Gasoline Pressure Washer 5.5 HP 150 Bar – Portable Petrol High Pressure Cleaner
The gasoline pressure washer model in this range pairs a 5.5 HP petrol engine with a 150 bar pump, giving a self-contained cleaning unit for sites without a reliable mains supply.
150 bar is about 2175 psi, and a 5.5 HP engine corresponds to roughly 4.1 kW of shaft power before pump losses. That combination sits well above the 70-100 bar domestic electric class and is aimed at outdoor maintenance work: farm machinery, construction equipment, yards and vehicles washed away from a socket. This page sets out the published rating, the operating constraints of a petrol-driven washer, and how it compares with the electric machines in the catalogue.
Technical Specifications
| Parameter | Value | Note |
|---|---|---|
| Engine | Gasoline / petrol, 5.5 HP | Stated in the product title |
| Approximate engine power | About 4.1 kW | Unit conversion of 5.5 HP, not a published motor rating |
| Working pressure | 150 bar (about 2175 psi) | Stated in the product title; psi is a conversion |
| Power supply | Self-contained engine | No mains connection required |
| Flow rate | Not published | Request the pump curve before estimating cleaning speed |
| Pump type, hose and nozzle set | Not published | Confirm the packing list and pump data sheet |
Engine size and pressure are the only published figures. Flow, pump type, duty cycle, fuel consumption, noise level and accessory bundle are not stated, so they are not invented. For a quoted specification, ask the factory for the pump curve and the engine nameplate.
Where a Petrol 150 Bar Washer Is the Right Tool
Remote and Off-Grid Cleaning
A petrol washer does not need a generator or a long cable, so it works on farms, roadside sites, quarries, marinas and construction compounds. The operator needs water, fuel and an exhaust-safe outdoor area rather than a power point.
Machinery, Trailers and Yard Hardstanding
Tractors, diggers, trailers, concrete yards and livestock-area hardstanding carry mud and grease that a 70-100 bar domestic washer struggles with. 150 bar removes bonded soil more quickly, provided the surface and the paint tolerate the jet; keep a safe distance on seals, radiators and electrical boxes.
Fleet and Vehicle Washing Away From a Fixed Bay
Mobile valeting and small fleets without a dedicated washing bay benefit from an engine-driven unit. It is still an intermittent-duty machine: for a permanently installed multi-bay operation, a three-phase electric unit with a published duty cycle is the more economical long-term choice.
Petrol Versus Single-Phase Electric Washers
The choice is usually decided by the site, not by the pressure figure. A petrol unit wins where there is no power or where cables are impractical; it loses on noise, exhaust, maintenance and indoor use. Every electric machine in this catalogue – 850W compact washer and 1800W / 75 bar washer and 2200W domestic washer – is quieter and simpler to maintain, but needs a protected socket and cannot be used where exhaust fumes would be acceptable but a cable is not.
Pressure alone does not settle the comparison. 150 bar is roughly twice the 75 bar maximum of the 1800 W domestic washer and well above the 100 bar rated figure of KQ-1008S, but without a published flow figure for this petrol model the actual cleaning speed cannot be calculated. Request the L/min value before comparing tenders.
For jobs that need still higher pressure – heavy deposits, hull preparation or coating removal – the 150 bar class is the wrong tool. 1000 bar marine water blaster and 2800 bar / 40000 psi hull preparation system cover those duties with entirely different pumps, hoses and safety procedures.
| Duty | Power / pressure class | Equipment |
|---|---|---|
| Balcony, bicycle, one car | 70-100 bar electric | 1200W portable washer, KQ-1008S 100 bar washer |
| Weekend driveway and patio | 75 bar electric | 1800W car washer |
| Off-grid machinery and yard cleaning | 150 bar petrol, 5.5 HP | This machine |
| Hull paint and corrosion removal | 1000-2800 bar | 1000 bar water blaster, 40000 psi water blaster |
Operating and Maintenance Notes
- Run petrol engines outdoors only; exhaust contains carbon monoxide and must never be used in a garage, shed or enclosed yard.
- Check engine oil, fuel, air filter and pump oil before each session; never run the pump dry.
- Do not leave the trigger closed with the engine running; confirm the unloader or bypass arrangement with the supplier.
- Use hoses, fittings and guns rated for at least 150 bar and keep bystanders clear of the jet.
- Drain the pump and flush the system after use; store fuel according to local safety rules.
Frequently Asked Questions
Can the petrol washer be used indoors?
No. Exhaust fumes make indoor or enclosed use unsafe. Choose a single-phase electric washer for indoor or residential work.
What flow does it deliver?
Flow is not published in the product description. Ask for the pump curve; pressure alone cannot determine cleaning speed.
Is 150 bar enough to strip paint?
It can remove loose scale and heavy soil, but production paint and corrosion removal before recoating is normally a 1000-2800 bar water blasting job with different equipment and safety controls.
Can it use hot water or detergent?
No inlet temperature or detergent approval is published. Confirm with the factory before using anything other than cold water.
Related Cleaning Equipment
the 1800W / 75 bar single-phase car washer and KQ-1008S washer with a published 100 bar / 480 L/h table and 1200W portable dual-voltage washer and 1000 bar marine water blaster and 2800 bar / 40000 psi hull preparation water blaster.
