LEWI.
DEVELOPED FOR PERFECT CLEANING PERFORMANCE
LEWI catalog 2023
Our current catalog 2023 with the latest LEWI products can be downloaded here as a PDF. To do this, click the PDF symbol.
LEWI cleaning devices allow permanent, safe and fatigue-free work – even after hours of cleaning. This is what makes them so popular with cleaning professionals. For decades, Lehmann has been producing its LEWI products according to ergonomic criteria and providing the cleaning industry with reliable, economical and versatile technology
High quality - high reliability
Safe connection technology - safe operation
Ergonomic construction - relaxed work
Versatile components - economical system solutions

WINDOW WIPER
With perfect handles and high-quality, vulcanized rubber squeegees, they enable comfortable work and streak-free cleaning of glass panes at any time of the year.

WINDOW WIPER RUBBER
No other rubber pulls off better. Lehmann quality is recognized by professionals from the many times tested window squeegee rubber.

WASHER & T-BAR
LEWI washers perfectly absorb dirt and water and thus ensure strong cleaning power. Depending on the work requirements, you will always find the right T-beam in the LEWI range.

TELESCOPIC POLES
Unlike conventional poles available on the market, the stable and fixed LEWI telescopic poles allow safe and fast work even under high pressure.

WINDOW LEATHER
LEWI chamois leather for radiantly clean windows and surfaces, streak-free and without stains – the classic for modern care. LEWI chamois leather are only tanned using old recipes.
LEWI. OUR BESTSELLERS
LEWI.
Professional products
- Washer & T-Beam
- Window squeegees & squeegees
- Window Scrapers & Blades
- Telescopic poles
- Water pass rods
- Belts, Quivers & Bags
- Buckets & waxers
- Squeegees & mop handles
- Washing brushes
- Window leather
- Cloths & pad sponges
- Seat belts & ropes
- equipment
- Sets
LEWI.
PROFESSIONAL SYSTEMS.
PURASTART
The system solution for entry into the professional cleaning of glass fronts, winter gardens, vehicles and leisure vehicles.

Outdoorsystem
LEWI Purastart Mini
For smaller cleaning jobs.
12.5 L bottle including mixed bed resin, handleand TDS meter.
Price includes a water-bearing aluminum joint and a 25 cm wash brush.
Streak-free drying thanks to demineralized water.
PROVEN QUALITY TOOLS FOR CLEANING PROFESSIONALS
LEWI cleaning devices allow permanent, safe and fatigue-free work – even after hours of cleaning. This is what makes them so popular with cleaning professionals. For decades, Lehmann has been producing its LEWI products according to ergonomic criteria and providing the cleaning industry with reliable, economical and versatile technology
Contact us for more information.
Contact
FAQ
DO YOU HAVE ANYMORE QUESTIONS?
If you have any questions, you will find answers to many topics here. If you cannot find the information you are looking for, we will be happy to help you personally.
Safety note: handling cleaning chemicals
Depending on the cleaning agent used, always wear suitable protective equipment (protective goggles, protective gloves, work clothing). Personal protective equipment depends on the product to be used and its labeling. Always note:
- optimal ventilation at the workplace
- use cold water
- Correctly dose cleaning chemicals
- never mix different products
- Only use cleaning agents approved by Lehmann KG for QLEEN and LEWI systems
Selection guide: LEWI wiper rubber
LEWI squeegee rubber SOFT (Shore-hardness: 53 ± 2)
- Good for colder temperatures
- Perfect for uneven surfaces
LEWI squeegee rubber HARD (Shore-Härte: 60 ± 2)
- Good for warmer temperatures
- Ideal for large, smooth surfaces
Safety note: Avoid cleaning work on a ladder
- Always check that it is safe to clean from the floor
- With QLEEN pole systems (with a comfortable and very stable bayonet lock) you can work safely at a height of up to 20 m, directly from the ground
- The LEWI safety cone (“the fixed LEWI connection”) enables safe work at all times, as the tools (LEWI tools) lock securely into place and cannot fall off
Selection guide: QLEEN pole systems
- Basic application requirements:
- stiffer rod systems are particularly suitable for greater working heights
- the longer the work, the lighter the pole system should be
QLEEN telescope HYBRIDPOLE
Working height: up to 6 m (2nd floor)QLEEN telescope CARBONPOLE
Working height: up to 9 m (3rd floor)QLEEN CARBONPOLE
Working height: up to 21 m (6th floor)QLEEN TITANPOLE
Working height: up to 15 m (5th floor)QLEEN professional pole system
Working height: up to 21 m (6th floor)
Safety advice: work at height
Working at heights is only permitted with personal protective equipment (“PPE against falls from a height”) on. The regulations of occupational safety and the employer’s liability insurance association must be observed.
Application note QLEEN: Protection against frost
Pure water (= demineralized water) freezes – unlike tap water – at + 1 ° C. The QLEEN system must therefore not be used at outside air temperatures below +3 ° C. The QLEEN system must be protected from temperatures below +3 ° C and frost, because frost can damage the water-bearing parts of the system.
Application note QLEEN: Temperature of the surfaces to be cleaned
It is dangerous to work at temperatures of the surfaces to be cleaned above 50 ° C. Higher temperatures can cause cracks or flaking on the surfaces.
The QLEEN principle - cleaning with pure water
The high chemical-free cleaning power of the pure water is the principle on which the QLEEN system for glass and facade cleaning is based. Tap water is passed through a granulate bottle. The minerals contained in tap water are deposited on the granules. The tap water is demineralized and reaches the pump as pure water and from there to the cleaning head. Pure water not only has very good wetting properties, it also dries without leaving spots or streaks, even in strong sunshine. This means that in many cases there is no need to use cleaning agents (exception: greasy, oily or very heavy soiling).
LEWI telescopic poles - order information
LEWI telescopic poles. Only real with the blue cone. LEWI telescopic poles are available in two to four parts. Special sizes are available on request. All telescopic rods have a cone with the “fixed connection” and a clamp protection. Telescopic rods & gt; 250 cm: Shipping only possible through a forwarding agency. Additional packaging costs will be charged for purchases under our sales units.

Lehmann outdoor and indoor cleaning solutions are used successfully around the world. Convincing products and systems. MADE IN GERMANY.