A question we regularly field is, “What makes the air compressor special on the JNCAIR, when the gauge only goes up to 60 psi – and we’ve seen other gauges that go up to 250 psi?” The scale of the gauge on an air compressor only tells part of the tale.
The output of an air compressor is primarily determined by volume, which is a function of both how fast I am pumping and how much am I pumping in each stroke. A quick analogy helps to illustrate the second part of that description. Take an inch stack of dimes, hollow out the middle and fill it with water. Now, take an inch stack of dollar coins, hollow out the middle and fill it with water. Which one has more water? The compressor in the JNCAIR has piston nearly the diameter of a dollar coin while the compressors on many competitive units have pistons with a diameter roughly equivalent of the size of a dime. The additional volume makes all the difference – it’s what allows us to fill a 16” car tire from flat in under 8 minutes.
But, if the compressor in the JNCAIR is so good, why does the gauge only reflect a maximum psi of 60? First, vehicle tires are typically inflated to 30-60 psi whereas smaller tires, like those found on bicycles, are inflated to higher psi. We specifically designed the gauge on the JNCAIR to allow accurate readings in the specific range used for vehicle tire inflation. This way, if you need to inflate to 33psi, the gauge will have enough detail to allow you to dial it in accurately.
Power and Convenience… that’s Jump-N-Carry