http://www.techradar.com/news/best-rugged-laptops

If your job entails moving around a lot, or visiting busy worksites and factories, then you'll want to invest in a rugged laptops.

The best rugged laptop will have a solidly-built body that can withstand drops, or even pressure being placed upon it - such as if something heavy falls on top of it. It should also ideally have some protection against liquids, dust and high and low temperatures.