As a professional manufacturer in China, Liesa factory's Electric Glass Wiper Window Robot Cleaner is a hot sale automatic cleaning device that uses electric drive & strong adsorption to finish window cleaning safely. It works for home windows, balcony glass and shower room glass, making glass clear and reducing manual work.
As a supplier deeply rooted in the cleaning equipment industry, Liesa understands the importance of product stability. The core advantage of this best-selling Electric Glass Wiper Window Robot Cleaner lies in its "double-sided cross-twisting wiping" technology. It doesn't simply rub in circles on the glass; instead, it applies alternating pressure like a human hand, combined with dual-sided atomized water spray, first dissolving the stains and then thoroughly wiping them away.
What exactly is it? What can it do for you?
The Electric Glass Wiper Window Robot Cleaner is a smart robot that can adhere to vertical glass surfaces and automatically move and wipe. Simply place it on the glass, press the switch, and it will plan its route to clean the entire window. Whether it's a floor-to-ceiling window at home, a bathroom mirror, or office partition glass, it can handle it. Its built-in intelligent sensing system ensures a tight attachment, and even in the event of a power outage, the built-in UPS backup power will keep it stable in place for 30 minutes without falling.
Key Advantages
1. Simulated Hand-Washing Technology: We use a "dual-disc alternating twisting" design, simulating the process of rubbing away dirt and then wiping clean when cleaning windows by hand. Combined with dual-sided atomizing water spray, it first wets and softens dried bird droppings and dust before wiping them away, avoiding scratches left by dry wiping.
2. Intelligent Variable Frequency Adsorption: Ordinary robots only have one suction power. Our Electric Glass Wiper Window Robot Cleaner automatically adjusts its suction power according to the degree and location of dirt on the glass. Increase suction power when cleaning dirty areas to ensure thorough wiping; maintain stable adhesion at edges. According to laboratory data, the maximum suction power reaches 5 kg, sufficient for various smooth surfaces.
3. Thorough Path Planning: The built-in smart chip allows it to plan routes in an "N" or "Z" pattern, achieving up to 98% coverage, avoiding repeated wiping and missed areas, getting the job done in one go.
Liesa vs. Competitors: Why Choose Ours?
Comparison Dimension
Ordinary Window Robot
Liesa Electric Glass Wiper Window Robot Cleaner
Cleaning Principle
Single-disc rotation, simply smears dirt around on the glass, often leaving circular marks.
Dual-disc alternating twist & wipe, simulating human hand motion. Sprays water first, then cross-wipes.
Water Spray System
Single-sided spray, or no spray. Dry wiping creates resistance and may scratch the glass.
Dual-sided atomized water spray, with even and controlled water volume.
Suction System
Fixed suction power. Power drops when encountering resistance, increasing the risk of falling.
Smart variable frequency suction. Automatically increases suction (up to 5kg) when sensing resistance or nearing edges.
Path Planning
Random or basic zig-zag pattern, prone to missing spots.
High-precision sensors with planned N/Z-shaped paths, achieving 98% coverage rate.
Noise Control
Many old models are loud and disruptive.
Optimized motor structure, operating noise controlled under 68 db.
More Specifications
Window Cleaning Robot Product Specifications
Overview
Model
309 PRO
Product Name
Dual-Sided Spraying Window Cleaning Robot
Color
White / Pink
Appearance (Design Rendering)
Packing List
Main Unit (with built-in battery pack) × 1, Power Adapter × 1, AC Power Cord, DC Extension Cord × 1, Cleaning Cloths × 8, Safety Rope × 1, Remote Control × 1, User Manual × 1, Spray Bottle × 1, Battery × 1
Detailed Specifications
Package
Color
White / Pink
Main Unit Dimensions (L×W×H) mm
269*136*78
Main Unit Material
ABS+PC
Main Unit Net Weight (kg)
1.18
Overall Gross Weight (incl. 1-in-1 Master Carton, kg)
2.45
Color Box Dimensions (L×W×H) mm
320x86x287mm
1-in-1 Master Carton Dimensions (L×W×H) mm
335x96x315mm
5-in-1 Master Carton Dimensions (L×W×H) mm
505x350x335mm
Front Cover Logo
Silk Screen Printing
Function
Operating Mode
1. Clean Upwards 2. Clean Downwards3. Clean Leftwards 4. Clean Rightwards 5. Spot Cleaning6. X1 Mode Cleaning (Dry/Wet Mopping; adjustable water volume for wet mopping—Small/Large—with Small as default) 7. X2 Mode Cleaning (Dry/Wet Mopping; adjustable water volume for wet mopping—Small/Large—with Small as default)
Backup Battery Charging Time (h)
Approx. 2.5 hours
Backup Battery Runtime (min)
20–30 minutes
Operating Noise (dB)
Approx. 68 dB
Operating Temperature & Humidity Range (°C / %)
0–40°C; ≤85% RH
Operating Speed (min/m²)
Approx. 4 min 40 sec per square meter; one full water tank covers 18 square meters
Rated Power (W)
72 W
Rated Voltage (V)
24 V
Unit Lifespan (h)
≥400 Pa
Suction Motor Speed (rpm)
29,000 RPM ±10%
Speed Settings
Automatic Adjustment
Vacuum Pressure (Pa)
2000–3200 RPM (Variable Frequency)
Manual Update (Firmware)
Yes
Low Battery Alarm
Yes (Buzzer)
Control Method
Remote Control (2.4G) — Controllable range: up to 25 meters
Minimum Working Surface Size (cm)
30*30
Water Spray Settings
2 Levels
Water Spray Volume (ml/spray)
Small Setting: Approx. 0.06 ml/s; Large Setting: Approx. 0.09 ml/s
Water Spray Method
Atomizing Nozzle (Bi-directional Spray)
Water Level Detection
None
Applicable Surfaces
Glass, tiles, wooden doors, marble walls, and other smooth vertical surfaces
Structure
Solenoid Valve
Voltage
24V
Indicator Light
Battery Indicator / Meaning of Indicator Light Colors
Yes
Water Tank
Capacity (ml)
60 ml
Motor
Suction Motor Type
Brushless DC Motor
Drive Wheel Motor Type
Brushed DC Motor
Battery
Battery Capacity (mAh)
650
Battery Type
Lithium-ion Cells
Charging Current (mA)
Approx. 300 (at constant current)
Accessories
Adapter
Output Parameters: Voltage (V), Current (A)
24V 3A
Input Parameters: AC (V), Frequency (Hz), Current (A)
AC 100–240V, 50/60 Hz, 2.5A
Safety Rope
Safety Rope Load Capacity (Kgf)
150
Safety Rope Length
5 m
Cleaning Cloth
Quantity
8 Blades
Other
Sensor
Distribution and Category
1. 6-axis sensor (on the mainboard) 2. Barometric pressure sensor (on the button board)
Certification
CE
YES
KC
YES
FAQ
Q: Can I use it on windows with frames or film?
A: Absolutely no problem. The Electric Glass Wiper Window Robot Cleaner's sensors accurately identify frames and automatically turn around at the edges. For film-coated glass, our silicone conveyor belt won't damage the film, so you can use it with confidence.
Q: Is this easy to operate? Does it require installation?
A: Absolutely no installation required. After receiving the product, simply follow the video instructions in the manual, attach the safety rope, plug it in (or charge it), and attach it to the glass. It will start working automatically. Even the elderly can easily use it.
Q: What kind of support do I need if I want OEM customization or bulk wholesale locally?
A: Of course. We accept OEM customization; packaging and logo can be made to your requirements. For wholesale customers, our MOQ is 1000 units, we support T/T payment, and the delivery time is generally around 45 days, ensuring you have ample preparation time.
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