What Size Air Hose For Impact Wrench? Here’s The Guide.

What size air hose for impact wrench?

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Air impact wrenches are known as air-hungry tool that consumes a vast amount of compressed air while running. Air consumption rates depend on their sizes.

Air hoses create a safe path for supplying air from the compressor to the air impact gun. There are three familiar air hoses available, which are 1/4, 3/8, and 1/2 inch in size. And, they are made with varying types of materials to adapt to different work environments.

Best Hose For 3/8, 1/2, And 3/4 in Impact wrench. – Flexzilla Air Hose

Flexzilla Air Hose for impact wrench
  • Build material: ‎Hybrid Polymer
  • Extreme all-weather flexibility (-40° to 140°F)
  • Durable and abrasion-resistant outer cover
  • Max. working pressure at 70°F: 300 psi
  • Includes bend restrictors to reduce wear and tear

An in-depth guide for choosing air hoses for impact wrenches

Air hoses are measured by their inside diameter. The larger the diameter, the greater chances for higher airflow.

Keep in mind another essential fact. The larger the distance between the air compressor and tools, the greater the chances of dropping air pressure. And the shorter distance between compressor and tool ensures maximum air pressure and minimum pressure drop.

That’s the reason experts suggest choosing as much as possible short-length air hoses for air-hungry tools.    

Air hose size and their air delivering chart

Air hose size and their air delivering chart

What size air hose for 1/2 impact wrench?

Most of the 1/2 inch high torqued air impact wrench required airflow above 8 cubic feet per minute(CFM). And the air pressure should be set at 90PSI.

According to a 1/2-inch high torqued impact wrench air consumption rate, a 3/8 size air hose can deliver adequate airflow if the hose length is between 25 to 35 feet.

If your jobs require above 35 feet length air hose, you must consider 1/2 inch diameter hose for decent airflow without less air pressure.

what size air hose for 3/4 impact wrench?

Despite having a bigger compressor and a powerful 3/4-inch impact wrench, you may fail to get the job done if the air hose fails to supply air adequately.

Here’s the solution, use a 1/2-inch air hose. It can handle the impact gun by delivering high amounts of air. If the air hose length goes above 40 feet, you must consider the 3/4 sized hose.

What size air hose for 1 inch impact wrench?

Obviously, 1-inch impact wrenches are familiar as the thor hammer or beast. You must ensure proper size compressor unit. Besides them, you must ensure proper size air hose for supplying air into it adequately.

High torqued 1-inch impact wrenches consume above 45CFM airflow on full-load.

According to air consumption, you should have an air hose that can transport air without dropping pressure.

Expert suggests 3/4 sized air hose for a 1-inch impact wrench. It can transport up to 70CFM air if the hose length is less than 50 feet. If you need to extend the distance above 50 feet, you should consider t 1-inch air hose to get optimum performance.

You may use 1/2-inch air hose if the distance between the compressor to the tool is under 10 feet.

What type of air hose is best for impact wrench?

Here’s the reason, Why experts recommend rubber air hoses for air-hungry tools? Such as air sander, air impact wrench, impact ratchets.

There are four different types of air hose available, which is rubber, hybrid, PVC, and polyurethane. Rubber air hoses are most familiar for their sustainable performance for a long time. They are constructed with synthetic rubber, with braided yarn. Rubber hoses are the most user-friendly for their higher kink resistance and easy to coil capability.

Besides, rubber air hoses can survive in harsh environments without losing flexibility, they can tolerate temperatures ranging from -25 to 148 degrees Fahrenheit. It’s an another attribute that makes them most familiar also.

How to connect impact wrench to air compressor?

I hope you got your desired air hose size. Now, it’s time to connect the air hose with the compressor and tool.

Here’s the 3 easiest way to connect the impact wrench to the air compressor.

1. Choose the right air hose fittings.

There are various types of quick connectors available, and they have different sizes. It’s challenging to choose the right one.

You must keep in mind three facts when choosing air hose fittings.

The first one is the style of the quick coupler, and the second one is the air displacement size. The third fact is the connection type.

Quick Coupler Style:

Quick coupler available in 10 styles, and they denoted by the letters, which is L,A,D,M,T,AA,H,P,G-0.125″, and G-0.375″. And they differ based on their air displacement capacity.

The G style plug and coupler uses for supplying large amounts of air. As an example, pneumatic sanders impact wrench, buffer polisher, etc.

Basic flow size: The basic flow size indicate the airflow capacity. There are three flow sizes available for couplers. The sizes are 1/4″, 3/8″, and 1/2″.

To get optimum performance from the impact wrench, experts suggest the G-type coupler kit. The basic flow size depends on your impact wrench size. If the impact wrench size is 1/2 inch, it consumes above 10 CFM air; a 1/4″ size G-style coupler kit is enough according to its air consumption.

A 1/4″ basic flow size G-style plug can move air approx above 80 cubic feet per minute (CFM).

2. Attach quick coupler kits.

The second step is effortless to do, attach one female coupler at one of the ends of the hose. And attach the male plug on the other ends of the hose.

In the third step,  attach a male plug to the air inlet port of the impact wrench. All most done.!!

3. Connect the air hose with the compressor and impact wrench.

Start the compressor and fill the tank in max pressure.

The next step, adjust the output pressure by twisting the compressor pressure control knob. Press the trigger of the impact wrench.