It is a common mistake to view a washer with a high pressure rating as being a better option. A pressure washer should be selected based on what it is expected to clean and not on its pressure rating alone. Whilst using cold water under pressure is adequate for most cleaning jobs hot water does give extra cleaning power for stubborn dirt like grease and grime. Some cold water washers can be used with hot water perhaps supplied by a separate heater for added cleaning power. The maximum inlet temperature indicates the level of hot water the machine can take.
If an independent power source is needed which is not constrained by the electrical supply then a diesel or petrol engine model is the answer. This type of pressure washer can be more powerful than electric machines and is ideal for off site work. These machines are often mounted in a tubular steel frame for robustness.
A wide range of industrial and commercial floor sweepers. Floor sweeping machines use a system of rotating brushes which sweep the surface debris back into a waste container which can be removed and emptied. Filtration systems ensure that there are no unwanted particles left hanging in the air.