What Are Pressure Washer Trucks?
Pressure Washer Trucks are vehicles equipped with a high-pressure pump and water tank for cleaning by spraying water at high pressure.
They are capable of more powerful cleaning than the household high-pressure washers used for cleaning gardens, etc., and can be used for different purposes by changing the nozzle on the end of the vehicle. By using the nozzle, it is possible to clean narrow places where people cannot enter.
The high pressure jet of water allows for fast and efficient removal of heavy dirt. If the water pressure is too high, it may damage the surface to be washed, and if it is too low, the dirt cannot be removed well.
For water pressure, there are cases where the maximum discharge pressure is indicated and there are cases where the normal discharge pressure is indicated.
Usage of Pressure Washer Trucks
Pressure Washer Trucks are mainly used for cleaning, but they can be used for a wide range of purposes.
- Cleaning of road gutters
- Disaster restoration work
- Sludge collection under piles in civil engineering works
- Dredging of foundations
- Cleaning and recovery of landscaping work
- Dredging of general rivers
- Cleaning of building rooftops and underground water tanks
- Recovery of sludge from filtration beds of water and sewage systems
- Cleaning of complex shaped exterior surfaces, walls of ships and buildings, and interior and exterior surfaces of tanks
- Cleaning of heat exchanger tubes
- Paint removal from hard paint and lining coatings
- Dust suppression during concrete repair
- Chemical cleaning
- Circulation cleaning
- Spray cleaning
etc.
Principle of Pressure Washer Trucks
The structure of Pressure Washer Trucks can be divided into three main parts: the high-pressure pump, the water tank, and the nozzle.
The high-pressure pump is a positive displacement pump such as a reciprocating pump or plunger pump.
These pumps change the volume by reciprocating the piston and push the liquid from the suction side to the discharge side.
High pressure can be obtained by extruding by changing the volume, and it is also possible to change the discharge amount.
The volume of water that can be used for cleaning depends on the capacity of the water tank, so it is important to pay attention to this when selecting a product.
The nozzle can be replaced depending on the application, and the water pressure can also be adjusted by changing the nozzle diameter.
The tip of the nozzle is designed to smoothly inhale and discharge dirt, thereby increasing work efficiency.
Pressure Washer Trucks use a pump to pressurize the water and a narrower nozzle to increase the water pressure.
Working with Pressure Washer Trucks
High-pressure cleaning is performed at various sites, including exterior wall and site cleaning at construction sites, cleaning of tanks, pits, and piping for maintenance, suction of sludge, and stripping of painted surfaces.
Pressure Washer Trucks are highly mobile and can be moved from site to site, so contractors who undertake cleaning work own several of them, and they are especially deployed at steel mills and large chemical plants.
Pressure Washer Trucks may be dispatched independently, but most of them have a cleaning water tank capacity of about 2 tons, and some of them are equipped with powerful suction capability.
The nozzle operators must be equipped with protective equipment to prevent self-inflicted injuries to their hands and feet, and must control the pressure so as not to damage the objects to be cleaned. If the contaminant is hazardous, care must be taken to prevent it from scattering.
Difference from Home-Use High-Pressure Cleaners
Recently, home-use high-pressure cleaners are sold at home centers. The most powerful type for home use has a capacity of 90 kg/cm2, while some Pressure Washer Trucks have a capacity of 200 kg/cm2. pressure cleaners for commercial use, but they are very heavy even when placed on a cart, making them difficult to maneuver when moving them around the factory premises.