Cleaning windows is a time-consuming and often risky task, especially for the outer surfaces of high-rise buildings. As modern architecture increasingly features large glass panels, automatic window cleaning robots have become essential smart home devices that ensure both convenience and safety.
Also known as automatic window cleaners or intelligent glass cleaning robots, these devices use a vacuum pump or fan system to generate negative pressure, allowing them to attach firmly to the glass surface. Guided by AI algorithms and sensor control, the robot can detect window edges, plan optimal cleaning paths, and automatically return to its starting point once the job is done.
The robot’s vacuum or suction motor generates stable negative pressure, keeping the device firmly attached to the window. The built-in sensors and control board help it detect boundaries and plan efficient cleaning paths — whether horizontally or vertically — while microfiber pads clean the surface by friction and rotation.
A standard window cleaning robot consists of five core modules:
Base Frame – Supports the overall structure and integrates cleaning pads.
Driving System – Dual DC motors drive treads or wheels for movement and turning.
Suction System – Composed of a miniature vacuum pump, suction cup, and pressure sensor for adhesion.
Position Detection – Micro switches detect frame edges and prevent detachment.
Control & Power Unit – Includes PCB, processor, remote control, and power source.
During operation, the robot maintains constant suction while the driving motors control forward, backward, and turning motions. When the pressure sensor detects a drop in suction power, the controller automatically reactivates the pump to restore vacuum stability.
Window cleaning robots require high-torque, low-noise, and energy-efficient DC motors. Common configurations include:
Main Fan Motor:
Brushless: BL3717, BL2719, BL2717 (external rotor)
Brushed: R395
Wheel Drive Motor:
Brushless: BL2413, BL2713, BL2913 (external rotor)
Brushed: R385, R390
Performance Data:
Voltage: 24V
Speed: 8700RPM
Current: <110mA
Features: High torque, high speed, low current, long service life
With over 20 years of experience in micro DC motor design and manufacturing, Lihua Motor specializes in 1V–36V micro motors with 0.05W–100W output power and diameters from 5.4mm to 45mm. The company operates advanced automated production lines with over 80% automation level, providing customized motor solutions for smart home and cleaning robotics.
Lihua Motor is certified by IATF 16949, ISO 9001, CE, ROHS, REACH, and UL, ensuring world-class quality and environmental compliance. Its motors are widely used in smart cleaning robots, HVAC actuators, massage devices, and precision automation systems, helping customers achieve better performance and durability in every application.
