Pneumatic impact wrenches

What are pneumatic impact wrenches and how do they work?

Pneumatic impact wrenches are very useful tools for tightening and loosening all types of nuts in the shortest possible time. One of the main advantages of a pneumatic wrench is its speed and efficiency, especially when working with rusty bolts and nuts that are difficult to remove. Pneumatic air wrench technology is essential for mechanics and DIY enthusiasts who need a fast tool that allows them to work for long periods of time.

 

How many HP does a pneumatic wrench need?

The pressure required by a pneumatic impact wrench can range from 3 to 8 bar, depending on the air impact wrench. At Ocioexpres, we recommend a pressure of 6.3 bar for the vast majority of pneumatic impact wrenches.

 

What type of compressor do I need for a pneumatic wrench?

First, we need to know what type of pneumatic impact wrench we are going to use and what we will use it for. To help you start looking for the right air compressor, at OcioExpres we recommend a few tips to help you choose the right one:

- Check the L/min or L/s rating of your powerful pneumatic impact wrench.

- If the air impact wrench's flow rate is based on a full work cycle, such as 50% or 60%, you need a compressor with a higher airflow capacity.

- If you use different air impact wrenches at the same time, you need to add together their L/min or L/s ratings.

- As a final tip, if you need a continuous air supply, you need an air compressor that can run continuously for as long as required.

 

How do you choose a pneumatic impact wrench?

First, we need to decide which type of impact wrench to choose—pneumatic, electric, or battery-powered—depending on the space where the work will be carried out. In a workshop, there is no doubt that a compressed-air impact wrench is an essential tool.

 

First, we need to look at the drive size: these can be 3/8", 1/2", 3/4", or 1". Generally, the smallest and least powerful are the 3/8" models, as these are lightweight impact wrenches that are ideal for small machinery. The best-selling model is the 1/2" wrench, the typical air impact wrench for tightening and loosening car wheel nuts. This type of wrench weighs between 2 and 4 kg, and its tightening torque ranges from 300 to 800 newtons. Medium-large professional pneumatic impact wrenches are 3/8" models, with tightening torques ranging from 500 to 1,300 newtons. Finally, there are heavy-duty impact wrenches, specially designed for high-torque jobs such as truck wheels and heavy machinery; these are better known as truck impact wrenches. This type of air impact wrench uses sturdy, large, heavy 1" sockets weighing between 9 and 25 kg, so a lifting arm is usually needed when working with these pneumatic impact wrenches. The tightening torque of this type of truck impact wrench typically ranges from 1,100 to 4,000 newtons.

At OcioExpres, we recommend different types of pneumatic wrenches depending on how you plan to use them. Here are a few tips to help you make the right choice:

- Choose according to the required tightening force

- Choose a size that is comfortable for you to work with

- Make sure the air consumption is suitable for your compressor