High-Pressure Pressure Washers (180 – 250 bar)

It is needed for more demanding work, such as removing encrustations, cement residue and stubborn grease from paved areas, vehicles and plant. A machine between 180 and 250 bar can cope where a medium-pressure one leaves ingrained dirt. Check, however, that the surface can withstand such a strong jet, because some materials are damaged by it.

Hot water helps dissolve grease and oils, so it is the right choice for workshops, agricultural machinery and professional kitchens. In this collection you will find Kärcher HDS hot-water models, such as the HDS 10/21-4 St EU-I and the HDS 8/18-4 CXA. For general dirt and heavy washing a cold-water model is enough, such as those in the 10 series from Annovi Reverberi.

For jobs where there is no mains electricity, engine-driven pressure washers are used. In this collection you will find engine-driven Wortex models, such as the LW 18/250-E and HW 18/250-E, as well as models from Pramac and Oleo-Mac. Check the engine type and the fuel required on the data sheet, and choose according to the use and the refuelling available on site.

A three-phase machine suits places with an industrial three-phase supply and intensive, continuous use, such as a workshop or washing installation. It offers stable power and a long life under load. For example the collection includes the Nilfisk MC 5M-280/1100 PE, whose power supply must be checked on the data sheet. Have an electrician check the line before connecting the machine.

For industrial floors you need rotating or flat-jet lances, suitable nozzles and rotating brushes to remove grease and encrustations. Lances and extension wands are also available to reach distant areas. The collection includes a wide range of Makita accessories, so check that the fitting is compatible with the machine before buying.

For hardened cement, work with a concentrated jet and keep the lance at a distance, moving it evenly. Wet the surface first and let the specific detergent act, if the manufacturer recommends it. Do not hold the jet on one spot for long, because this can damage the surface or the concrete underneath.

A 180-250 bar jet can cut the skin even at short range, so never aim it at people or at yourself. Wear protection for eyes, hands and feet, and do not work on pressurised hoses or fittings. Switch the machine off and release the pressure before any intervention. Risk assessment is required under D.Lgs. 81/2008 (the Italian Legislative Decree on workplace safety).