Residential Window Cleaning Robot

Model:311

The residential window cleaning robot from LIESA is made in Qingdao, China, for the window types found in homes: apartment glazing, balcony doors, dormer and roof windows, and a mix of framed and frameless panes. A safety rope is supplied and the manual lists an anchor point for each pane type. Liesa Intelligent Technology has built appliances in Qingdao since 2014, with OEM branding.

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Product Description

The residential window cleaning robot offered by LIESA, a professional window cleaning Machine manufacturer in China, is designed for homes with different window types and sizes, allowing the same unit to clean multiple glass surfaces within a property.

Rope placement depends on the window structure and available anchor point. The manual provides specific rope-fixing instructions for different situations, including balcony rails and interior door handles, with the recommended anchor point listed for each window type in the buyer’s language.

Specifications

Model	311（square shape）
Specification
Color	White/Black/Custom
Unit Dimensions (LWH) mm	22922965 (including wheel height)
Unit Material	Engineering-grade ABS
Unit Net Weight (kg)	1.4
Gross Weight (including 1in1 carton, kg)	2.6 kg
Base Dimensions (LWH) mm	37326287 mm
1in1 Carton Dimensions (LWH) mm	388100285 mm
5in1 Carton Dimensions (LWH) mm	545405310 mm
Top Cover Logo	YiYin/Sticker
Feature	Description
Working Modes	1. N-pattern cleaning,
	2. Z-pattern cleaning,
	3. Upward cleaning,
	4. Downward cleaning,
	5. Leftward cleaning,
	6. Rightward cleaning,
	7. Full-point cleaning,
	8. XZ-axis cleaning (N+Z),
	9. Left-only N-pattern cleaning,
	10. Right-only N-pattern cleaning
Backup Battery Operating Time	Approx. 20-30 mins
Charging Time	Approx. 2.0 h
Operating Noise	Approx. 65 dB
Operating Temperature & Humidity Range	0-40°C / 85% RH
Rated Power	72 W
Rated Voltage	24 V
Service Life	≥400 h
Bidirectional Auto Water Spray	Yes (Atomized)
Number of Spray Heads	2 (Dual-side spray, 1 head per side)
Water Spray Volume	0.17 ml/min
Effective Spray Area	Approx. 120 m²
Low Water Alarm	Yes (Motorized water valve)
Edge Air Pressure Detection	Yes
Variable Frequency Airflow Algorithm	Yes
Antifreeze Control Algorithm	Yes
UPS (Uninterruptible Power Supply)	Yes
Automatic Air Spray Adjustment	Yes
Belt Self-Cleaning	Yes
Anti-slip Belt	Yes
Hybrid Management	Yes
Multi-language Support	Yes (Chinese + 1 language included; additional languages available at extra cost)
Fan Speed	31,500 RPM ±10% (No load)
Speed Settings	Fixed
Maximum Vertical Drop Under Timed Spray	5.5 kgf
Fan Operating Pressure	2400-2800 Pa
Manual Update	Yes
Low Battery Alarm	Yes
Control Method	Remote control (Infrared) / APP (Optional)
Minimum Working Area Size	60 * 40 cm
Applicable Spray Coating Thickness	≥3 mm
Suitable Applications	Deep pools, garden landscapes, large stone walls, fountains, wooden doors, etc.
Feature	Sub-feature / Specification	Details
Indicator Light	Power indicator / Different color meanings	Yes
Motor	Momentary motor type	DC Brushless Motor (Full air-cooled)
	Drive motor type	2 pcs DC Brushless Motors
Battery	Battery type	Cylindrical Lithium-ion Cell
	Battery capacity (mAh)	500 (4 x 14500 cylindrical batteries)
	Charging current (mA)	Approx. 230 (at constant current)
Water Tank	Capacity (ml)	60
	Water spray	Dual-row ceramic nozzles (2*1)
Adapter	Input: AC(V), Frequency(Hz), Current(A)	AC 100~240V, 50/60Hz, 2.0A
	Output: Voltage(V), Current(A)	24V / 3.0A
Safety Line	Safety guard (Kgf)	135
	Safety rope length	Approx. 5m
Other	Quantity	2
	Dimensions (LWH) mm	233 * 233 * 4.0
Sensors	6-axis sensor	1
	Photoelectric sensor	4
	Water level sensor	1
	Highly sensitive air pressure sensor	/
Certifications	CE	Yes
	FCC ID	Yes
	RoHS	Yes
	WEEE	Yes
Installation Data	20Hz container capacity	2200 pcs
	40Hz container capacity	4300 pcs
	40HQ container capacity	5200 pcs

Planning a Whole Property

Window cleaning in a home is a sequence rather than a single task. The usual order is the panes that need the anchor first, then balcony glass, then interior panes where the rope is fixed to a door handle. Running the panes in that order means the rope is set once per window.

Framed and frameless panes in the same property need different behaviour from the residential window cleaning robot, and Edge sensing sets the behaviour on both. A framed bathroom window is cleaned to a set offset from the seal, while a frameless balcony panel is cleaned to the edge reading, both without a setting change by the owner.

Home Pane Types Compared

Pane	Typical situation	What the machine needs
Balcony door	Wide, often frameless	Edge sensing, larger tank
Bedroom window	Framed, repeated across rooms	Standard settings, quick cycles
Dormer or roof window	Hard to reach, angled	Rope planning, light body
Bathroom and utility pane	Small and framed	Small pane programme

The table lists the pane types found in a home and the settings each one uses.

Safety in a Home with Children

Household safety depends on habits as well as hardware. The rope is fixed before the unit is placed on the glass rather than after, the residential window cleaning robot is not started on a pane a child can reach without an adult present, and the unit is stored on a bracket or in a case rather than left on a sill. All three are printed on the first page of the manual.

The backup behaviour supports those habits. Adhesion is monitored through the cycle, and the internal cell holds the unit on the glass if the supply is interrupted, so an adult has time to bring it down without a ladder and without a rush.

OEM and Order Notes

The residential window cleaning robot is supplied as OEM work on body colour, logo, carton artwork, manual language, plug standard, anchor guidance for the market and accessory sets. Manual content covers pane types and anchor points and is issued in the buyer's language. Minimum order quantity, tooling and lead time are confirmed with the quotation.

Contact: Liesa Intelligent Technology (Qingdao) Co., Ltd., Qingdao, China | www.liesagadget.com. Factory address and full contact details are provided with the quotation.

FAQ

Q: Which home windows suit the residential window cleaning robot?

A: Balcony doors, bedroom windows, bathroom panes and dormer or roof windows, in both framed and frameless formats, subject to the minimum pane size on the specification sheet.

Q: How is the safety rope handled in a home?

A: The manual sets out an anchor for each pane type, from a balcony rail to an interior door handle, and the rope is fixed before the unit is placed on the glass.

Q: Can one machine clean a whole house?

A: Yes, as a sequence of panes. Running the ones needing an anchor first and interior panes afterwards avoids setting the rope twice at the same window.

Q: Is it safe with children in the house?

A: The machine is not started on a reachable pane without an adult present, and it is stored on a bracket or in a case rather than left on a sill, as set out in the manual.