Wednesday, 9 September 2020

What is Car washer machine / Pressure Washer machine? , sekhpost

By on September 09, 2020


Bike or car wash machines is being used most by garages and some personal bike/car holders.

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It is a high pressure water sprayer machine which pressurizes water from a small hole to clean your vehicle and can also be used to give it shower using spray options in it. 
There are generally availaible car washer machines in Nepal are either made in China or India.
On the comparison of prices , chinese car wash machines sales are on top. You may get Chinese car
washer machines ranging from 10,000 NRS to 160000 Nrs generally.


            Want to buy a Car Washer ? Click here

  Car/ bike wash machine is available in Sheikh Enterprizes Biratnagar , Nepal

A pressure washer is a high-pressure mechanical sprayer used to remove loose paint, mold, grime, dust, mud, and dirt from surfaces and objects such as buildings, vehicles and concrete surfaces. The volume of a pressure washer is expressed in gallons or liters per minute, often designed into the pump and not variable. The pressure, expressed in pounds per square inch, pascals, or bar (deprecated but in common usage), is designed into the pump but can be varied by adjusting the unloader valve. Machines that produce pressures from 750 to 30,000 psi (5 to 200 MPa) or more are available.

It is important that the water supply be adequate for the pressure washer connected to it, as water starvation will lead to cavitation and damage of the pump elements. Be sure your water source can provide the gallons per minute the pump requires.

The basic pressure washer consists of a motor (either electric, internal combustion, pneumatic or hydraulic) that drives a high-pressure water pump, a high-pressure hose and a trigger gun-style switch. Just as a garden hose nozzle is used to increase the velocity of water, a pressure washer nozzle creates high pressure and velocity.

Different types of nozzle are available for different application. Some nozzles create a water jet that is in a triangular plane (fan pattern), others emit a thin jet of water that spirals around rapidly (cone pattern). Nozzles that deliver a higher flow rate lower the output pressure. Most nozzles attach directly to the trigger gun.

Some washers, with an appropriate nozzle, allow detergent to be introduced into the water stream, assisting in the cleaning process. Two types of chemical injectors are available — a high-pressure injector that introduces the chemical after the water leaves the pump (a downstream injector) and a low-pressure injector that introduces the chemical before water enters the pump (an upstream injector). The type of injector used is related to the type of detergent used, as there are many chemicals that will damage a pump if an upstream injector is used.

Washers are dangerous tools and should be operated with due regard to safety instructions. The water pressure near the nozzle is powerful enough to strip flesh from bone. Particles in the water supply are ejected from the nozzle at great velocities. The cleaning process can propel objects dislodged from the surface being cleaned, also at great velocities. Pressure washers have a tendency to break up tarmac if aimed directly at it, due to high-pressure water entering cracks and voids in the surface.

Most consumer washers are electric or gasoline-powered. Electric washers plug into a normal outlet, are supplied with tap water, and typically deliver pressure up to about 2,000 psi (140 bar). Gas powered washers can deliver twice that pressure, but due to the hazardous nature of the engine exhaust, they are unsuitable for enclosed or indoor areas. Some models can generate hot water, which is ideal for loosening and removing oil and grease.


At extreme high pressure, water is used in many industrial cleaning applications requiring the removal of surface coatings and for dust-free cutting of some metals and concrete. For exterior applications, gas powered washers provide greater mobility than electric ones, as they do not require use in proximity to an electrical outlet. For indoor applications, electric washers produce no exhaust and are much quieter than gas or propane washers.

The majority of pressure washers nowadays connect to an existing water supply, like a garden hose, but some models store water in an attached tank. Usually there is an on/off button that controls the water stream and many models allow you to adjust the water pressure.


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