Description

Thanks to the unique all-in-one box design, it is very compact, robust and durable, it is also extensively equipped and very easy to use: The SG 4/2 Classic steam cleaner impresses with excellent cleaning results, a superb price/performance ratio and maximum efficiency. The lightweight machine, weighing only 7.5 kilograms, is the most compact professional steam cleaner in its class, is ready for use in only 3 minutes and with 4 bar steam pressure offers more than enough reserves for deep cleaning and sanitation without the use of chemicals. Counters, dispensing equipment, tiles, hobs, ovens and lots more are meticulously cleaned right into the smallest crevice – regardless of the level of contamination.

In particularly stubborn cases the connectable VapoHydro function helps with hot water and effectively removes heavy contamination and greases, the water tank can be removed and filled at any time. Accessories such as steam hose, hand nozzle, point jet nozzle, Power nozzle, round brush, flat brush, steam scraper and microfibre cover are all stored directly in the machine – a floor nozzle is also available as an option.

Features and benefits

Compact all-in-one box design

Long-lasting, robust and thus very economical machine. Space-saving, comfortable storage of the accessories in the machine itself. Can be easily transported with one hand thanks to the low weight (7.5 kg).

Simple operating concept

Convenient pressure switch for switching the steam cleaner on and off. LEDs indicate readiness for use, water shortage and service interval.

VapoHydro function

Powerful cleaning combination of steam and hot water. Dissolved dirt is easily rinsed away. Increases the cleaning power on very stubborn dirt.

Comprehensive accessories

Multifunctional accessories for cleaning various surfaces. Space-saving, comfortable storage of the accessories in the machine itself. Floor nozzle, window nozzle and textile nozzle are available as options.

Removable fresh water tank

Fresh water tank can be filled at any time. Long cleaning applications with steam or VapoHydro function without any interruptions.

Is ready for use quickly at any time

Ready within 3 minutes of switching on. All accessories can be easily accessed at any time thanks to the all-in-one box design.

PRODUCT SPECIFICATIONS

Boiler capacity (L)	0.5
Tank capacity (L)	1.5
Steam pressure (bar)	max. 4
Heating output (W)	2250
Boiler temperature (°C)	max. 145
Cable length (m)	5
Voltage (V)	220 – 240
Frequency (Hz)	50
Colour	anthracite
Weight without accessories (kg)	7
Weight incl. packaging (kg)	9.4
Dimensions (L × W × H) (mm)	460 x 298 x 265

Kärcher SG 4/2 Fit Checks for Steam Cleaning

Kärcher SG 4/2 Classic is a compact all-in-one steam cleaner for chemical-free cleaning, sanitation, and detail cleaning in facility cleaning routes. It fits best when a team needs controlled steam output, VapoHydro support, and a practical unit for surfaces, fixtures, edges, and hygiene-sensitive areas rather than a wet scrubber or drying equipment.

Buyer check	Why it matters	What to confirm
Chemical-free cleaning	Steam cleaning can reduce reliance on chemicals when the soil load and surface type are suitable.	Confirm the target surface, grease level, residue risk, required dwell time, and whether chemicals are still needed for heavy buildup.
VapoHydro control	Water and steam control helps teams adjust rinsing and soil removal during different cleaning tasks.	Check whether the job needs dry steam, more moisture, detail rinsing, or follow-up wiping after the pass.
Sanitation and detail cleaning	Small fixtures, edges, grout lines, and touch areas need focused steam access rather than broad floor coverage.	Match nozzles, brushes, cloths, and operator access to restrooms, kitchens, counters, railings, and tight corners.
Compact all-in-one workflow	A small steam cleaner is most useful when staff can move it quickly between rooms and tasks.	Confirm storage, cable access, refill routine, cooling time, and the cleaning route before scheduling daily use.

Choose Kärcher SG 4/2 Classic when the priority is compact steam cleaning for chemical-free cleaning, sanitation, and detail cleaning in commercial spaces. For wet floor washing and water recovery, compare a scrubber dryer; for faster drying after extraction or wet cleaning, compare an air blower. SG 4/2 fits best as a professional cleaning tool for surfaces and detail zones where steam access matters.

Related planning paths: compare Kärcher Air Blower AB 28 when the job needs floor or carpet drying, review Kärcher BD 50/50 C for wet scrubbing and recovery, use floor scrubber vs buffer when choosing floor equipment, and compare cleaning machine options for facility workflows.