People ask us the same thing: "But how does it actually stay on?"
Watching a robot window cleaner glide silently across vertical glass while you make tea is genuinely impressive. Here's exactly how it works.
Step 1: Suction attachment (Gravity-Lock™)
The moment you press CleanBot R1 against glass and power it on, Gravity-Lock™ activates. Two motors create a sealed negative-pressure zone generating 6,500 Pa of grip force — the same principle used by industrial vacuum lifters to hold 80 kg glass panes. CleanBot R1 weighs 1.2 kg. The physics are very much in its favour.
Step 2: Window measurement (SmartScan™)
Before cleaning a single centimetre, SmartScan™ maps the glass boundaries and selects the optimal path:
- N-Path — vertical strips, top to bottom
- Z-Path — horizontal sweeps, edge to edge
- Hybrid — both, for large or irregular panes
- Spot Clean — targeted area for a specific mark
Step 3: Precision water mist
Two 60ml water tanks. A metered mist is applied 0.6 seconds before each pass — enough to loosen dirt without over-wetting. The system reaches the external pane of standard double-glazed windows from the inside, without opening the window.
Step 4: Microfibre cleaning pass
Two rotating microfibre-grade pads lift and hold dirt. Streak-free finish, every time.
Step 5: Triple-Safety System™
- Backup battery — maintains full suction for 30 min if power cuts
- Suction alarm — fires instantly if grip pressure drops
- Physical safety tether — 150 kg-rated last-resort failsafe
In 2,400+ UK sales, CleanBot R1 has never fallen. Not once.
Ready to try the UK's most intelligent window cleaning robot? Order CleanBot R1 — £173 with free UK delivery →