 °C, ranging from 80 °C to 650 °C. The set temperature remains constant, due to the digital temperature regulation. This enables the user to, when shrinking heat shrink tubing, easily set and maintain the desired temperature. In addition, this heat gun offers five configurable memory locations for temperature and air stages. This heat gun has, just like the HG 330-B and HG 330-S, two air stages. This heat gun has an ergonomic grip and comes with multiple accessories, such as a wide slot nozzle, a tubular nozzle, a spoon reflector and a pressure roller. Delivered in a handy suitcase.

View the Weldy HG 330-A heat gun here.

View all of our Weldy heat guns here. Curious which heat gun is best suited for you application? Contact one of our advisors!