Some key factors that contribute to the long-lasting nature of scroll air compressors include:

1. Compact, simple design: Scroll compressors have fewer moving parts than other compressor types, such as reciprocating or rotary screw compressors. This simpler design reduces wear and tear, leading to greater reliability.

2. Minimal friction and heat generation: The scroll's unique spiral-shaped compression mechanism generates less friction and heat compared to other compressor designs, reducing stress on the components.

3. Lubrication system: Scroll compressors typically have an efficient lubrication system that helps minimize wear and extends the lifespan of critical components like the scroll set.

4. Quiet operation: Scroll compressors operate at relatively low noise levels, indicating less vibration and stress on the machine.

5. Maintenance requirements: Scroll compressors generally require less routine maintenance than other types, further contributing to their longevity.

It's important to note that the actual lifespan of a scroll air compressor can vary depending on factors such as the operating environment, maintenance practices, and the specific application. Proper installation, regular maintenance, and following the manufacturer's recommendations can help maximize the lifespan of a scroll air compressor in continuous operation.