Hot water pressure washer - ar 6670 - 170 bar - 780 lt/h annovi

Hot water pressure washer - AR 6670 - 170 bar: how it reduces cleaning times in workshops and industry

Anyone who works daily in heavy maintenance or logistics knows the frustration of cold-water washing: hardened mud, layered mineral grease, and oil sludge seem to stick to vehicle frames and engine blocks. Spraying liters of acidic chemical degreasers and scrubbing for hours is not only tiring, it's unsustainable in terms of labor.

This is where the Annovi Reverberi AR 6670 redefines the rules of the game. This machine doesn't just push water at 170 bar , it uses the destructive force of heat. The thermal shock generated by the vertical diesel boiler instantly disintegrates the molecular bonds of the most stubborn grease. Where three passes and a lot of elbow grease were previously required, now a single fluid pass is enough to restore the metal to its original state, reducing the use of detergents by 70%.

Three-phase 400V technology and connecting rod pump: pure mechanics without compromise.

Beneath the body of this pressure washer beats an engineering heart designed for the most grueling work shifts. Powered by a 400V industrial network, it features a 5.0 kW induction motor that operates at constant speed, eliminating the voltage drops typical of single-phase machines.

Power transmission is entrusted to a professional Annovi pump with three all-ceramic pistons and a connecting rod-crank system . This mechanical configuration (HRC Series) guarantees impeccable heat dissipation and significantly superior resistance to abrasive wear and thermal shock compared to traditional pumps. Furthermore, the machine's electronic brain adopts the Timed Total Stop (TST) system: when you release the trigger, the flow stops and the motor switches off completely after a few seconds, eliminating water hammer in the pipes and protecting the brass head from any hydraulic stress.

Strategic pre-purchase evaluations: is it the right tool for your needs?

The AR 6670 is a significant investment and should be chosen carefully based on your actual operational needs:

• Consider this with your eyes closed if you run a heavy-duty vehicle repair shop, a farm with tractors and combine harvesters that need sanitizing, or an industrial facility where oil and grease constantly dirty the floors. It's the ideal machine if you already have a three-phase power line in your shop and are looking for a sturdy workstation with a massive 22-liter diesel tank that will provide you with heating autonomy for the entire day.
• Consider an alternative if your business takes place in residential settings, workshops, or private garages with only a traditional 230V single-phase meter, as this machine cannot physically operate on the household mains. Likewise, avoid it if you're looking for a lightweight tool that can be continuously loaded into the trunk of a car for small dusting jobs or private vehicles: the AR 6670 is a massive machine designed to tackle heavy dirt while remaining firmly planted on the ground.

Situations where purchasing the AR 6670 is not recommended

• Lack of a 400V industrial power line: Since this is a pure three-phase machine with a power consumption of 5.0 kW, it cannot physically operate on a traditional 230V domestic or commercial meter. If your company doesn't have a three-phase power supply, the machine will be unusable.
• Ordinary washing or light dirt needs: If your primary goal is to rinse dust from the yard, remove fresh dirt from cars, or clean perimeter walls, the investment in a diesel boiler and the power of the 170 bar structural pressure are completely disproportionate. For these tasks, a cold water model, more compact and economical, is definitely more suitable.
• Frequent transport required or limited space: The AR 6670 is a solid and imposing washing station, equipped with a very large diesel tank (22 liters). This makes it excellent for remaining stable on the ground during use, but also makes it uncomfortable and too heavy if you are looking for a lightweight tool to constantly load into the trunk of a car or small van.

AR 6670 pressure washer or AR 6970 pressure washer: which should you choose?

If you're unsure whether to stop at the thermal equilibrium of the 170 Bar range or move up to the industrial impact force of the larger 200 Bar model, here's a breakdown of the real-world data you'll see in the field:

🔀 Choosing the right stock: How to decide whether to invest in the AR 6670 or switch to the AR 6970:

🌡️ Thermal shock management on surfaces: the Annovi 6670 unleashes 170 bar, a pressure that, combined with the heat of the boiler, becomes the ideal ally for frequent washing in workshops or on farms. This thrust attacks greasy dirt and hardened mud without the risk of damaging sensitive wiring, vehicle paintwork, or hydraulic seals. In contrast, its bigger sister, the Annovi 6970, delivers 200 bar of pure impact force: a veritable saber of boiling water designed to scrape off heavy construction site dirt, such as bitumen residue, tar, or old concrete pours.

⏱️ The impact of water flow on labor times: when working with hot water, the real secret to closing the job site faster is the volume of water hitting the surface, because it's the water that carries away the sludge dissolved by the heat. The 6670 delivers 780 liters per hour, an exceptional amount for quick and continuous cleaning. Choosing the 6970 increases the output to a whopping 900 liters per hour: this hydraulic surplus generates an immediate washout effect that allows you to clear huge yards or wash entire fleets of vehicles in half the time.

Balancing consumption on the company's power line: Purchasing the 6670 means choosing a 5.0 kW three-phase induction motor that offers stable industrial efficiency while still leaving plenty of room for energy tolerance on the plant's grid to avoid tripping the panel if other machines are running. The 6970, on the other hand, requires a more powerful 5.5 kW motor block coupled with a higher-tolerance connecting rod pump, a tough and pure configuration designed exclusively for those with dedicated power lines and who need to squeeze maximum performance from the machine during continuous 24-hour shifts.

Fabrizio 's usage tips and suggestions

Forget the laziness of traditional single-phase machines or the need to use liters of corrosive chemicals. When you start the Annovi Reverberi AR 6670 , the combination of the 5.0 kW induction motor and the diesel boiler immediately makes things clear: the thermal shock generated by the high-temperature water dissolves structural greases and oil sludge in a fraction of a second. It's the ultimate machine for company car washes, machine shops, and stables that require deep cleaning and heavy-duty degreasing without wasting entire days of labor.

The real yield

Working with the AR 6670 means enjoying consistent performance that only a 400V three-phase power supply can guarantee. The 170 bar pressure works in perfect synergy with a robust water flow rate of 780 liters per hour: this means you don't just "move" dirt, but liquefy it and wash it away permanently on the first pass. Furthermore, the machine's vertical architecture reduces space requirements in production areas, while its calibrated center of gravity facilitates movement even with full tanks.

Industrial Anatomy: What You Need to Know About Mechanics

• Instant and constant heat: The vertical steel boiler with double coil is powered by a burner with an independent motor. This system optimizes diesel combustion and raises the water temperature in a matter of seconds, ensuring a continuous stream of boiling water.
• High-strength pump geometry: The Annovi pump assembly with connecting rod and crank system features three all-ceramic pistons and a stamped brass head. This is the most sophisticated configuration in the industry, designed to dissipate heat and withstand the most extreme thermal stresses.
• Preservation of hydraulic seals: The Timed Total Stop (TST) system intelligently intervenes every time you release the lance. By shutting down the machine after a few seconds of bypass, it prevents static overheating of the water in the head, extending the life of the seals by three times.
• Structured energy autonomy: The 22-litre fuel tank is designed to cover entire days of intensive washing without forcing you to constantly stop for refuelling.

Professional profiles to which it is addressed

This specific model represents the optimal choice if:

• You run a machine shop or a fleet of heavy equipment and need to clean greasy components, transmissions, or engine blocks before repairs.
• Do you work in the livestock or agricultural sector and need to sanitize livestock environments or wash dried mud from tractors and combine harvesters?
• You demand the mechanical stability of a three-phase induction electric motor that can run for hours on end without any pressure drops.
• Are you looking for a solid, reliable cleaning station with original Italian spare parts always available?

The life-saving safety device for the pump

The most important innovation of the AR 6670 lies in its automatic residual pressure relief circuit . When the gun trigger is released, the machine does not suffer the classic destructive water hammer that affects inexpensive pressure washers. The water stops building up static pressure inside the brass, idling until the timed shutdown. This detail eliminates the most common failures at the root and guarantees a machine that is always ready and free from hidden wear.

Quality control before shipment

Before this Annovi Reverberi AR 6670 leaves our warehouse, Fershop workshop technicians perform a thorough and rigorous inspection . We unpack the pressure washer, make the industrial electrical connections, check the ignition of the diesel boiler, and test the heat output under pressure. You'll receive a perfectly calibrated machine, ready to connect to your three-phase network and start working. Every purchase is covered by our 6-month Fershop Satisfaction or Money Back Guarantee.

The final verdict

If your goal is to stop wasting precious time and toiling over grime and grease that's impossible to remove in cold water, the Annovi AR 6670 hot water cleaner is the professional breakthrough you've been looking for. It harnesses the power of Italian three-phase engineering to thoroughly clean, speed up workflows, and ensure flawless results in any industrial setting.

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