Upright & dry vacuums

ST 11

ST 11


The all-round model with extensive accessories for every application and a large 11 litre fleece filter bag for professional use. Stable and moveable: the innovative design with a low centre of gravity and the rubberised castor wheels at the rear ensure a stable footing and stability in movement. Extremely low noise level of just 56 dB(A), ideal for use in noise-sensitive areas. Plug-in mains cable in a bright colour for maximum safety during operation.

Technical key data
  • Working width 270 mm

  • Volume fleece filter bag 11 l

  • Weight 6,7 kg

  • Power max. 720 W

ST 11
Product highlights
Vielseitig reinigen

High-performance suction motor.

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The machine operates so quietly that it can even be used during working hours, or in noise-sensitive areas.

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Adjustable air supply

For fatigue-free working, adjusted to suit any surface.

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Compact construction

Compact construction, so especially easy to transport.

Vielseitig reinigen

Compact construction, so easy to transport.

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BIONEEM fleece filter bags

Exclusive to columbus: Filter class M fleece filter bag for hypo-allergenic use.

  • Plug-in cable in signal colour

Maximum safety during operation: clearly visible, easily replaceable cable.

  • Ideal for hard floors

Also suitable for cleaning hard floors.

  • HEPA filter

Exceptional protection for users and the environment.

  • Retain value

Keeps high value textile floor coverings looking good for longer.

ST 11
Technical data
Technical key data
L x W x H 390 x 300 x 410 mm
Working width 270 mm
Ground clearance
Volume fleece filter bag 11 l
Noise level 56 dB (A)
Sounf power level 73 dB (A)
Weight 6,7 kg
Nominal diameter 32 mm
Electrical data
Rated voltage 230 V
Power total 720 W
Mains cable 10 m
Suction motor
Low pressure max. 222 mbar
Air flow max. 31 l/s
Protection class II
Air flow regulation mechanical
Brush Speed
Brush drive
Floor adjustment
Telescopic tube
Filter basket yes
Exhaust air filter cassette yes
Upholstery tool yes
Crevice tool yes
Round brush set
Clip for accessories
ST 11

As a specialist for contract cleaning, columbus offers you, in addition to first-class machines, a wide range of accessories for an individual adaption to your equipment and your requirements.