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Double K Dryers Model Comparison

The Airmax™ Or the Extreme™ Dryer?

Distinctions between the Airmax and the Extreme dryer models.

The motor/fan assemblies in the two products are different with the Extreme model having more powerful 5.7 inch diameter motor/fan assemblies and the Airmax having less powerful 5.1 inch diameter motor/fan assemblies. It must be understood here that power is defined in this circumstance as motor generated torque. So, while each motor/fan assembly produces approximately 123 CFM free air (on the bench with no resistive elements at sea level) the 5.7 inch unit (Extreme) does so at a much lower speed (22,500 rpm) as compared to the Airmax at approximately 32,000 rpm. The amount of air pressure or vacuum (measured in water lift) that each unit produces in a free air condition and with the resistive elements introduced (dryer housing, filters, hoses, novels etc.) are also roughly equivalent. The primary distinction is that the larger motor fan assemblies (in the Extreme) achieve these objectives without having to work so hard which causes the motor to last longer. The current density at the brush to commutator contact point is substantially higher with the Airmax unit which causes the brushes and commutator to wear more rapidly which requires more frequent brush changes and a parallel reduction in general motor life.
There is a modest increase in practical air volume (measured at the nozzle) for the Extreme over the Airmax and a slight increase in temperature for the Airmax over the Extreme. This causes the units to have roughly equivalent drying capability with the Extreme having a marginal advantage in penetrating dense undercoats and the Airmax having a slight advantage in colder more humid conditions.

Accordingly, the primary distinction between the two products is generally motor related life expectancy. The Extreme does come with a 10 foot hose as opposed to a 6 foot hose and an extra nozzle as well. The Extreme also outweighs the Airmax dryer by several pounds. 



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Love it

The best dryer I have ever owned. The customer service was even better, I was notified when it came to shipment progress and didn't have to check every now and then. Keep up the great work!!

Hale doors

These are incredibly great doors, been using for years. Had addition done so needed another. Was great I could use amazon account to pay, makes it so much easier to process order.

Perfect

We installed the Hale pet door when we build our home 13 years ago. It truly is the best dog door I’ve ever seen. So after 13 years of two dogs going in and out all day we needed a replacement flap both inside and out. Now it looks just like the day it was first installed and we are very pleased that we could get the same replacement flap. Great service.

Endemic 3002

This dryer is awesome.

Double MIM Variocage

Awesome product. Our giant breed puppies would alway whine when taking trip in car with regular travel kennels. In the Variocage they are totally silent and go to sleep right away. I think the bumper cover which folds up over the back to block direct sun light also makes a difference as they are not confused when looking out by the trees flying by or other cars behind us.
I erroneously did not order spill proof water bowls nor a large ramp at the time and realized it after the fact. All the equipment is well engineered as you would expect from the Swede’s.