Robotic Window Cleaning Machine

Model:309 Ultra

The 309 Ultra Robotic Window Cleaning Machine offered by Liesa, a professional manufacturer from China, is a dual-sided spraying window cleaning robot designed for automated cleaning of glass, marble, desktops, and other smooth vertical surfaces. It combines water mist atomization, vacuum adsorption, multi-sensor monitoring, and reversible drive motors to provide stable cleaning performance on vertical surfaces.

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Product Description

Liesa, a professional manufacturer from China, provides you 309 Ultra Robotic Window Cleaning Machine, which is built with high-strength A82 engineering-grade 4C material and is available in white and pink. Its micron-level water bubble atomization spray system produces a finer and more evenly distributed mist than conventional direct-spray systems, helping loosen dust, mineral deposits, and other stubborn residues on glass and other smooth surfaces.

Structural characteristics

For stable attachment, the 309 Ultra uses a brushless DC motor, dual reversible drive motors, and a multi-sensor safety system. Two air-pressure sensors continuously monitor the adsorption condition, while the safety torque threshold is rated at more than 120 kgf, helping reduce the risk of accidental detachment during operation.

The built-in 450 mAh lithium-ion battery requires approximately 0.5 hours to charge and provides around 20–30 minutes of continuous operation. The supplied power adapter supports 100–240V AC, 50/60Hz input and provides 24V / 3.75A output, making the power system suitable for different international markets.

Product Information

Model	309 ultra
Product Name	Dual-Sided Spraying Window Cleaning Robot
Color	White + Secondary Shaft / Fixed Shaft
Appearance (Design Rendering)	Main Unit x1, Adapter x1, AC Cable x1, DC Waterproof Cable x1, Environmental Protection x10, Safety Valve x1, Channel Connector x1, Suction Accessory x1, Weighted Accessory x1
Packing List

Detailed Specifications

Package	Color	White / Pink
	Main Unit Dimensions (L×W×H) mm	29514772.2
	Main Unit Material	A82 (Engineering Grade) 4C
	Main Unit Net Weight (kg)	1.2 (including frame, protective disc, 1 protective cover)
	1 IN 1	2.5KG
	Protective Cover Dimensions (L×H×H) mm	315x167x198
	11-inch Channel Dimensions (L×H×H) mm	300x179x165
	16-inch Channel Dimensions (L×H×H) mm	295x256x529
	Weight / Process	20 seconds
Function	Engineering Mode	1
	Measured Battery Operating Time (min)	20min - 30min
	Charging Time (h)	Approx. 0.5h
	Operating Current (A)	Approx. 65
	Operating Temperature & Humidity Range (℃/RH)	0~40℃ 85%
	Operating Speed (min/m²)	4 min/m²
	Rated Power (W)	90W
	Rated Voltage (V)	24V
	Ventilation Motor Speed (r/min)	2700 RPM ±3%
	Maximum Expected Test Parameter Level (kg)	3.8 (200Pa), 3.6 (200Pa)
	Vacuum Level (Pa)	2000 ~ 580Pa
	Negative Value	Yes
	Manual Update	Yes
	Charging Level Alarm	Yes (adjustment factors considered)
	Control Method	2.62 Programmable Controller (can be upgraded up to 30% later)
	Sampling Principle	Multi-point frame, fixed length + current, no travel, air pressure sensor
	Minimum Working Area Size (cm)	30 *30
	Suitable Working Surfaces	Glass, Desktop, Marble
	Indicator Light
	Power indicator / Status indicator (light definitions)	Yes
	Motor
	General Motor Type	DC Brushless Motor
	Drive Motor Type	2x2 DC Reversible Motor
	Battery (Internal)
	Battery Type	Lithium-ion
	Battery Capacity (mAh)	450
	Charging Current (mA)	Approx. 300 (at constant current)
	Adapter
	Input: AC(V), Frequency(Hz), Current(A)	AC 100-240V, 50/60Hz ±5%
	Output: Voltage(V), Current(A)	24V / 3.75A
	Safety
	Safety Torque Threshold (Kgf)	>120 kgf
	Operating Field Length / Full Operating Room Width	Approx. 1.3m
	Weight (During Operation)	30kg
	Other Sensors
	Sensors & Distance Measurement	1.6 Component Sensors (on main unit), 2 Air Pressure Sensors (on air unit)
	Certifications
	Original Test Report	Yes
	CE	Yes
	RoHS	Yes
	IEC	Yes

309 Ultra Robotic Window Cleaning Machine

Key Features

Fine Water Mist Atomization

The micron water bubble atomization system generates a fine and evenly distributed mist to improve contact with the cleaning surface. Compared with conventional straight-spray systems, the finer mist helps soften dust and mineral deposits before wiping.

Stable Vacuum Adsorption

The 309 Ultra uses vacuum adsorption with real-time air-pressure monitoring to maintain contact with vertical surfaces. The system incorporates two air-pressure sensors together with multiple electronic sensors for continuous status monitoring.

High-Torque Safety Protection

The safety system has a torque threshold of more than 120 kgf. Combined with vacuum monitoring and reversible drive motors, this design helps improve operational stability when cleaning vertical glass surfaces.

Brushless DC Motor System

A brushless DC motor is used for the main drive system, while two reversible DC drive motors control the machine's movement and direction on the cleaning surface.

Built-In Rechargeable Battery

The internal 450 mAh lithium-ion battery supports approximately 20–30 minutes of operation after a full charge, with a charging time of around 0.5 hours.

Programmable Control System

The 2.62 programmable controller supports manual firmware updates and reserves approximately 30% of the controller capacity for potential future functions and software upgrades.

International Power Compatibility

The supplied adapter accepts AC 100–240V, 50/60Hz input and outputs 24V / 3.75A, supporting use across different international markets.

Applications

The 309 Ultra Robotic Window Cleaning Machine is designed for smooth, relatively flat surfaces where automated cleaning can reduce manual work.

Typical applications include:

Glass windows and large glass panels

Floor-to-ceiling glass surfaces

Glass doors

Marble and other smooth stone surfaces

Smooth desktop surfaces

Hotel and property maintenance

Commercial and retail glass cleaning

Residential window cleaning

FAQ

Q1 Can we customize extended waterproof cables for the Robotic Window Cleaning Machine if the standard length is insufficient?

Custom DC waterproof cables of various lengths are available for tall floor-to-ceiling windows and large commercial glass. All extended waterproof accessories can be purchased in bulk separately, with sealed connectors equipped at factory to ensure safe power supply during high-altitude cleaning.

Q2 Does bulk order of it allow split shipment in multiple batches?

Our factory supports split shipment for bulk orders. We can arrange production and delivery in batches according to your sales cycle to fit overseas warehouse stocking schedules, and complete customs certification documents will be provided separately for each shipment.

Q3 Will storage in low-temperature warehouses shorten the service life of the built-in lithium battery of it?

The lithium battery has passed low-temperature weather resistance test before delivery. Short-term low-temperature storage will not cause damage. For long-term storage in cold regions, dedicated maintenance guidelines are attached in user manuals to slow down battery degradation.

Q4 Can we pack the Robotic Window Cleaning Machine together with customers’ self-owned cleaning detergent as a complete set for shipment?

Combo packaging service is supported. We can reserve space inside color boxes to match cleaning detergent and consumables for all-in-one sales. Our factory can adjust the internal partition structure of cartons for integrated overseas packaging.

Q5 Can we get supermarket display cartons specially designed for retail sales of it?

Custom supermarket display cartons with transparent window are available. Thickened and reinforced materials fit shelf display. The printing and layout of cartons can be adjusted according to local supermarket standards to boost offline sales appeal.

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