Guide to Scrubbing & Drying with a Mains powered Scrubber Dryer

Scrubber Dryers are widely used in the cleaning industry to clean large floor areas.

As the name suggests scrubber dryers are designed to scrubs (or clean) a floor and dry it, in a single operation such as supermarkets, airports, warehouses and sports halls.

Firstly, the machine deposits a cleaning fluid onto the floor from an internal tank the amount can be adjusted by the operator.

Once the solution is deposited, the machine scrubs the solution with a brush or pad fitted to the front of the machine.


What’s the difference between scrubber dryers and which machine best suits my needs?

Smaller machines have a smaller turning circle and this makes them manoeuvrable and easy to use. The down side is the on-board reservoirs used for holding clean and dirty solutions are smaller and need emptying and re charging more often.  Conversely, large machines have larger reservoir tanks and wider brush paths which enable the machines to be more productive. Larger machines can also come with extra options such as adjustable brush pressures or even reversing options. However, the larger the machine the greater expense.


Power supply is also an important factor to consider. Machines are powered by either battery or mains power. Battery is more popular as it offers greater flexibility and less restriction from trailing cables. But these machines are restricted to the charge held within the batteries and require re-charging on a daily basis. Mains powered machines do not have limits on productive time but as mentioned trailing cables can be an issue.


If you think you know the type of machine you require excellent. However, if you are unsure simply answer the questions in the next section and contact our sales department, based on your answers someone will be able to offer you extra help and advice.

Questions to help choose the right Scrubber Dryer for you

  1. How often do you clean at present hourly, daily, weekly, monthly ?
  2. Do you use an existing machine - if so what type ?
  3. What result are you looking for - improved cleaner floors or improved quicker cleaning time?
  4. Do you have a budget?
  5. How big is the area to be cleaned - Sq Mtrs?
  6. Do you have racking / shelving in the area? If yes answer Questions 7 & 8
  7. What is the area between racking?
  8. What is the distance from wall to end of racking?
  9. What is the access / door size width / height to this area?
  10. Is the floor area on the ground floor, 2nd floor or mezzanine?
  11. Is there a lift?
  12. What is the floor surface? Concrete, tile, non - slip etc
  13. Where is the tap point for solution tank filling?
  14. Where is the drain to empty discharge waste water?
  15. Are there people working in the area?


Productivity can be measured using any of the following three categories

  1. Tank Capacity
  2. Battery Size
  3. Scrubbing Width


For example: Productivity by scrubbing width with Numatic Twintec TTQ 1535S Scrubber Dryer

  • Calculated SQ Mtrs Per Hour
  • Walking Speed Average = 3.5K/H
  • Scrubbing Width = 35cm
  • Productivity 3.5 x 35 x 10 = 1225 m2/h


Productivity by Tank Capacity

  • 1 litre of solution per 10 mtrs floor
  • The Numatic Twintec TTQ 1535S Scrubber Dryer has a 15 litre solution capacity - so the machine will cover 150sq mtrs before refill & discharge.


For example: Productivity by scrubbing width with Nilfisk Alto Scrubtec 553 BL Combi 20" Scrubber Dryer

  • Calculated SQ Mtrs Per Hour
  • Walking Speed Average = 3.5 K/H
  • Scrubbing Width = 53 cm
  • Productivity 3.5 x 53 x 10 = 1855 m2/h


Productivity by Tank Capacity

  • 1litre of solution per 10 mtrs floor
  • The with Nilfisk Alto Scrubtec 553 BL Combi 20" Scrubber Dryer has a 42 litre solution capacity - so the machine will cover 420 sq mtrs before refill & discharge.

This fact is important if the tap or discharge drain is located a long distance from the working area.

See the Wray Bros Commercial Scrubber Dryers for more information on the Nilfisk and Numatic Scrubber dryer range and accessories.