The Bosch Professional series of high-pressure washers occupies the upper mid-price segment and is aimed at craftsmen, contractors, service companies, and small businesses — those who use equipment daily in the field and require high reliability at a reasonable cost. All models come with a commercial warranty and are designed for intensive professional use.

The structural basis of the entire series is a crankshaft pump with a head made of brass or anodized aluminum and pistons with a ceramic coating or stainless steel. The crank drive provides a significantly higher lifespan compared to cam pumps of household washers, as it evenly distributes the load among the pistons and prevents overheating during prolonged operation. All models are equipped with the Auto-Stop system — the motor and pump shut off when the trigger is released, which reduces wear and energy consumption. Pressure is adjusted on the lance or trigger for precise customization to the type of surface. The Easy Service design allows quick access to the pump for maintenance without special tools right in the field. All models can draw water from a tank through a self-priming pump, making them independent of the water supply. The inlet water temperature is up to 50 °C, allowing work with pre-heated water for more effective grease removal.

The product range includes compact and lightweight models without wheels, with an integrated carrying handle. Typical features are: power 2300 W, maximum pressure 140 bar, flow up to 520 l/h. This is the most mobile variant of the series, optimal for work in confined spaces, at heights, or with frequent relocations. However, the main family is built on a four-wheel base with a metal telescopic handle and storage for the hose and accessories directly on the body. Power is 2400 W, pressure 150 – 160 bar, water flow up to 520 l/h. The difference between models in this group lies in the type of pump and configuration. The flagship of the series is a diesel version with an internal combustion engine for operation without an electric network, maximum pressure of 150 bar, and a flow rate of 900 l/h.