Automatic Window Cleaner

The Automatic Window Cleaner manufactured by Liesa, a professional manufacturer is designed for high-rise and everyday cleaning of smooth vertical surfaces. Liesa Model 309 combines dual-sided atomizing spray, dry and wet cleaning, strong suction, backup power protection, multi-direction automatic cleaning, and remote control in a lightweight 1.18 kg design. It can be used on glass, tiles, wooden doors, marble, and other suitable smooth vertical hard surfaces.

Dual-Sided Atomizing Spray Features

The Liesa Model 309 features a dual-sided bidirectional atomizing spray structure with two adjustable water-volume levels. The fine water mist helps loosen dust and stubborn water stains before the cleaning pads wipe the surface.

The robot supports both wet and dry cleaning modes, allowing users to select the cleaning method according to different surface conditions.

Spray System Features

· Dual-sided bidirectional atomizing spray

· Two-level water volume adjustment

· Fine and evenly distributed water mist

· Wet and dry cleaning modes

· Suitable for dust and stubborn water stains

Suction and Anti-Fall Protection

The robot uses a 72W high-power configuration together with a backup lithium battery and a 5-meter high-strength safety rope.

When the power supply is interrupted, the backup battery can maintain suction for approximately 20–30 minutes. The safety rope provides an additional physical protection measure during vertical cleaning.

The combination of backup power and safety rope helps reduce the risk associated with unexpected power interruption during high-altitude window cleaning.

Multi-Direction Automatic Cleaning

The Liesa Model 309 is equipped with a 2.4G wireless remote controller with a control distance of up to 25 meters.

It supports:

· Upward and downward cleaning

· Left and right cleaning

· Multi-direction automatic cleaning

· Spot cleaning

· Minimum working surface of approximately 30 × 30 cm

The built-in sensors monitor the operating status of the robot during cleaning and support stable operation.

Lightweight Design and Durable Motor

With a net weight of approximately 1.18 kg, the Liesa Model 309 has a compact and lightweight design for easier handling and positioning.

The robot uses a brushless motor designed for stable operation, with the supplied product specifications indicating a service life of 400 hours or more.

Suitable Surfaces and Applications

The Liesa Model 309 Automatic Window Cleaner is designed for smooth vertical hard surfaces, including:

· Glass windows

· Ceramic tile surfaces

· Wooden doors

· Marble walls

· Other suitable smooth vertical surfaces

Rough or uneven walls are not recommended because surface irregularities may affect suction performance.

Application Scenarios

The robot can be used for cleaning in:

· Residential homes

· Office buildings

· Commercial stores

· Other suitable indoor spaces

Complete Accessories for Daily Use

The product is supplied with a complete set of standard accessories, including:

· Cleaning cloths

· Safety rope

· Power adapter

The complete accessory configuration supports convenient setup and use after unpacking.

Factory Manufacturing & Quality Control

Liesa is an original manufacturer specializing in Automatic Window Cleaner products, with production capabilities covering assembly and finished-product manufacturing.

Standardized production lines integrate injection molding, motor assembly, and finished-product assembly. An independent quality-control laboratory conducts inspection before shipment.

Each Liesa Model 309 unit is tested for key functions including:

· Suction performance

· Spray performance

· Backup battery runtime

· Safety protection performance

Defective products are screened out before shipment.

OEM & ODM Customization

Liesa provides OEM and ODM customization services for overseas customers and bulk orders.

Available Custom Options

Appearance Customization

· Body color

· Logo silk-screen printing

· Color gift box design

Function Customization

· Spray volume parameter adjustment

· Remote controller button layout

· Accessory kit configuration

Private Label OEM

· Customer-owned branding

· Customized packaging

· Product configuration for cross-border e-commerce

Liesa can also provide product specification documents and real product photography or video materials to support overseas marketplace listing and product promotion.

Certifications & Supply Service

The Liesa Model 309 Automatic Window Cleaner has CE and KC certifications, with certification copies available for customers.

The manufacturer supports both trial orders and full-container bulk shipments, providing product documentation, certification materials, and customization services for overseas buyers.

FAQ

What surfaces can Liesa Model 309 Automatic Window Cleaner work on?

The robot is designed for smooth vertical hard surfaces such as glass, tiles, wooden doors, and marble. Rough or uneven walls are not recommended because they may weaken the suction performance.

Will Model 309 fall off when the power is cut?

The robot has a built-in backup lithium battery that can maintain suction for approximately 20–30 minutes after power loss. A 5-meter safety rope provides an additional layer of protection during operation.

Is OEM private labeling available for Liesa Model 309?

Yes. OEM customization is available for logo silk-screen printing, color boxes, body colors, and accessory kits. Customer-owned branding can also be supported for cross-border e-commerce sales.

What certifications does Liesa Model 309?

The product has CE and KC certifications. Certification copies can be provided to customers for relevant customs clearance and marketplace listing requirements.