Fully Automatic High-Pressure Washer

BOSI's fully automatic high-pressure washer series features a durable all-copper motor and precision-machined all-copper pump head. The core plunger is made of solid heat-treated stainless steel with ceramic coating, making it wear-resistant and corrosion-resistant.

Three power ratings are available: 750W (8MPa/7L/min), 1.8KW (8MPa/12L/min), and 2.2KW (10MPa/15L/min). It uses a 220V single-phase power supply for easy connection. The 1.8KW and 2.2KW models are equipped with solid rubber wheels and a rear-mounted push handle for easy movement; the 2.2KW model additionally features a four-angle nozzle quick-change function and a high-performance intelligent switch (leakage protection, overload protection, shut-off upon gun shutdown, and delayed shutdown).

The 750W and 1.8KW models also have basic shut-off upon gun shutdown and leakage/overload protection. Suitable for medium-to-high intensity cleaning operations such as industrial equipment cleaning, chemical tank cleaning, livestock pen washing, and car detailing.

Product Specification

Product Advantages

The core competitiveness of BOSI's fully automatic high-pressure washer series lies in its all-copper pump head and stainless steel ceramic-coated plunger. Ordinary washer machines use aluminum alloy pump heads and ordinary ceramic plungers, which lack sufficient corrosion resistance and hardness.

This series features a high-precision all-copper pump head, ensuring rapid heat dissipation and preventing cracking; the plunger undergoes solid heat treatment and is coated with a ceramic layer, achieving a hardness of HRC 65 or higher, and its wear resistance is 50% higher than ordinary plungers.

The 2.2KW model also features a delayed shutdown function—the motor continues to run for a few seconds after the gun is turned off to discharge hot residual water from the pump, preventing water seal aging and significantly extending the overall machine lifespan. The four-angle nozzle allows for quick tool-free switching, improving work efficiency.

Product Application

Industrial equipment cleaning: Removes oil and metal filings from machine tools, hydraulic equipment, and mold surfaces. The 2.2KW model is recommended, with a pressure of 10MPa and a 0° nozzle.

Chemical industry tank cleaning: Cleans residue from the inner walls of reaction vessels and storage tanks. Explosion-proof design is required; this series is non-explosion-proof and suitable for external and well-ventilated environments. Both 1.8KW and 2.2KW models are available.

Livestock Industry: For washing pigsties, chicken coops, and manure collection areas, the high flow rate of 15L/min allows for rapid cleaning. The 2.2KW model comes with a 25° fan-shaped nozzle.

Car Washing: For routine car washing in detailing shops, the 1.8KW model offers moderate pressure without damaging the paint; the 2.2KW model is suitable for stubborn stains on the chassis and wheel hubs.

Food processing plant: For washing drains and equipment exteriors, food-grade cleaning agents are required. The pump head material in this series is corrosion-resistant.

Municipal Sanitation: For cleaning garbage cans and ground stains, the 750W portable model is suitable for small-scale operations.

Product Testing Items and Data

Pressure Output Stability: After 30 minutes of continuous operation at rated pressure, pressure fluctuation is ≤±0.3MPa.

Flow Rate Test: The 2.2KW model achieved a measured flow rate ≥14.5L/min at 10MPa, meeting the nominal value.

Motor Temperature Rise: After 1 hour of continuous load, the temperature rise of the 2.2KW motor is ≤75K, indicating good heat dissipation from the aluminum casing.

Shut-off response: After releasing the trigger, the pressure switch action time is ≤0.5 seconds, and the motor stops in ≤2 seconds.

Nozzle switching durability: The four-angle nozzle can be rotated 1000 times without jamming or leakage.

Leakage protection test: operating current ≤15mA, operating time ≤0.1 seconds.

Overall waterproof rating: IPX5 (splash resistant), can withstand low-pressure water rinsing.