Dual-Sided Spraying Automatic Window Cleaner

Designed for residential and light-commercial cleaning tasks, the Liesa factory's quality 309PRO Dual-Sided Spraying Automatic Window Cleaner provides a more practical way to handle glass surfaces that are large, elevated or difficult to reach manually. Its compact design, automated movement and remote operation reduce manual effort in homes, retail spaces and hospitality environments.

What is 309PRO Dual-Sided Spraying Automatic Window Cleaner?

The Liesa 309PRO Dual-Sided Spraying Automatic Window Cleaner is an automatic window cleaning robot designed to combine spraying, wiping, suction and remote control in one compact unit. Unlike a dry-only window cleaner, the 309PRO uses dual-side atomized spraying to wet the cleaning path before the microfiber pads remove surface dust, water marks and everyday residues.

The unit uses adjustable suction from 2000Pa to 3200Pa to maintain adhesion during operation. A backup battery helps maintain suction in the event of a temporary power interruption, while the supplied 5m safety rope provides an additional physical restraint for elevated-window applications.

The cleaner is controlled by a 2.4GHz remote control with a range of up to 25m under suitable operating conditions. Seven cleaning modes allow users to select different movement and cleaning patterns according to the surface condition and cleaning task.

Product Features

1. Dual-side atomizing spray system

Most ordinary automatic window cleaners only support dry or single-side cleaning and cannot remove stubborn stains. This model has bidirectional atomizing nozzles with 2 water levels, dissolving dirt thoroughly and leaving zero water streaks for integrated dry & wet cleaning.

2. 2000–3200Pa variable frequency anti-fall suction

Fixed-suction competitors risk glass cracking or weak adhesion. Our adjustable vacuum fits all glass types; a 20–30min backup battery + 5m 150Kgf safety rope provides double anti-drop protection.

3. 7 flexible intelligent cleaning modes

Besides directional & spot deep cleaning, X1/X2 wet/dry modes handle corners and heavy dirt. The 2.4G remote works up to 25 meters, keeping users away from high-rise risks.

4. High efficiency & low noise

72W brushless motor (29,000 RPM) cleans 1㎡ in 4min40s; one 60ml water tank covers 18㎡. Operating noise only 68dB, slim 1.18kg lightweight body for easy moving.

5. Cost-effective full accessory set

While rivals only include 2–4 mop cloths, our package contains 8 microfiber pads plus remote, spray bottle, extension cord and spare battery for immediate use.

Product Application

1. High-rise balcony & French windows

Pain: Dangerous outdoor manual wiping, hard-to-remove watermarks.

Solution: Remote automatic cleaning without leaning out windows, streak-free wet scrubbing.

2. Shower room glass partitions

Pain: Stubborn limescale and soap residue.

Solution: Spot cleaning mode dissolves mineral dirt rapidly.

3. Shop glass doors & large curtain walls

Pain: High labor cost for large-area cleaning.

Solution: One tank covers 18㎡, greatly cutting labor time.

4. Tiles, marble & mirror walls

Pain: Uneven hand wiping on vertical smooth surfaces.

Solution: Multi-surface compatible design for whole-house cleaning.

5. Household daily cleaning

Pain: Tiring, inefficient manual window washing.

Solution: One-click automatic operation, easy for all ages.

Product Parameter

Factory Core Strengths

Stable Production Capacity

We are a professional automatic window cleaner manufacturer with self-owned assembly, motor and injection workshops. Daily output hits 1,000 units; bulk orders ship within 30 days with stable all-year supply.

Strict 5-step full inspection

1. Incoming component test for motors, batteries and sensors

2. Semi-finished machine test for suction & leak-free spraying

3. 2-hour whole-machine aging stability test

4. Real-scene adsorption test on glass, tile and marble

5. Final appearance & full accessory matching check

Full Customization Service

-Appearance: Custom body color, silk-screen customer exclusive logo

-Function: Adjust suction, battery runtime and cleaning programs

-Packaging: Custom color boxes, outer cartons and multi-language manuals

-Market version: Modify voltage for EU, Southeast Asia and Middle East markets

Authorized Certifications

CE (EU) & KC (Korea) certifications, all adapters and batteries meet international safety standards for smooth customs clearance worldwide.

Daily Maintenance Guide

1. After-use care

-Rinse mop pads and fully air-dry; replace worn cloths timely.

-Empty and rinse the water tank, only use pure water to avoid nozzle clogging. Never flush the whole machine with water.

2. Suction & battery care

-Keep silicone sealing free of grit to maintain suction; do not leave machine stuck on glass long-term.

-Charge battery when power hits 20% (2.5h full charge). For long storage, keep 50% power and recharge monthly.

3. Quick troubleshooting

- No spray: Refill water or unclog nozzles with thin needle

- Weak suction: Clean silicone seals

- Remote failure: Replace remote batteries or shorten operation distance

4. Storage

Dry all accessories of Dual-Sided Spraying Automatic Window Cleaner and store them in original cool, dry carton.

Customer Cases

1. Southeast Asia cross-border sellers:5,000 OEM units sold on Lazada/Shopee; spray & variable suction features lift conversion rate by 40%, after-sales failure rate below 1%.

2. EU & US supermarket buyers:CE-certified versions sell well in offline stores; bundled mop pad packages bring stable quarterly reorders.

3. Middle East wholesalers:Custom voltage versions solve local heavy dust issues with high market acceptance.

FAQ

Q1: What makes the Liesa 309PRO different from a dry-only window cleaner?

The 309PRO Dual-Sided Spraying Automatic Window Cleaner integrates dual-side atomized spraying with wet and dry cleaning modes. The spray system can help loosen surface dirt before microfiber wiping, while dry mode can be selected when additional water is not required.

Q2: What is the suction range of the 309PRO?

The machine provides adjustable suction from 2000Pa to 3200Pa. The appropriate setting depends on the operating surface and machine configuration.

Q3: Can the machine continue working after a power interruption?

A backup battery can provide approximately 20–30 minutes of suction support depending on operating conditions and battery status. The supplied safety rope provides additional physical protection.

Q4: How much area can the 60ml water tank cover?

Under the specified test conditions, one 60ml tank can support cleaning coverage of up to 18m². Actual coverage varies with spray level, surface condition, cleaning mode and water consumption.

Q5: What surfaces can the 309PRO clean?

It is designed primarily for glass and other approved smooth, non-porous surfaces. Mirrors and selected smooth tiles may be suitable after checking surface condition, flatness and adhesion.

Q6: Does the machine support OEM customization?

Yes. We support OEM options including logo printing, body color, packaging, multilingual manuals and selected market-specific configurations. Functional customization is subject to technical review.