Applications
- Glass facades
- Windows
- Building exteriors
- Commercial towers
- Industrial structures
- Large architectural surfaces
Facade cleaning drone (high-rise)
A tethered facade-cleaning drone that deploys in two minutes and cleans at 80–100 m.

Key performance
Overview
Facade models (QY-QX-420, QY-X4-40) are tethered to a ground high-pressure washer through a braided hose, allowing continuous cleaning at heights of up to 120 m without scaffolding or gondolas.
Photovoltaic models (CD20, CD50) carry an onboard water tank and spray system for solar arrays, with RTK positioning and radar for stable, repeatable passes.


QY-QX-420
| Model | QY-QX-420 |
|---|---|
| Aircraft type | Facade cleaning drone (high-rise) |
| Empty weight | 15 kg (excluding battery) |
| Maximum takeoff weight | 35 kg |
| Wheelbase | 1533 mm |
| Dimensions (unfolded) | 1200 × 1200 × 687 mm |
| Dimensions (folded) | 712 × 740 × 687 mm |
| Endurance | 30 min |
| Cleaning height | 80–100 m |
| Hover accuracy | GNSS: ±1 m horizontal, ±0.5 m vertical · RTK: ±0.1 m |
| Maximum ascent speed | 5 m/s |
| Maximum descent speed | 2 m/s |
| Maximum speed | 20 m/s |
| Service ceiling | 3,000 m |
| Wind resistance | Level 6 |
| Operating temperature | +5 °C ~ +45 °C |
| Structure | Truss frame · aluminum alloy, engineering plastic, carbon fiber · IP67 |
| Battery | 40,000 mAh 14S semi-solid lithium · 5C |
| Remote controller | 5.5" 1080p display · 15 km · 13 h battery |
| Control method | App ground station / remote controller |
| Deployment time | ≤ 2 min from transport to flight (2 operators) |
Specifications are measured under standard test conditions and may vary with payload, altitude, temperature, wind and configuration. Final specifications are confirmed in each quotation.
Applications
Configuration options
Platforms can be configured around payload, endurance, communication, sensors and mission equipment. Tell us about your operation and we will recommend a configuration.
Discuss a Custom SolutionTraining & after-sales support
Cleaning
QY-QX-420
Send us your requirements and our team will provide detailed technical information, configuration options and a quotation.